Vulnerabilities > CVE-2011-1832 - Permissions, Privileges, and Access Controls vulnerability in Ecryptfs Ecryptfs-Utils and Ecryptfs Utils

047910
CVSS 2.1 - LOW
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL
local
low complexity
ecryptfs
CWE-264
nessus
NVD
Published: 2014-02-15
Updated: 2014-03-08

Summary

utils/mount.ecryptfs_private.c in ecryptfs-utils before 90 does not properly check mountpoint permissions, which allows local users to remove directories via a umount system call.

Vulnerable Configurations

Part Description Count
Application
Ecryptfs
31

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Accessing, Modifying or Executing Executable Files
    An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
  • Leverage Executable Code in Non-Executable Files
    An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
  • Blue Boxing
    This type of attack against older telephone switches and trunks has been around for decades. A tone is sent by an adversary to impersonate a supervisor signal which has the effect of rerouting or usurping command of the line. While the US infrastructure proper may not contain widespread vulnerabilities to this type of attack, many companies are connected globally through call centers and business process outsourcing. These international systems may be operated in countries which have not upgraded Telco infrastructure and so are vulnerable to Blue boxing. Blue boxing is a result of failure on the part of the system to enforce strong authorization for administrative functions. While the infrastructure is different than standard current applications like web applications, there are historical lessons to be learned to upgrade the access control for administrative functions.
  • Restful Privilege Elevation
    Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
  • Target Programs with Elevated Privileges
    This attack targets programs running with elevated privileges. The attacker would try to leverage a bug in the running program and get arbitrary code to execute with elevated privileges. For instance an attacker would look for programs that write to the system directories or registry keys (such as HKLM, which stores a number of critical Windows environment variables). These programs are typically running with elevated privileges and have usually not been designed with security in mind. Such programs are excellent exploit targets because they yield lots of power when they break. The malicious user try to execute its code at the same level as a privileged system call.

Nessus

  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-1188-1.NASL
    descriptionVasiliy Kulikov and Dan Rosenberg discovered that eCryptfs incorrectly validated permissions on the requested mountpoint. A local attacker could use this flaw to mount to arbitrary locations, leading to privilege escalation. (CVE-2011-1831) Vasiliy Kulikov and Dan Rosenberg discovered that eCryptfs incorrectly validated permissions on the requested mountpoint. A local attacker could use this flaw to unmount to arbitrary locations, leading to a denial of service. (CVE-2011-1832) Vasiliy Kulikov and Dan Rosenberg discovered that eCryptfs incorrectly validated permissions on the requested source directory. A local attacker could use this flaw to mount an arbitrary directory, possibly leading to information disclosure. A pending kernel update will provide the other half of the fix for this issue. (CVE-2011-1833) Dan Rosenberg and Marc Deslauriers discovered that eCryptfs incorrectly handled modifications to the mtab file when an error occurs. A local attacker could use this flaw to corrupt the mtab file, and possibly unmount arbitrary locations, leading to a denial of service. (CVE-2011-1834) Marc Deslauriers discovered that eCryptfs incorrectly handled keys when setting up an encrypted private directory. A local attacker could use this flaw to manipulate keys during creation of a new user. (CVE-2011-1835) Marc Deslauriers discovered that eCryptfs incorrectly handled permissions during recovery. A local attacker could use this flaw to possibly access another user
    last seen2020-06-01
    modified2020-06-02
    plugin id55810
    published2011-08-10
    reporterUbuntu Security Notice (C) 2011-2019 Canonical, Inc. / NASL script (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/55810
    titleUbuntu 10.04 LTS / 10.10 / 11.04 : ecryptfs-utils vulnerabilities (USN-1188-1)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-1188-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(55810);
  script_version("1.10");
  script_cvs_date("Date: 2019/09/19 12:54:27");

  script_cve_id("CVE-2011-1831", "CVE-2011-1832", "CVE-2011-1833", "CVE-2011-1834", "CVE-2011-1835", "CVE-2011-1836", "CVE-2011-1837");
  script_xref(name:"USN", value:"1188-1");

  script_name(english:"Ubuntu 10.04 LTS / 10.10 / 11.04 : ecryptfs-utils vulnerabilities (USN-1188-1)");
  script_summary(english:"Checks dpkg output for updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Ubuntu host is missing a security-related patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Vasiliy Kulikov and Dan Rosenberg discovered that eCryptfs incorrectly
validated permissions on the requested mountpoint. A local attacker
could use this flaw to mount to arbitrary locations, leading to
privilege escalation. (CVE-2011-1831)

Vasiliy Kulikov and Dan Rosenberg discovered that eCryptfs incorrectly
validated permissions on the requested mountpoint. A local attacker
could use this flaw to unmount to arbitrary locations, leading to a
denial of service. (CVE-2011-1832)

Vasiliy Kulikov and Dan Rosenberg discovered that eCryptfs incorrectly
validated permissions on the requested source directory. A local
attacker could use this flaw to mount an arbitrary directory, possibly
leading to information disclosure. A pending kernel update will
provide the other half of the fix for this issue. (CVE-2011-1833)

Dan Rosenberg and Marc Deslauriers discovered that eCryptfs
incorrectly handled modifications to the mtab file when an error
occurs. A local attacker could use this flaw to corrupt the mtab file,
and possibly unmount arbitrary locations, leading to a denial of
service. (CVE-2011-1834)

Marc Deslauriers discovered that eCryptfs incorrectly handled keys
when setting up an encrypted private directory. A local attacker could
use this flaw to manipulate keys during creation of a new user.
(CVE-2011-1835)

Marc Deslauriers discovered that eCryptfs incorrectly handled
permissions during recovery. A local attacker could use this flaw to
possibly access another user's data during the recovery process. This
issue only applied to Ubuntu 11.04. (CVE-2011-1836)

Vasiliy Kulikov discovered that eCryptfs incorrectly handled lock
counters. A local attacker could use this flaw to possibly overwrite
arbitrary files. The default symlink restrictions in Ubuntu 10.10 and
11.04 should protect against this issue. (CVE-2011-1837).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://usn.ubuntu.com/1188-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected ecryptfs-utils package."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:ecryptfs-utils");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:11.04");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/10/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2011/08/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/08/10");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2011-2019 Canonical, Inc. / NASL script (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(10\.04|10\.10|11\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 10.04 / 10.10 / 11.04", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"10.04", pkgname:"ecryptfs-utils", pkgver:"83-0ubuntu3.2.10.04.1")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"ecryptfs-utils", pkgver:"83-0ubuntu3.2.10.10.1")) flag++;
if (ubuntu_check(osver:"11.04", pkgname:"ecryptfs-utils", pkgver:"87-0ubuntu1.1")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ecryptfs-utils");
}
  • NASL familyCentOS Local Security Checks
    NASL idCENTOS_RHSA-2011-1241.NASL
    descriptionUpdated ecryptfs-utils packages that fix several security issues are now available for Red Hat Enterprise Linux 5 and 6. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. eCryptfs is a stacked, cryptographic file system. It is transparent to the underlying file system and provides per-file granularity. eCryptfs is released as a Technology Preview for Red Hat Enterprise Linux 5 and 6. The setuid mount.ecryptfs_private utility allows users to mount an eCryptfs file system. This utility can only be run by users in the
    last seen2020-06-01
    modified2020-06-02
    plugin id56273
    published2011-09-23
    reporterThis script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/56273
    titleCentOS 5 : ecryptfs-utils (CESA-2011:1241)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2011:1241 and 
# CentOS Errata and Security Advisory 2011:1241 respectively.
#

include("compat.inc");

if (description)
{
  script_id(56273);
  script_version("1.16");
  script_cvs_date("Date: 2019/10/25 13:36:06");

  script_cve_id("CVE-2011-1831", "CVE-2011-1832", "CVE-2011-1833", "CVE-2011-1834", "CVE-2011-1835", "CVE-2011-1837", "CVE-2011-3145");
  script_bugtraq_id(49108, 49287);
  script_xref(name:"RHSA", value:"2011:1241");

  script_name(english:"CentOS 5 : ecryptfs-utils (CESA-2011:1241)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote CentOS host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated ecryptfs-utils packages that fix several security issues are
now available for Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having
moderate security impact. Common Vulnerability Scoring System (CVSS)
base scores, which give detailed severity ratings, are available for
each vulnerability from the CVE links in the References section.

eCryptfs is a stacked, cryptographic file system. It is transparent to
the underlying file system and provides per-file granularity. eCryptfs
is released as a Technology Preview for Red Hat Enterprise Linux 5 and
6.

The setuid mount.ecryptfs_private utility allows users to mount an
eCryptfs file system. This utility can only be run by users in the
'ecryptfs' group.

A race condition flaw was found in the way mount.ecryptfs_private
checked the permissions of a requested mount point when mounting an
encrypted file system. A local attacker could possibly use this flaw
to escalate their privileges by mounting over an arbitrary directory.
(CVE-2011-1831)

A race condition flaw in umount.ecryptfs_private could allow a local
attacker to unmount an arbitrary file system. (CVE-2011-1832)

It was found that mount.ecryptfs_private did not handle certain errors
correctly when updating the mtab (mounted file systems table) file,
allowing a local attacker to corrupt the mtab file and possibly
unmount an arbitrary file system. (CVE-2011-1834)

An insecure temporary file use flaw was found in the
ecryptfs-setup-private script. A local attacker could use this script
to insert their own key that will subsequently be used by a new user,
possibly giving the attacker access to the user's encrypted data if
existing file permissions allow access. (CVE-2011-1835)

A race condition flaw in mount.ecryptfs_private could allow a local
attacker to overwrite arbitrary files. (CVE-2011-1837)

A race condition flaw in the way temporary files were accessed in
mount.ecryptfs_private could allow a malicious, local user to make
arbitrary modifications to the mtab file. (CVE-2011-3145)

A race condition flaw was found in the way mount.ecryptfs_private
checked the permissions of the directory to mount. A local attacker
could use this flaw to mount (and then access) a directory they would
otherwise not have access to. Note: The fix for this issue is
incomplete until a kernel-space change is made. Future Red Hat
Enterprise Linux 5 and 6 kernel updates will correct this issue.
(CVE-2011-1833)

Red Hat would like to thank the Ubuntu Security Team for reporting
these issues. The Ubuntu Security Team acknowledges Vasiliy Kulikov of
Openwall and Dan Rosenberg as the original reporters of CVE-2011-1831,
CVE-2011-1832, and CVE-2011-1833; Dan Rosenberg and Marc Deslauriers
as the original reporters of CVE-2011-1834; Marc Deslauriers as the
original reporter of CVE-2011-1835; and Vasiliy Kulikov of Openwall as
the original reporter of CVE-2011-1837.

Users of ecryptfs-utils are advised to upgrade to these updated
packages, which contain backported patches to correct these issues."
  );
  # https://lists.centos.org/pipermail/centos-announce/2011-September/017811.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?52413165"
  );
  # https://lists.centos.org/pipermail/centos-announce/2011-September/017812.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?db14ec10"
  );
  # https://lists.centos.org/pipermail/centos-cr-announce/2011-September/000040.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?af9cba0b"
  );
  # https://lists.centos.org/pipermail/centos-cr-announce/2011-September/000041.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?2e894d9a"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected ecryptfs-utils packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ecryptfs-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ecryptfs-utils-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:ecryptfs-utils-gui");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:5");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/10/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2011/09/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/09/23");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"CentOS Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^5([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 5.x", "CentOS " + os_ver);

if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);


flag = 0;
if (rpm_check(release:"CentOS-5", reference:"ecryptfs-utils-75-5.el5_7.2")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ecryptfs-utils-devel-75-5.el5_7.2")) flag++;
if (rpm_check(release:"CentOS-5", reference:"ecryptfs-utils-gui-75-5.el5_7.2")) flag++;


if (flag)
{
  cr_plugin_caveat = '\n' +
    'NOTE: The security advisory associated with this vulnerability has a\n' +
    'fixed package version that may only be available in the continuous\n' +
    'release (CR) repository for CentOS, until it is present in the next\n' +
    'point release of CentOS.\n\n' +

    'If an equal or higher package level does not exist in the baseline\n' +
    'repository for your major version of CentOS, then updates from the CR\n' +
    'repository will need to be applied in order to address the\n' +
    'vulnerability.\n';
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get() + cr_plugin_caveat
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ecryptfs-utils / ecryptfs-utils-devel / ecryptfs-utils-gui");
}
  • NASL familySuSE Local Security Checks
    NASL idSUSE_11_ECRYPTFS-UTILS-110804.NASL
    descriptionThis update of ecryptfs-utils fixes several security problems : - Race condition when checking mountpoint during mount. (CVE-2011-1831) - Race condition when checking mountpoint during unmount. (CVE-2011-1832) - Race condition when checking source during mount. (CVE-2011-1833) - Improper mtab handling allowing corruption due to resource limits, signals, etc. (CVE-2011-1834)
    last seen2020-06-01
    modified2020-06-02
    plugin id55827
    published2011-08-12
    reporterThis script is Copyright (C) 2011-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/55827
    titleSuSE 11.1 Security Update : ecryptfs-utils (SAT Patch Number 4956)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from SuSE 11 update information. The text itself is
# copyright (C) Novell, Inc.
#

if (NASL_LEVEL < 3000) exit(0);

include("compat.inc");

if (description)
{
  script_id(55827);
  script_version("1.8");
  script_cvs_date("Date: 2019/10/25 13:36:42");

  script_cve_id("CVE-2011-1831", "CVE-2011-1832", "CVE-2011-1833", "CVE-2011-1834", "CVE-2011-1835", "CVE-2011-1836", "CVE-2011-1837");

  script_name(english:"SuSE 11.1 Security Update : ecryptfs-utils (SAT Patch Number 4956)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SuSE 11 host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update of ecryptfs-utils fixes several security problems :

  - Race condition when checking mountpoint during mount.
    (CVE-2011-1831)

  - Race condition when checking mountpoint during unmount.
    (CVE-2011-1832)

  - Race condition when checking source during mount.
    (CVE-2011-1833)

  - Improper mtab handling allowing corruption due to
    resource limits, signals, etc. (CVE-2011-1834)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=709771"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2011-1831.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2011-1832.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2011-1833.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2011-1834.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2011-1835.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2011-1836.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2011-1837.html"
  );
  script_set_attribute(attribute:"solution", value:"Apply SAT patch number 4956.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:ecryptfs-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:ecryptfs-utils-32bit");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/08/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/08/12");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2019 Tenable Network Security, Inc.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)11") audit(AUDIT_OS_NOT, "SuSE 11");
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SuSE 11", cpu);

pl = get_kb_item("Host/SuSE/patchlevel");
if (isnull(pl) || int(pl) != 1) audit(AUDIT_OS_NOT, "SuSE 11.1");


flag = 0;
if (rpm_check(release:"SLED11", sp:1, cpu:"i586", reference:"ecryptfs-utils-61-1.29.1")) flag++;
if (rpm_check(release:"SLED11", sp:1, cpu:"x86_64", reference:"ecryptfs-utils-61-1.29.1")) flag++;
if (rpm_check(release:"SLED11", sp:1, cpu:"x86_64", reference:"ecryptfs-utils-32bit-61-1.29.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, reference:"ecryptfs-utils-61-1.29.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"s390x", reference:"ecryptfs-utils-32bit-61-1.29.1")) flag++;
if (rpm_check(release:"SLES11", sp:1, cpu:"x86_64", reference:"ecryptfs-utils-32bit-61-1.29.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2011-10733.NASL
    description - privilege escalation via mountpoint race conditions (CVE-2011-1831, CVE-2011-1832) - race condition when checking source during mount (CVE-2011-1833) - mtab corruption via improper handling (CVE-2011-1834) - key poisoning via insecure temp directory handling (CVE-2011-1835) - information disclosure via recovery mount in /tmp (CVE-2011-1836) - arbitrary file overwrite via lock counter race (CVE-2011-1837) - improve logging messages of ecryptfs pam module - keep own copy of passphrase, pam clears it too early - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - improve logging messages of ecryptfs pam module - keep own copy of passphrase, pam clears it too early - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - improve logging messages of ecryptfs pam module - keep own copy of passphrase, pam clears it too early - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - keyring from auth stack does not survive, use pam_data and delayed keyring initialization Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id56076
    published2011-09-06
    reporterThis script is Copyright (C) 2011-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/56076
    titleFedora 15 : ecryptfs-utils-90-1.fc15 (2011-10733)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory 2011-10733.
#

include("compat.inc");

if (description)
{
  script_id(56076);
  script_version("1.9");
  script_cvs_date("Date: 2019/08/02 13:32:33");

  script_cve_id("CVE-2011-1831", "CVE-2011-1832", "CVE-2011-1834", "CVE-2011-1835", "CVE-2011-1837");
  script_xref(name:"FEDORA", value:"2011-10733");

  script_name(english:"Fedora 15 : ecryptfs-utils-90-1.fc15 (2011-10733)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"  - privilege escalation via mountpoint race conditions
    (CVE-2011-1831, CVE-2011-1832)

    - race condition when checking source during mount
      (CVE-2011-1833)

    - mtab corruption via improper handling (CVE-2011-1834)

    - key poisoning via insecure temp directory handling
      (CVE-2011-1835)

    - information disclosure via recovery mount in /tmp
      (CVE-2011-1836)

    - arbitrary file overwrite via lock counter race
      (CVE-2011-1837)

  - improve logging messages of ecryptfs pam module

    - keep own copy of passphrase, pam clears it too early

    - keyring from auth stack does not survive, use pam_data
      and delayed keyring initialization

    - keyring from auth stack does not survive, use pam_data
      and delayed keyring initialization

    - keyring from auth stack does not survive, use pam_data
      and delayed keyring initialization

    - improve logging messages of ecryptfs pam module

    - keep own copy of passphrase, pam clears it too early

    - keyring from auth stack does not survive, use pam_data
      and delayed keyring initialization

    - keyring from auth stack does not survive, use pam_data
      and delayed keyring initialization

    - keyring from auth stack does not survive, use pam_data
      and delayed keyring initialization

    - improve logging messages of ecryptfs pam module

    - keep own copy of passphrase, pam clears it too early

    - keyring from auth stack does not survive, use pam_data
      and delayed keyring initialization

    - keyring from auth stack does not survive, use pam_data
      and delayed keyring initialization

    - keyring from auth stack does not survive, use pam_data
      and delayed keyring initialization

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=729465"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2011-September/065042.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?8d9e89ee"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected ecryptfs-utils package."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:ecryptfs-utils");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:15");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/08/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/09/06");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2019 Tenable Network Security, Inc.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! ereg(pattern:"^15([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 15.x", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);

flag = 0;
if (rpm_check(release:"FC15", reference:"ecryptfs-utils-90-1.fc15")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ecryptfs-utils");
}
  • NASL familyScientific Linux Local Security Checks
    NASL idSL_20110831_ECRYPTFS_UTILS_ON_SL5_X.NASL
    descriptioneCryptfs is a stacked, cryptographic file system. It is transparent to the underlying file system and provides per-file granularity. The setuid mount.ecryptfs_private utility allows users to mount an eCryptfs file system. This utility can only be run by users in the
    last seen2020-06-01
    modified2020-06-02
    plugin id61124
    published2012-08-01
    reporterThis script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/61124
    titleScientific Linux Security Update : ecryptfs-utils on SL5.x, SL6.x i386/x86_64
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#

include("compat.inc");

if (description)
{
  script_id(61124);
  script_version("1.7");
  script_cvs_date("Date: 2019/10/25 13:36:20");

  script_cve_id("CVE-2011-1831", "CVE-2011-3145");

  script_name(english:"Scientific Linux Security Update : ecryptfs-utils on SL5.x, SL6.x i386/x86_64");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Scientific Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"eCryptfs is a stacked, cryptographic file system. It is transparent to
the underlying file system and provides per-file granularity.

The setuid mount.ecryptfs_private utility allows users to mount an
eCryptfs file system. This utility can only be run by users in the
'ecryptfs' group.

A race condition flaw was found in the way mount.ecryptfs_private
checked the permissions of a requested mount point when mounting an
encrypted file system. A local attacker could possibly use this flaw
to escalate their privileges by mounting over an arbitrary directory.
(CVE-2011-1831)

A race condition flaw in umount.ecryptfs_private could allow a local
attacker to unmount an arbitrary file system. (CVE-2011-1832)

It was found that mount.ecryptfs_private did not handle certain errors
correctly when updating the mtab (mounted file systems table) file,
allowing a local attacker to corrupt the mtab file and possibly
unmount an arbitrary file system. (CVE-2011-1834)

An insecure temporary file use flaw was found in the
ecryptfs-setup-private script. A local attacker could use this script
to insert their own key that will subsequently be used by a new user,
possibly giving the attacker access to the user's encrypted data if
existing file permissions allow access. (CVE-2011-1835)

A race condition flaw in mount.ecryptfs_private could allow a local
attacker to overwrite arbitrary files. (CVE-2011-1837)

A race condition flaw in the way temporary files were accessed in
mount.ecryptfs_private could allow a malicious, local user to make
arbitrary modifications to the mtab file. (CVE-2011-3145)

A race condition flaw was found in the way mount.ecryptfs_private
checked the permissions of the directory to mount. A local attacker
could use this flaw to mount (and then access) a directory they would
otherwise not have access to. Note: The fix for this issue is
incomplete until a kernel-space change is made. Future Scientific
Linux 5 and 6 kernel updates will correct this issue. (CVE-2011-1833)

Users of ecryptfs-utils are advised to upgrade to these updated
packages, which contain backported patches to correct these issues."
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind1109&L=scientific-linux-errata&T=0&P=615
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?4fe712e0"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/02/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2011/08/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/01");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Scientific Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);


flag = 0;
if (rpm_check(release:"SL5", reference:"ecryptfs-utils-75-5.el5_7.2")) flag++;
if (rpm_check(release:"SL5", reference:"ecryptfs-utils-debuginfo-75-5.el5_7.2")) flag++;
if (rpm_check(release:"SL5", reference:"ecryptfs-utils-devel-75-5.el5_7.2")) flag++;
if (rpm_check(release:"SL5", reference:"ecryptfs-utils-gui-75-5.el5_7.2")) flag++;

if (rpm_check(release:"SL6", reference:"ecryptfs-utils-82-6.el6_1.3")) flag++;
if (rpm_check(release:"SL6", reference:"ecryptfs-utils-debuginfo-82-6.el6_1.3")) flag++;
if (rpm_check(release:"SL6", reference:"ecryptfs-utils-devel-82-6.el6_1.3")) flag++;
if (rpm_check(release:"SL6", reference:"ecryptfs-utils-python-82-6.el6_1.3")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2011-10671.NASL
    description - privilege escalation via mountpoint race conditions (CVE-2011-1831, CVE-2011-1832) - race condition when checking source during mount (CVE-2011-1833) - mtab corruption via improper handling (CVE-2011-1834) - key poisoning via insecure temp directory handling (CVE-2011-1835) - information disclosure via recovery mount in /tmp (CVE-2011-1836) - arbitrary file overwrite via lock counter race (CVE-2011-1837) - improve logging messages of ecryptfs pam module - keep own copy of passphrase, pam clears it too early - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - improve logging messages of ecryptfs pam module - keep own copy of passphrase, pam clears it too early - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - improve logging messages of ecryptfs pam module - keep own copy of passphrase, pam clears it too early - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - keyring from auth stack does not survive, use pam_data and delayed keyring initialization Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id56095
    published2011-09-07
    reporterThis script is Copyright (C) 2011-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/56095
    titleFedora 16 : ecryptfs-utils-90-1.fc16 (2011-10671)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory 2011-10671.
#

include("compat.inc");

if (description)
{
  script_id(56095);
  script_version("1.9");
  script_cvs_date("Date: 2019/08/02 13:32:33");

  script_cve_id("CVE-2011-1831", "CVE-2011-1832", "CVE-2011-1834", "CVE-2011-1835", "CVE-2011-1837");
  script_xref(name:"FEDORA", value:"2011-10671");

  script_name(english:"Fedora 16 : ecryptfs-utils-90-1.fc16 (2011-10671)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"  - privilege escalation via mountpoint race conditions
    (CVE-2011-1831, CVE-2011-1832)

    - race condition when checking source during mount
      (CVE-2011-1833)

    - mtab corruption via improper handling (CVE-2011-1834)

    - key poisoning via insecure temp directory handling
      (CVE-2011-1835)

    - information disclosure via recovery mount in /tmp
      (CVE-2011-1836)

    - arbitrary file overwrite via lock counter race
      (CVE-2011-1837)

  - improve logging messages of ecryptfs pam module

    - keep own copy of passphrase, pam clears it too early

    - keyring from auth stack does not survive, use pam_data
      and delayed keyring initialization

    - keyring from auth stack does not survive, use pam_data
      and delayed keyring initialization

    - keyring from auth stack does not survive, use pam_data
      and delayed keyring initialization

    - improve logging messages of ecryptfs pam module

    - keep own copy of passphrase, pam clears it too early

    - keyring from auth stack does not survive, use pam_data
      and delayed keyring initialization

    - keyring from auth stack does not survive, use pam_data
      and delayed keyring initialization

    - keyring from auth stack does not survive, use pam_data
      and delayed keyring initialization

    - improve logging messages of ecryptfs pam module

    - keep own copy of passphrase, pam clears it too early

    - keyring from auth stack does not survive, use pam_data
      and delayed keyring initialization

    - keyring from auth stack does not survive, use pam_data
      and delayed keyring initialization

    - keyring from auth stack does not survive, use pam_data
      and delayed keyring initialization

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.redhat.com/show_bug.cgi?id=729465"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2011-September/065422.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?e1c9a887"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected ecryptfs-utils package."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:ecryptfs-utils");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:16");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/08/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/09/07");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2019 Tenable Network Security, Inc.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! ereg(pattern:"^16([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 16.x", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);

flag = 0;
if (rpm_check(release:"FC16", reference:"ecryptfs-utils-90-1.fc16")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ecryptfs-utils");
}
  • NASL familySuSE Local Security Checks
    NASL idSUSE_11_3_ECRYPTFS-UTILS-110811.NASL
    descriptionThis update of ecryptfs-utils fixes several security problems : - CVE-2011-1831 - Race condition when checking mountpoint during mount. - CVE-2011-1832 - Race condition when checking mountpoint during unmount. - CVE-2011-1833 - Race condition when checking source during mount. - CVE-2011-1834 - Improper mtab handling allowing corruption due to resource limits, signals, etc. - CVE-2011-1835 - Key poisoning in ecryptfs-setup-private due to insecure temp directory. - CVE-2011-1837 - Predictable lock counter name and associated races.
    last seen2020-06-01
    modified2020-06-02
    plugin id75473
    published2014-06-13
    reporterThis script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/75473
    titleopenSUSE Security Update : ecryptfs-utils (openSUSE-SU-2011:0902-1)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update ecryptfs-utils-4986.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(75473);
  script_version("1.4");
  script_cvs_date("Date: 2019/10/25 13:36:41");

  script_cve_id("CVE-2011-1831", "CVE-2011-1832", "CVE-2011-1833", "CVE-2011-1834", "CVE-2011-1835", "CVE-2011-1837");

  script_name(english:"openSUSE Security Update : ecryptfs-utils (openSUSE-SU-2011:0902-1)");
  script_summary(english:"Check for the ecryptfs-utils-4986 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update of ecryptfs-utils fixes several security problems :

  - CVE-2011-1831 - Race condition when checking mountpoint
    during mount.

  - CVE-2011-1832 - Race condition when checking mountpoint
    during unmount.

  - CVE-2011-1833 - Race condition when checking source
    during mount.

  - CVE-2011-1834 - Improper mtab handling allowing
    corruption due to resource limits, signals, etc.

  - CVE-2011-1835 - Key poisoning in ecryptfs-setup-private
    due to insecure temp directory.

  - CVE-2011-1837 - Predictable lock counter name and
    associated races."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=709771"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.opensuse.org/opensuse-updates/2011-08/msg00020.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected ecryptfs-utils packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ecryptfs-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ecryptfs-utils-32bit");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:11.3");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/08/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/13");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE11\.3)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "11.3", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE11.3", reference:"ecryptfs-utils-83-3.3.1") ) flag++;
if ( rpm_check(release:"SUSE11.3", cpu:"x86_64", reference:"ecryptfs-utils-32bit-83-3.3.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ecryptfs-utils");
}
  • NASL familySuSE Local Security Checks
    NASL idSUSE_11_4_ECRYPTFS-UTILS-110811.NASL
    descriptionThis update of ecryptfs-utils fixes several security problems : - CVE-2011-1831 - Race condition when checking mountpoint during mount. - CVE-2011-1832 - Race condition when checking mountpoint during unmount. - CVE-2011-1833 - Race condition when checking source during mount. - CVE-2011-1834 - Improper mtab handling allowing corruption due to resource limits, signals, etc. - CVE-2011-1835 - Key poisoning in ecryptfs-setup-private due to insecure temp directory. - CVE-2011-1837 - Predictable lock counter name and associated races.
    last seen2020-06-01
    modified2020-06-02
    plugin id75821
    published2014-06-13
    reporterThis script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/75821
    titleopenSUSE Security Update : ecryptfs-utils (openSUSE-SU-2011:0902-1)
  • NASL familyOracle Linux Local Security Checks
    NASL idORACLELINUX_ELSA-2011-1241.NASL
    descriptionFrom Red Hat Security Advisory 2011:1241 : Updated ecryptfs-utils packages that fix several security issues are now available for Red Hat Enterprise Linux 5 and 6. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. eCryptfs is a stacked, cryptographic file system. It is transparent to the underlying file system and provides per-file granularity. eCryptfs is released as a Technology Preview for Red Hat Enterprise Linux 5 and 6. The setuid mount.ecryptfs_private utility allows users to mount an eCryptfs file system. This utility can only be run by users in the
    last seen2020-06-01
    modified2020-06-02
    plugin id68338
    published2013-07-12
    reporterThis script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/68338
    titleOracle Linux 5 / 6 : ecryptfs-utils (ELSA-2011-1241)
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-2382.NASL
    descriptionSeveral problems have been discovered in eCryptfs, a cryptographic filesystem for Linux. - CVE-2011-1831 Vasiliy Kulikov of Openwall and Dan Rosenberg discovered that eCryptfs incorrectly validated permissions on the requested mountpoint. A local attacker could use this flaw to mount to arbitrary locations, leading to privilege escalation. - CVE-2011-1832 Vasiliy Kulikov of Openwall and Dan Rosenberg discovered that eCryptfs incorrectly validated permissions on the requested mountpoint. A local attacker could use this flaw to unmount to arbitrary locations, leading to a denial of service. - CVE-2011-1834 Dan Rosenberg and Marc Deslauriers discovered that eCryptfs incorrectly handled modifications to the mtab file when an error occurs. A local attacker could use this flaw to corrupt the mtab file, and possibly unmount arbitrary locations, leading to a denial of service. - CVE-2011-1835 Marc Deslauriers discovered that eCryptfs incorrectly handled keys when setting up an encrypted private directory. A local attacker could use this flaw to manipulate keys during creation of a new user. - CVE-2011-1837 Vasiliy Kulikov of Openwall discovered that eCryptfs incorrectly handled lock counters. A local attacker could use this flaw to possibly overwrite arbitrary files. We acknowledge the work of the Ubuntu distribution in preparing patches suitable for near-direct inclusion in the Debian package.
    last seen2020-03-17
    modified2012-01-12
    plugin id57522
    published2012-01-12
    reporterThis script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/57522
    titleDebian DSA-2382-1 : ecryptfs-utils - multiple vulnerabilities
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2011-1241.NASL
    descriptionUpdated ecryptfs-utils packages that fix several security issues are now available for Red Hat Enterprise Linux 5 and 6. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. eCryptfs is a stacked, cryptographic file system. It is transparent to the underlying file system and provides per-file granularity. eCryptfs is released as a Technology Preview for Red Hat Enterprise Linux 5 and 6. The setuid mount.ecryptfs_private utility allows users to mount an eCryptfs file system. This utility can only be run by users in the
    last seen2020-06-01
    modified2020-06-02
    plugin id56028
    published2011-09-01
    reporterThis script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/56028
    titleRHEL 5 / 6 : ecryptfs-utils (RHSA-2011:1241)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2011-10718.NASL
    description - privilege escalation via mountpoint race conditions (CVE-2011-1831, CVE-2011-1832) - race condition when checking source during mount (CVE-2011-1833) - mtab corruption via improper handling (CVE-2011-1834) - key poisoning via insecure temp directory handling (CVE-2011-1835) - information disclosure via recovery mount in /tmp (CVE-2011-1836) - arbitrary file overwrite via lock counter race (CVE-2011-1837) - improve logging messages of ecryptfs pam module - keep own copy of passphrase, pam clears it too early - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - improve logging messages of ecryptfs pam module - keep own copy of passphrase, pam clears it too early - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - improve logging messages of ecryptfs pam module - keep own copy of passphrase, pam clears it too early - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - keyring from auth stack does not survive, use pam_data and delayed keyring initialization - keyring from auth stack does not survive, use pam_data and delayed keyring initialization Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id56075
    published2011-09-06
    reporterThis script is Copyright (C) 2011-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/56075
    titleFedora 14 : ecryptfs-utils-90-1.fc14 (2011-10718)

Redhat

rpms
  • ecryptfs-utils-0:75-5.el5_7.2
  • ecryptfs-utils-0:82-6.el6_1.3
  • ecryptfs-utils-debuginfo-0:75-5.el5_7.2
  • ecryptfs-utils-debuginfo-0:82-6.el6_1.3
  • ecryptfs-utils-devel-0:75-5.el5_7.2
  • ecryptfs-utils-devel-0:82-6.el6_1.3
  • ecryptfs-utils-gui-0:75-5.el5_7.2
  • ecryptfs-utils-python-0:82-6.el6_1.3

References