Vulnerabilities > CVE-2017-15087 - Information Exposure vulnerability in Redhat Gluster Storage 3.3

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
NONE
Availability impact
NONE
network
low complexity
redhat
CWE-200
nessus
NVD
Published: 2017-11-08
Updated: 2023-02-12

Summary

It was discovered that the fix for CVE-2017-12163 was not properly shipped in erratum RHSA-2017:2858 for Red Hat Gluster Storage 3.3 for RHEL 6.

Vulnerable Configurations

Part Description Count
Application
Redhat
1
OS
Redhat
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

Nessus

NASL familyRed Hat Local Security Checks
NASL idREDHAT-RHSA-2017-3110.NASL
descriptionAn update for samba is now available for Red Hat Gluster Storage 3.3 for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Samba is an open source implementation of the Server Message Block (SMB) protocol and the related Common Internet File System (CIFS) protocol, which allow PC-compatible machines to share files, printers, and various information. Security Fix(es) : * It was discovered that the RHSA-2017:2858 erratum for Red Hat Gluster Storage 3.3 for Red Hat Enterprise Linux 6 did not include the documented security fixes for issues CVE-2017-12150, CVE-2017-12151, and CVE-2017-12163. This update correctly applies fixes for those issues. (CVE-2017-15085, CVE-2017-15086, CVE-2017-15087) Descriptions of the original security issues : * It was found that samba did not enforce
last seen2020-06-01
modified2020-06-02
plugin id104455
published2017-11-08
reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/104455
titleRHEL 6 : Storage Server (RHSA-2017:3110)
code
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2017:3110. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(104455);
  script_version("3.9");
  script_cvs_date("Date: 2019/10/24 15:35:43");

  script_cve_id("CVE-2017-15085", "CVE-2017-15086", "CVE-2017-15087");
  script_xref(name:"RHSA", value:"2017:3110");

  script_name(english:"RHEL 6 : Storage Server (RHSA-2017:3110)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An update for samba is now available for Red Hat Gluster Storage 3.3
for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security
impact of Moderate. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

Samba is an open source implementation of the Server Message Block
(SMB) protocol and the related Common Internet File System (CIFS)
protocol, which allow PC-compatible machines to share files, printers,
and various information.

Security Fix(es) :

* It was discovered that the RHSA-2017:2858 erratum for Red Hat
Gluster Storage 3.3 for Red Hat Enterprise Linux 6 did not include the
documented security fixes for issues CVE-2017-12150, CVE-2017-12151,
and CVE-2017-12163. This update correctly applies fixes for those
issues. (CVE-2017-15085, CVE-2017-15086, CVE-2017-15087)

Descriptions of the original security issues :

* It was found that samba did not enforce 'SMB signing' when certain
configuration options were enabled. A remote attacker could launch a
man-in-the-middle attack and retrieve information in plain-text.
(CVE-2017-12150)

* A flaw was found in the way samba client used encryption with the
max protocol set as SMB3. The connection could lose the requirement
for signing and encrypting to any DFS redirects, allowing an attacker
to read or alter the contents of the connection via a
man-in-the-middle attack. (CVE-2017-12151)

* An information leak flaw was found in the way SMB1 protocol was
implemented by Samba. A malicious client could use this flaw to dump
server memory contents to a file on the samba share or to a shared
printer, though the exact area of server memory cannot be controlled
by the attacker. (CVE-2017-12163)

Red Hat would like to thank the Samba project for reporting
CVE-2017-12150 and CVE-2017-12151 and Yihan Lian and Zhibin Hu (Qihoo
360 GearTeam), Stefan Metzmacher (SerNet), and Jeremy Allison (Google)
for reporting CVE-2017-12163. Upstream acknowledges Stefan Metzmacher
(SerNet) as the original reporter of CVE-2017-12150 and
CVE-2017-12151."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2017:2858"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2017:3110"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2017-15085"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2017-15086"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2017-15087"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N");
  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:N/A:N");
  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:redhat:enterprise_linux:ctdb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ctdb-tests");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libsmbclient");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libsmbclient-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libwbclient");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libwbclient-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-client-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-common-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-common-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-dc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-dc-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-krb5-printing");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-pidl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-python");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-test");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-test-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-vfs-glusterfs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-winbind");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-winbind-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-winbind-krb5-locator");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:samba-winbind-modules");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/11/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/11/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/08");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.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) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 6.x", "Red Hat " + 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$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2017:3110";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;

  if (! (rpm_exists(release:"RHEL6", rpm:"glusterfs-server"))) audit(AUDIT_PACKAGE_NOT_INSTALLED, "Storage Server");

  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"ctdb-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"ctdb-tests-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"libsmbclient-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"libsmbclient-devel-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"libwbclient-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"libwbclient-devel-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-client-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-client-libs-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", reference:"samba-common-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-common-libs-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-common-tools-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-dc-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-dc-libs-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-debuginfo-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-devel-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-krb5-printing-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-libs-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", reference:"samba-pidl-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-python-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-test-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-test-libs-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-vfs-glusterfs-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-winbind-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-winbind-clients-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-winbind-krb5-locator-4.6.3-8.el6")) flag++;
  if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"samba-winbind-modules-4.6.3-8.el6")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ctdb / ctdb-tests / libsmbclient / libsmbclient-devel / libwbclient / etc");
  }
}

Redhat

advisories
rhsa
idRHSA-2017:3110
rpms
  • ctdb-0:4.6.3-8.el6rhs
  • ctdb-tests-0:4.6.3-8.el6rhs
  • libsmbclient-0:4.6.3-8.el6rhs
  • libsmbclient-devel-0:4.6.3-8.el6rhs
  • libwbclient-0:4.6.3-8.el6rhs
  • libwbclient-devel-0:4.6.3-8.el6rhs
  • samba-0:4.6.3-8.el6rhs
  • samba-client-0:4.6.3-8.el6rhs
  • samba-client-libs-0:4.6.3-8.el6rhs
  • samba-common-0:4.6.3-8.el6rhs
  • samba-common-libs-0:4.6.3-8.el6rhs
  • samba-common-tools-0:4.6.3-8.el6rhs
  • samba-dc-0:4.6.3-8.el6rhs
  • samba-dc-libs-0:4.6.3-8.el6rhs
  • samba-debuginfo-0:4.6.3-8.el6rhs
  • samba-devel-0:4.6.3-8.el6rhs
  • samba-krb5-printing-0:4.6.3-8.el6rhs
  • samba-libs-0:4.6.3-8.el6rhs
  • samba-pidl-0:4.6.3-8.el6rhs
  • samba-python-0:4.6.3-8.el6rhs
  • samba-test-0:4.6.3-8.el6rhs
  • samba-test-libs-0:4.6.3-8.el6rhs
  • samba-vfs-glusterfs-0:4.6.3-8.el6rhs
  • samba-winbind-0:4.6.3-8.el6rhs
  • samba-winbind-clients-0:4.6.3-8.el6rhs
  • samba-winbind-krb5-locator-0:4.6.3-8.el6rhs
  • samba-winbind-modules-0:4.6.3-8.el6rhs

References