Vulnerabilities > CVE-2010-0005 - Permissions, Privileges, and Access Controls vulnerability in Viewvc

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
low complexity
viewvc
CWE-264
nessus
NVD
Published: 2010-01-29
Updated: 2010-02-02

Summary

query.py in the query interface in ViewVC before 1.1.3 does not reject configurations that specify an unsupported authorizer for a root, which might allow remote attackers to bypass intended access restrictions via a query.

Vulnerable Configurations

Part Description Count
Application
Viewvc
33

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 familyFedora Local Security Checks
    NASL idFEDORA_2009-13634.NASL
    description - security fix: add root listing support of per-root authz config * security fix: query.py requires
    last seen2020-06-01
    modified2020-06-02
    plugin id43607
    published2009-12-29
    reporterThis script is Copyright (C) 2009-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/43607
    titleFedora 11 : viewvc-1.1.3-1.fc11 (2009-13634)
    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 2009-13634.
#

include("compat.inc");

if (description)
{
  script_id(43607);
  script_version("1.11");
  script_cvs_date("Date: 2019/08/02 13:32:29");

  script_cve_id("CVE-2010-0004", "CVE-2010-0005");
  script_xref(name:"FEDORA", value:"2009-13634");

  script_name(english:"Fedora 11 : viewvc-1.1.3-1.fc11 (2009-13634)");
  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:
"  - security fix: add root listing support of per-root authz
    config * security fix: query.py requires 'forbidden'
    authorizer (or none) in config * fix URL- ification of
    truncated log messages (issue #3) * fix regexp input
    validation (issue #426, #427, #440) * add support for
    configurable tab-to-spaces conversion * fix
    not-a-sequence error in diff view * allow viewvc-install
    to work when templates-contrib is absent * minor
    template improvements/corrections

  - expose revision metadata in diff view (issue #431) *
    markup file/directory item property URLs and email
    addresses (issue #434) * make ViewVC cross copies in
    Subversion history by default * fix bug that caused
    standalone.py failure under Python 1.5.2 (issue #442) *
    fix support for per-vhost overrides of authorizer
    parameters (issue #411) * fix root name identification
    in query.py interface

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."
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2009-December/033273.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?a90883e7"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected viewvc package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_cwe_id(200, 264);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:viewvc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:11");

  script_set_attribute(attribute:"patch_publication_date", value:"2009/12/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/12/29");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2009-2019 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:"^11([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 11.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:"FC11", reference:"viewvc-1.1.3-1.fc11")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "viewvc");
}
  • NASL familySuSE Local Security Checks
    NASL idSUSE_11_2_VIEWVC-100125.NASL
    descriptionThe viewvc update fixes the following security problems : - add root listing support of per-root authz config (CVE-2010-0004). - query.py requires
    last seen2020-06-01
    modified2020-06-02
    plugin id44322
    published2010-01-27
    reporterThis script is Copyright (C) 2010-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/44322
    titleopenSUSE Security Update : viewvc (viewvc-1859)
    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 viewvc-1859.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(44322);
  script_version("1.10");
  script_cvs_date("Date: 2019/10/25 13:36:39");

  script_cve_id("CVE-2010-0004", "CVE-2010-0005");

  script_name(english:"openSUSE Security Update : viewvc (viewvc-1859)");
  script_summary(english:"Check for the viewvc-1859 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The viewvc update fixes the following security problems :

  - add root listing support of per-root authz config
    (CVE-2010-0004).

  - query.py requires 'forbidden' authorizer (or none) in
    config (CVE-2010-0005)."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=570605"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected viewvc package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_cwe_id(200, 264);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:viewvc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:11.2");

  script_set_attribute(attribute:"patch_publication_date", value:"2010/01/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/01/27");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2010-2019 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/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)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE11\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "11.2", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);



flag = 0;

if ( rpm_check(release:"SUSE11.2", reference:"viewvc-1.1.3-1.1.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "viewvc");
}
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2009-13610.NASL
    description - security fix: add root listing support of per-root authz config * security fix: query.py requires
    last seen2020-06-01
    modified2020-06-02
    plugin id43606
    published2009-12-29
    reporterThis script is Copyright (C) 2009-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/43606
    titleFedora 12 : viewvc-1.1.3-1.fc12 (2009-13610)
    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 2009-13610.
#

include("compat.inc");

if (description)
{
  script_id(43606);
  script_version("1.11");
  script_cvs_date("Date: 2019/08/02 13:32:29");

  script_cve_id("CVE-2010-0004", "CVE-2010-0005");
  script_xref(name:"FEDORA", value:"2009-13610");

  script_name(english:"Fedora 12 : viewvc-1.1.3-1.fc12 (2009-13610)");
  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:
"  - security fix: add root listing support of per-root authz
    config * security fix: query.py requires 'forbidden'
    authorizer (or none) in config * fix URL- ification of
    truncated log messages (issue #3) * fix regexp input
    validation (issue #426, #427, #440) * add support for
    configurable tab-to-spaces conversion * fix
    not-a-sequence error in diff view * allow viewvc-install
    to work when templates-contrib is absent * minor
    template improvements/corrections

  - expose revision metadata in diff view (issue #431) *
    markup file/directory item property URLs and email
    addresses (issue #434) * make ViewVC cross copies in
    Subversion history by default * fix bug that caused
    standalone.py failure under Python 1.5.2 (issue #442) *
    fix support for per-vhost overrides of authorizer
    parameters (issue #411) * fix root name identification
    in query.py interface

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."
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2009-December/033230.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?08a9ce0f"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected viewvc package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_cwe_id(200, 264);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:viewvc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:12");

  script_set_attribute(attribute:"patch_publication_date", value:"2009/12/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/12/29");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2009-2019 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:"^12([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 12.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:"FC12", reference:"viewvc-1.1.3-1.fc12")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "viewvc");
}

References