Vulnerabilities > CVE-2013-2765 - Null Pointer Dereference vulnerability in multiple products

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2013-641.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(75113);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2009-5031", "CVE-2012-2751", "CVE-2012-4528", "CVE-2013-1915", "CVE-2013-2765");

  script_name(english:"openSUSE Security Update : apache2-mod_security2 (openSUSE-SU-2013:1331-1)");
  script_summary(english:"Check for the openSUSE-2013-641 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"  - complete overhaul of this package, with update to 2.7.5.

  - ruleset update to 2.2.8-0-g0f07cbb.

  - new configuration framework private to mod_security2:
    /etc/apache2/conf.d/mod_security2.conf loads
    /usr/share/apache2-mod_security2/rules/modsecurity_crs_1
    0_setup.conf, then /etc/apache2/mod_security2.d/*.conf ,
    as set up based on advice in
    /etc/apache2/conf.d/mod_security2.conf Your
    configuration starting point is
    /etc/apache2/conf.d/mod_security2.conf

  - !!! Please note that mod_unique_id is needed for
    mod_security2 to run!

  - modsecurity-apache_2.7.5-build_fix_pcre.diff changes
    erroneaous linker parameter, preventing rpath in shared
    object.

  - fixes contained for the following bugs :

  - CVE-2009-5031, CVE-2012-2751 [bnc#768293] request
    parameter handling

  - [bnc#768293] multi-part bypass, minor threat

  - CVE-2013-1915 [bnc#813190] XML external entity
    vulnerability

  - CVE-2012-4528 [bnc#789393] rule bypass

  - CVE-2013-2765 [bnc#822664] NULL pointer dereference
    crash

  - new from 2.5.9 to 2.7.5, only major changes :

  - GPLv2 replaced by Apache License v2

  - rules are not part of the source tarball any longer, but
    maintaned upstream externally, and included in this
    package.

  - documentation was externalized to a wiki. Package
    contains the FAQ and the reference manual in html form.

  - renamed the term 'Encryption' in directives that
    actually refer to hashes. See CHANGES file for more
    details.

  - new directive SecXmlExternalEntity, default off

  - byte conversion issues on s390x when logging fixed.

  - many small issues fixed that were discovered by a
    Coverity scanner

  - updated reference manual

  - wrong time calculation when logging for some timezones
    fixed.

  - replaced time-measuring mechanism with finer granularity
    for measured request/answer phases. (Stopwatch remains
    for compat.)

  - cookie parser memory leak fix

  - parsing of quoted strings in multipart
    Content-Disposition headers fixed.

  - SDBM deadlock fix

  - @rsub memory leak fix

  - cookie separator code improvements

  - build failure fixes

  - compile time option --enable-htaccess-config (set)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=768293"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=789393"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=813190"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=822664"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.opensuse.org/opensuse-updates/2013-08/msg00020.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected apache2-mod_security2 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:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:apache2-mod_security2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:apache2-mod_security2-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:apache2-mod_security2-debugsource");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:12.3");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/08/05");
  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) 2014-2020 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 !~ "^(SUSE12\.3)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "12.3", 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:"SUSE12.3", reference:"apache2-mod_security2-2.7.5-2.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.3", reference:"apache2-mod_security2-debuginfo-2.7.5-2.4.1") ) flag++;
if ( rpm_check(release:"SUSE12.3", reference:"apache2-mod_security2-debugsource-2.7.5-2.4.1") ) 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, "apache2-mod_security2 / apache2-mod_security2-debuginfo / etc");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory 2013-9518.
#

include("compat.inc");

if (description)
{
  script_id(67363);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_xref(name:"FEDORA", value:"2013-9518");

  script_name(english:"Fedora 17 : mod_security-2.7.3-2.fc17 (2013-9518)");
  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:
"Fix NULL pointer dereference (DoS, crash) (CVE-2013-2765) and a
possible memory leak.

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=967615"
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2013-June/107810.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?56fdcc95"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected mod_security package."
  );
  script_set_attribute(attribute:"risk_factor", value:"High");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:mod_security");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:17");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/05/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/12");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2020 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:"^17([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 17.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:"FC17", reference:"mod_security-2.7.3-2.fc17")) 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, "mod_security");
}