Ubuntu 10.04 LTS / 10.10 / 11.04 : subversion vulnerabilities (USN-1144-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-1144-1. 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(55107);
  script_version("1.10");
  script_cvs_date("Date: 2019/09/19 12:54:27");

  script_cve_id("CVE-2011-1752", "CVE-2011-1783", "CVE-2011-1921");
  script_bugtraq_id(48091);
  script_xref(name:"USN", value:"1144-1");

  script_name(english:"Ubuntu 10.04 LTS / 10.10 / 11.04 : subversion vulnerabilities (USN-1144-1)");
  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:
"Joe Schaefer discovered that the Subversion mod_dav_svn module for
Apache did not properly handle certain baselined WebDAV resource
requests. A remote attacker could use this flaw to cause the service
to crash, leading to a denial of service. (CVE-2011-1752)

Ivan Zhakov discovered that the Subversion mod_dav_svn module for
Apache did not properly handle certain requests. A remote attacker
could use this flaw to cause the service to consume all available
resources, leading to a denial of service. (CVE-2011-1783)

Kamesh Jayachandran discovered that the Subversion mod_dav_svn module
for Apache did not properly handle access control in certain
situations. A remote user could use this flaw to gain access to files
that would otherwise be unreadable. (CVE-2011-1921).

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/1144-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected libapache2-svn package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/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:canonical:ubuntu_linux:libapache2-svn");
  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:"2011/06/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2011/06/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/06/13");
  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:"libapache2-svn", pkgver:"1.6.6dfsg-2ubuntu1.3")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libapache2-svn", pkgver:"1.6.12dfsg-1ubuntu1.3")) flag++;
if (ubuntu_check(osver:"11.04", pkgname:"libapache2-svn", pkgver:"1.6.12dfsg-4ubuntu2.1")) 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, "libapache2-svn");
}