Debian DSA-2213-1 : x11-xserver-utils - missing input sanitization

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2213. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(53340);
  script_version("1.15");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/02/28");

  script_cve_id("CVE-2011-0465");
  script_bugtraq_id(47189);
  script_xref(name:"DSA", value:"2213");
  script_xref(name:"IAVA", value:"2017-A-0098-S");

  script_name(english:"Debian DSA-2213-1 : x11-xserver-utils - missing input sanitization");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
  script_set_attribute(attribute:"description", value:
"Sebastian Krahmer discovered that the xrdb utility of
x11-xserver-utils, a X server resource database utility, is not
properly filtering crafted hostnames. This allows a remote attacker to
execute arbitrary code with root privileges given that either remote
logins via xdmcp are allowed or the attacker is able to place a rogue
DHCP server into the victims network.");
  script_set_attribute(attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=621423");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/squeeze/x11-xserver-utils");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2011/dsa-2213");
  script_set_attribute(attribute:"solution", value:
"Upgrade the x11-xserver-utils packages.

For the oldstable distribution (lenny), this problem has been fixed in
version 7.3+6.

For the stable distribution (squeeze), this problem has been fixed in
version 7.5+3.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  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:"patch_publication_date", value:"2011/04/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/04/11");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:x11-xserver-utils");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Debian Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2011-2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"5.0", prefix:"x11-xserver-utils", reference:"7.3+6")) flag++;
if (deb_check(release:"6.0", prefix:"x11-xserver-utils", reference:"7.5+3")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");