GLSA-200706-03 : ELinks: User-assisted execution of arbitrary code

2007-06-07T00:00:00
ID GENTOO_GLSA-200706-03.NASL
Type nessus
Reporter Tenable
Modified 2015-04-13T00:00:00

Description

The remote host is affected by the vulnerability described in GLSA-200706-03 (ELinks: User-assisted execution of arbitrary code)

Arnaud Giersch discovered that the 'add_filename_to_string()' function     in file intl/gettext/loadmsgcat.c uses an untrusted relative path,     allowing for a format string attack with a malicious .po file.

Impact :

A local attacker could entice a user to run ELinks in a specially     crafted directory environment containing a malicious '.po' file,     possibly resulting in the execution of arbitrary code with the     privileges of the user running ELinks.

Workaround :

There is no known workaround at this time.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 200706-03.
#
# The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

include("compat.inc");

if (description)
{
  script_id(25453);
  script_version("$Revision: 1.11 $");
  script_cvs_date("$Date: 2015/04/13 13:56:53 $");

  script_cve_id("CVE-2007-2027");
  script_osvdb_id(35668);
  script_xref(name:"GLSA", value:"200706-03");

  script_name(english:"GLSA-200706-03 : ELinks: User-assisted execution of arbitrary code");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-200706-03
(ELinks: User-assisted execution of arbitrary code)

    Arnaud Giersch discovered that the 'add_filename_to_string()' function
    in file intl/gettext/loadmsgcat.c uses an untrusted relative path,
    allowing for a format string attack with a malicious .po file.
  
Impact :

    A local attacker could entice a user to run ELinks in a specially
    crafted directory environment containing a malicious '.po' file,
    possibly resulting in the execution of arbitrary code with the
    privileges of the user running ELinks.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/200706-03"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All ELinks users should upgrade to the latest version:
    # emerge --sync
    # emerge --ask --oneshot --verbose '>=www-client/elinks-0.11.2-r1'"
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P");
  script_cwe_id(134);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:elinks");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2007/06/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/06/07");
  script_set_attribute(attribute:"vuln_publication_date", value:"2007/04/05");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2015 Tenable Network Security, Inc.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"www-client/elinks", unaffected:make_list("ge 0.11.2-r1"), vulnerable:make_list("lt 0.11.2-r1"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:qpkg_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ELinks");
}