Debian DSA-2836-1 : devscripts - arbitrary code execution

2014-01-06T00:00:00
ID DEBIAN_DSA-2836.NASL
Type nessus
Reporter This script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2014-01-06T00:00:00

Description

Several vulnerabilities have been discovered in uscan, a tool to scan upstream sites for new releases of packages, which is part of the devscripts package. An attacker controlling a website from which uscan would attempt to download a source tarball could execute arbitrary code with the privileges of the user running uscan.

The Common Vulnerabilities and Exposures project id CVE-2013-6888 has been assigned to identify them.

                                        
                                            #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2836. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(71802);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2013-6888", "CVE-2013-7325");
  script_bugtraq_id(64656);
  script_xref(name:"DSA", value:"2836");

  script_name(english:"Debian DSA-2836-1 : devscripts - arbitrary code execution");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Several vulnerabilities have been discovered in uscan, a tool to scan
upstream sites for new releases of packages, which is part of the
devscripts package. An attacker controlling a website from which uscan
would attempt to download a source tarball could execute arbitrary
code with the privileges of the user running uscan.

The Common Vulnerabilities and Exposures project id CVE-2013-6888 has
been assigned to identify them."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-6888"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/devscripts"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2014/dsa-2836"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the devscripts packages.

For the stable distribution (wheezy), these problems have been fixed
in version 2.12.6+deb7u2."
  );
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:debian:debian_linux:devscripts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/01/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/01/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/01/06");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  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:"Debian Local Security Checks");

  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:"7.0", prefix:"devscripts", reference:"2.12.6+deb7u2")) 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");