Debian DSA-2715-1 : puppet - code execution

2013-06-29T00:00:00
ID DEBIAN_DSA-2715.NASL
Type nessus
Reporter Tenable
Modified 2015-02-16T00:00:00

Description

It was discovered that puppet, a centralized configuration management system, did not correctly handle YAML payloads. A remote attacker could use a specially crafted payload to execute arbitrary code on the puppet master.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2715. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(67100);
  script_version("$Revision: 1.6 $");
  script_cvs_date("$Date: 2015/02/16 15:43:09 $");

  script_cve_id("CVE-2013-3567");
  script_bugtraq_id(60664);
  script_osvdb_id(94413);
  script_xref(name:"DSA", value:"2715");

  script_name(english:"Debian DSA-2715-1 : puppet - 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:
"It was discovered that puppet, a centralized configuration management
system, did not correctly handle YAML payloads. A remote attacker
could use a specially crafted payload to execute arbitrary code on the
puppet master."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze/puppet"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/puppet"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2013/dsa-2715"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the puppet packages.

For the oldstable distribution (squeeze), this problem will be fixed
in version 2.6.2-5+squeeze8.

For the stable distribution (wheezy), this problem has been fixed in
version 2.7.18-5."
  );
  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:ND/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:debian:debian_linux:puppet");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/06/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/06/29");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2015 Tenable Network Security, Inc.");
  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:"6.0", prefix:"puppet", reference:"2.6.2-5+squeeze8")) flag++;
if (deb_check(release:"6.0", prefix:"puppet-common", reference:"2.6.2-5+squeeze8")) flag++;
if (deb_check(release:"6.0", prefix:"puppet-el", reference:"2.6.2-5+squeeze8")) flag++;
if (deb_check(release:"6.0", prefix:"puppet-testsuite", reference:"2.6.2-5+squeeze8")) flag++;
if (deb_check(release:"6.0", prefix:"puppetmaster", reference:"2.6.2-5+squeeze8")) flag++;
if (deb_check(release:"6.0", prefix:"vim-puppet", reference:"2.6.2-5+squeeze8")) flag++;
if (deb_check(release:"7.0", prefix:"puppet", reference:"2.7.18-5")) flag++;
if (deb_check(release:"7.0", prefix:"puppet-common", reference:"2.7.18-5")) flag++;
if (deb_check(release:"7.0", prefix:"puppet-el", reference:"2.7.18-5")) flag++;
if (deb_check(release:"7.0", prefix:"puppet-testsuite", reference:"2.7.18-5")) flag++;
if (deb_check(release:"7.0", prefix:"puppetmaster", reference:"2.7.18-5")) flag++;
if (deb_check(release:"7.0", prefix:"puppetmaster-common", reference:"2.7.18-5")) flag++;
if (deb_check(release:"7.0", prefix:"puppetmaster-passenger", reference:"2.7.18-5")) flag++;
if (deb_check(release:"7.0", prefix:"vim-puppet", reference:"2.7.18-5")) 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");