Debian DSA-3562-1 : tardiff - security update

2016-05-03T00:00:00
ID DEBIAN_DSA-3562.NASL
Type nessus
Reporter This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-07-02T00:00:00

Description

Several vulnerabilities were discovered in tardiff, a tarball comparison tool. The Common Vulnerabilities and Exposures project identifies the following problems :

  • CVE-2015-0857 Rainer Mueller and Florian Weimer discovered that tardiff is prone to shell command injections via shell meta-characters in filenames in tar files or via shell meta-characters in the tar filename itself.

  • CVE-2015-0858 Florian Weimer discovered that tardiff uses predictable temporary directories for unpacking tarballs. A malicious user can use this flaw to overwrite files with permissions of the user running the tardiff command line tool.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-3562. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(90838);
  script_version("2.8");
  script_cvs_date("Date: 2018/11/10 11:49:37");

  script_cve_id("CVE-2015-0857", "CVE-2015-0858");
  script_xref(name:"DSA", value:"3562");

  script_name(english:"Debian DSA-3562-1 : tardiff - security update");
  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 were discovered in tardiff, a tarball
comparison tool. The Common Vulnerabilities and Exposures project
identifies the following problems :

  - CVE-2015-0857
    Rainer Mueller and Florian Weimer discovered that
    tardiff is prone to shell command injections via shell
    meta-characters in filenames in tar files or via shell
    meta-characters in the tar filename itself.

  - CVE-2015-0858
    Florian Weimer discovered that tardiff uses predictable
    temporary directories for unpacking tarballs. A
    malicious user can use this flaw to overwrite files with
    permissions of the user running the tardiff command line
    tool."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2015-0857"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2015-0858"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/tardiff"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2016/dsa-3562"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the tardiff packages.

For the stable distribution (jessie), these problems have been fixed
in version 0.1-2+deb8u2."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  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:N/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:tardiff");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/05/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/05/03");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2018 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:"8.0", prefix:"tardiff", reference:"0.1-2+deb8u2")) 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");