Debian DLA-392-1 : roundcube security update

2016-01-19T00:00:00
ID DEBIAN_DLA-392.NASL
Type nessus
Reporter Tenable
Modified 2018-07-09T00:00:00

Description

High-Tech Bridge Security Research Lab discovered a path traversal vulnerability in a popular webmail client Roundcube. Vulnerability can be exploited to gain access to sensitive information and under certain circumstances to execute arbitrary code and totally compromise the vulnerable server.

The vulnerability exists due to insufficient sanitization of '_skin' HTTP POST parameter in '/index.php' script when changing between different skins of the web application. A remote authenticated attacker can use path traversal sequences (e.g. '../../') to load a new skin from arbitrary location on the system, readable by the webserver.

(sorry for first uploading a package with a wrong version 0.3.1-6+dab6u1)

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-392-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(87976);
  script_version("2.9");
  script_cvs_date("Date: 2018/07/09 12:26:57");

  script_cve_id("CVE-2015-8770");

  script_name(english:"Debian DLA-392-1 : roundcube security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"High-Tech Bridge Security Research Lab discovered a path traversal
vulnerability in a popular webmail client Roundcube. Vulnerability can
be exploited to gain access to sensitive information and under certain
circumstances to execute arbitrary code and totally compromise the
vulnerable server.

The vulnerability exists due to insufficient sanitization of '_skin'
HTTP POST parameter in '/index.php' script when changing between
different skins of the web application. A remote authenticated
attacker can use path traversal sequences (e.g. '../../') to load a
new skin from arbitrary location on the system, readable by the
webserver.

(sorry for first uploading a package with a wrong version
0.3.1-6+dab6u1)

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.debian.org/debian-lts-announce/2016/01/msg00016.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze-lts/roundcube"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:roundcube");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:roundcube-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:roundcube-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:roundcube-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:roundcube-sqlite");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/01/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/01/19");
  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:"6.0", prefix:"roundcube", reference:"0.3.1-6+deb6u1")) flag++;
if (deb_check(release:"6.0", prefix:"roundcube-core", reference:"0.3.1-6+deb6u1")) flag++;
if (deb_check(release:"6.0", prefix:"roundcube-mysql", reference:"0.3.1-6+deb6u1")) flag++;
if (deb_check(release:"6.0", prefix:"roundcube-pgsql", reference:"0.3.1-6+deb6u1")) flag++;
if (deb_check(release:"6.0", prefix:"roundcube-sqlite", reference:"0.3.1-6+deb6u1")) flag++;

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