Ubuntu 10.04 LTS / 11.10 / 12.04 LTS / 12.10 : tomcat6, tomcat7 vulnerabilities (USN-1685-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-1685-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(63535);
  script_version("1.15");
  script_cvs_date("Date: 2019/09/19 12:54:28");

  script_cve_id("CVE-2012-3546", "CVE-2012-4431", "CVE-2012-4534");
  script_xref(name:"USN", value:"1685-1");

  script_name(english:"Ubuntu 10.04 LTS / 11.10 / 12.04 LTS / 12.10 : tomcat6, tomcat7 vulnerabilities (USN-1685-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that Tomcat incorrectly performed certain security
constraint checks in the FORM authenticator. A remote attacker could
possibly use this flaw with a specially crafted URI to bypass security
constraint checks. This issue only affected Ubuntu 10.04 LTS, Ubuntu
11.10 and Ubuntu 12.04 LTS. (CVE-2012-3546)

It was discovered that Tomcat incorrectly handled requests that lack a
session identifier. A remote attacker could possibly use this flaw to
bypass the cross-site request forgery protection. (CVE-2012-4431)

It was discovered that Tomcat incorrectly handled sendfile and HTTPS
when the NIO connector is used. A remote attacker could use this flaw
to cause Tomcat to stop responsing, resulting in a denial of service.
This issue only affected Ubuntu 10.04 LTS, Ubuntu 11.10 and Ubuntu
12.04 LTS. (CVE-2012-4534).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu 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://usn.ubuntu.com/1685-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected libtomcat6-java and / or libtomcat7-java packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libtomcat6-java");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libtomcat7-java");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:11.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:12.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:12.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/12/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/01/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/01/15");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2013-2019 Canonical, Inc. / NASL script (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(10\.04|11\.10|12\.04|12\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 10.04 / 11.10 / 12.04 / 12.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"10.04", pkgname:"libtomcat6-java", pkgver:"6.0.24-2ubuntu1.12")) flag++;
if (ubuntu_check(osver:"11.10", pkgname:"libtomcat6-java", pkgver:"6.0.32-5ubuntu1.4")) flag++;
if (ubuntu_check(osver:"12.04", pkgname:"libtomcat6-java", pkgver:"6.0.35-1ubuntu3.2")) flag++;
if (ubuntu_check(osver:"12.10", pkgname:"libtomcat7-java", pkgver:"7.0.30-0ubuntu1.1")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libtomcat6-java / libtomcat7-java");
}