Ubuntu 4.10 / 5.04 : apache2 vulnerabilities (USN-160-1)

2006-01-15T00:00:00
ID UBUNTU_USN-160-1.NASL
Type nessus
Reporter Tenable
Modified 2016-05-27T00:00:00

Description

Marc Stern discovered a buffer overflow in the SSL module's certificate revocation list (CRL) handler. If Apache is configured to use a malicious CRL, this could possibly lead to a server crash or arbitrary code execution with the privileges of the Apache web server. (CAN-2005-1268)

Watchfire discovered that Apache insufficiently verified the 'Transfer-Encoding' and 'Content-Length' headers when acting as an HTTP proxy. By sending a specially crafted HTTP request, a remote attacker who is authorized to use the proxy could exploit this to bypass web application firewalls, poison the HTTP proxy cache, and conduct cross-site scripting attacks against other proxy users. (CAN-2005-2088).

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.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-160-1. 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(20565);
  script_version("$Revision: 1.13 $");
  script_cvs_date("$Date: 2016/05/27 14:21:16 $");

  script_cve_id("CVE-2005-1268", "CVE-2005-2088");
  script_bugtraq_id(14106, 14366);
  script_xref(name:"USN", value:"160-1");

  script_name(english:"Ubuntu 4.10 / 5.04 : apache2 vulnerabilities (USN-160-1)");
  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:
"Marc Stern discovered a buffer overflow in the SSL module's
certificate revocation list (CRL) handler. If Apache is configured to
use a malicious CRL, this could possibly lead to a server crash or
arbitrary code execution with the privileges of the Apache web server.
(CAN-2005-1268)

Watchfire discovered that Apache insufficiently verified the
'Transfer-Encoding' and 'Content-Length' headers when acting as an
HTTP proxy. By sending a specially crafted HTTP request, a remote
attacker who is authorized to use the proxy could exploit this to
bypass web application firewalls, poison the HTTP proxy cache, and
conduct cross-site scripting attacks against other proxy users.
(CAN-2005-2088).

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:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:ND/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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-perchild");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-prefork");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-threadpool");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-mpm-worker");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-prefork-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-threaded-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:apache2-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libapr0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libapr0-dev");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:4.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:5.04");

  script_set_attribute(attribute:"patch_publication_date", value:"2005/08/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/01/15");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2005-2016 Canonical, Inc. / NASL script (C) 2006-2016 Tenable Network Security, Inc.");
  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 (! ereg(pattern:"^(4\.10|5\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 4.10 / 5.04", "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:"4.10", pkgname:"apache2", pkgver:"2.0.50-12ubuntu4.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"apache2-common", pkgver:"2.0.50-12ubuntu4.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"apache2-doc", pkgver:"2.0.50-12ubuntu4.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"apache2-mpm-perchild", pkgver:"2.0.50-12ubuntu4.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"apache2-mpm-prefork", pkgver:"2.0.50-12ubuntu4.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"apache2-mpm-threadpool", pkgver:"2.0.50-12ubuntu4.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"apache2-mpm-worker", pkgver:"2.0.50-12ubuntu4.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"apache2-prefork-dev", pkgver:"2.0.50-12ubuntu4.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"apache2-threaded-dev", pkgver:"2.0.50-12ubuntu4.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"libapr0", pkgver:"2.0.50-12ubuntu4.3")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"libapr0-dev", pkgver:"2.0.50-12ubuntu4.3")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"apache2", pkgver:"2.0.53-5ubuntu5.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"apache2-common", pkgver:"2.0.53-5ubuntu5.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"apache2-doc", pkgver:"2.0.53-5ubuntu5.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"apache2-mpm-perchild", pkgver:"2.0.53-5ubuntu5.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"apache2-mpm-prefork", pkgver:"2.0.53-5ubuntu5.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"apache2-mpm-threadpool", pkgver:"2.0.53-5ubuntu5.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"apache2-mpm-worker", pkgver:"2.0.53-5ubuntu5.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"apache2-prefork-dev", pkgver:"2.0.53-5ubuntu5.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"apache2-threaded-dev", pkgver:"2.0.53-5ubuntu5.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"apache2-utils", pkgver:"2.0.53-5ubuntu5.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"libapr0", pkgver:"2.0.53-5ubuntu5.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"libapr0-dev", pkgver:"2.0.53-5ubuntu5.2")) 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, "apache2 / apache2-common / apache2-doc / apache2-mpm-perchild / etc");
}