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nessusUbuntu Security Notice (C) 2004-2019 Canonical, Inc. / NASL script (C) 2006-2016 Tenable Network Security, Inc.UBUNTU_USN-23-1.NASL
HistoryJan 15, 2006 - 12:00 a.m.

Ubuntu 4.10 : apache2 vulnerability (USN-23-1)

2006-01-1500:00:00
Ubuntu Security Notice (C) 2004-2019 Canonical, Inc. / NASL script (C) 2006-2016 Tenable Network Security, Inc.
www.tenable.com
11

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS

0.966

Percentile

99.6%

Chintan Trivedi discovered a Denial of Service vulnerability in apache2. The field length limit was not enforced for certain malicious requests. This could allow a remote attacker who is able to send large amounts of data to a server to cause HTTP server instances to consume proportional amounts of memory, which can render the service unavailable.

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.

#%NASL_MIN_LEVEL 70300

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-23-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(20638);
  script_version("1.15");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2004-0942");
  script_xref(name:"USN", value:"23-1");

  script_name(english:"Ubuntu 4.10 : apache2 vulnerability (USN-23-1)");
  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:
"Chintan Trivedi discovered a Denial of Service vulnerability in
apache2. The field length limit was not enforced for certain malicious
requests. This could allow a remote attacker who is able to send large
amounts of data to a server to cause HTTP server instances to consume
proportional amounts of memory, which can render the service
unavailable.

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_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: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:"patch_publication_date", value:"2004/11/12");
  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) 2004-2019 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)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 4.10", "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:"4.10", pkgname:"apache2", pkgver:"2.0.50-12ubuntu4.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"apache2-common", pkgver:"2.0.50-12ubuntu4.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"apache2-doc", pkgver:"2.0.50-12ubuntu4.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"apache2-mpm-perchild", pkgver:"2.0.50-12ubuntu4.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"apache2-mpm-prefork", pkgver:"2.0.50-12ubuntu4.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"apache2-mpm-threadpool", pkgver:"2.0.50-12ubuntu4.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"apache2-mpm-worker", pkgver:"2.0.50-12ubuntu4.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"apache2-prefork-dev", pkgver:"2.0.50-12ubuntu4.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"apache2-threaded-dev", pkgver:"2.0.50-12ubuntu4.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"libapr0", pkgver:"2.0.50-12ubuntu4.1")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"libapr0-dev", pkgver:"2.0.50-12ubuntu4.1")) 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, "apache2 / apache2-common / apache2-doc / apache2-mpm-perchild / etc");
}
VendorProductVersionCPE
canonicalubuntu_linuxapache2p-cpe:/a:canonical:ubuntu_linux:apache2
canonicalubuntu_linuxapache2-commonp-cpe:/a:canonical:ubuntu_linux:apache2-common
canonicalubuntu_linuxapache2-docp-cpe:/a:canonical:ubuntu_linux:apache2-doc
canonicalubuntu_linuxapache2-mpm-perchildp-cpe:/a:canonical:ubuntu_linux:apache2-mpm-perchild
canonicalubuntu_linuxapache2-mpm-preforkp-cpe:/a:canonical:ubuntu_linux:apache2-mpm-prefork
canonicalubuntu_linuxapache2-mpm-threadpoolp-cpe:/a:canonical:ubuntu_linux:apache2-mpm-threadpool
canonicalubuntu_linuxapache2-mpm-workerp-cpe:/a:canonical:ubuntu_linux:apache2-mpm-worker
canonicalubuntu_linuxapache2-prefork-devp-cpe:/a:canonical:ubuntu_linux:apache2-prefork-dev
canonicalubuntu_linuxapache2-threaded-devp-cpe:/a:canonical:ubuntu_linux:apache2-threaded-dev
canonicalubuntu_linuxlibapr0p-cpe:/a:canonical:ubuntu_linux:libapr0
Rows per page:
1-10 of 121

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS

0.966

Percentile

99.6%