Vulnerabilities > CVE-2005-2794 - Remote Denial Of Service vulnerability in Squid Proxy Aborted Requests

#%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-183-1. 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(20594);
  script_version("1.16");
  script_cvs_date("Date: 2019/08/02 13:33:00");

  script_cve_id("CVE-2005-2794", "CVE-2005-2796");
  script_xref(name:"USN", value:"183-1");

  script_name(english:"Ubuntu 4.10 / 5.04 : squid vulnerabilities (USN-183-1)");
  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:
"A Denial of Service vulnerability was discovered in the handling of
aborted requests. A remote attacker could exploit this to crash Squid
by sending specially crafted requests. (CAN-2005-2794)

Alex Masterov discovered a Denial of Service vulnerability in the
sslConnectTimeout() function. By sending specially crafted SSL
requests, a remote attacker could exploit this to crash Squid.
(CAN-2005-2796).

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:squid");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:squid-cgi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:squid-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:squidclient");
  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:"2005/09/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/01/15");
  script_set_attribute(attribute:"vuln_publication_date", value:"2005/09/01");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2005-2019 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|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:"squid", pkgver:"2.5.5-6ubuntu0.10")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"squid-cgi", pkgver:"2.5.5-6ubuntu0.10")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"squid-common", pkgver:"2.5.5-6ubuntu0.10")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"squidclient", pkgver:"2.5.5-6ubuntu0.10")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"squid", pkgver:"2.5.8-3ubuntu1.3")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"squid-cgi", pkgver:"2.5.8-3ubuntu1.3")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"squid-common", pkgver:"2.5.8-3ubuntu1.3")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"squidclient", pkgver:"2.5.8-3ubuntu1.3")) 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, "squid / squid-cgi / squid-common / squidclient");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2018 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

include("compat.inc");

if (description)
{
  script_id(21386);
  script_version("1.16");
  script_cvs_date("Date: 2019/08/02 13:32:36");

  script_cve_id("CVE-2005-2794");
  script_bugtraq_id(14761);
  script_xref(name:"Secunia", value:"16708");

  script_name(english:"FreeBSD : squid -- Possible Denial Of Service Vulnerability in store.c (0c0dc409-1c5e-11da-92ce-0048543d60ce)");
  script_summary(english:"Checks for updated package in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote FreeBSD host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The squid patches page notes :

Squid crashes with the above assertion failure [assertion failed :
store.c:523: 'e->store_status == STORE_PENDING'] in certain conditions
involving aborted requests."
  );
  # http://www.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE10-STORE_PENDING
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?12ff276c"
  );
  # http://www.squid-cache.org/bugs/show_bug.cgi?id=1368
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.squid-cache.org/show_bug.cgi?id=1368"
  );
  # https://vuxml.freebsd.org/freebsd/0c0dc409-1c5e-11da-92ce-0048543d60ce.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?5606dd4a"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected package.");
  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:U/RL:OF/RC:ND");
  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:freebsd:freebsd:squid");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2005/08/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2005/09/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/05/13");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2006-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"FreeBSD Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


include("audit.inc");
include("freebsd_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (pkg_test(save_report:TRUE, pkg:"squid<2.5.10_5")) flag++;

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

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# This plugin text was extracted from SuSE Security Advisory SUSE-SA:2005:053
#


if ( ! defined_func("bn_random") ) exit(0);

include("compat.inc");

if(description)
{
 script_id(19932);
 script_version ("1.8");
 
 name["english"] = "SUSE-SA:2005:053: squid";
 
 script_name(english:name["english"]);
 
 script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a vendor-supplied security patch" );
 script_set_attribute(attribute:"description", value:
"The remote host is missing the patch for the advisory SUSE-SA:2005:053 (squid).


This update of the Squid web-proxy fixes two remotely exploitable denial
of service vulnerabilities.

One can be triggered by aborting a request (CVE-2005-2794) due to a faulty
assertion.

The other one occurs in sslConnectTimeout while handling malformated
requests (CVE-2005-2796).

The latter one does not affect SUSE LINUX 9.3.

2) Solution or Workaround

There are no workarounds known.

3) Special Instructions and Notes

Please restart the Squid web-proxy after the update.

4) Package Location and Checksums

The preferred method for installing security updates is to use the YaST
Online Update (YOU) tool. YOU detects which updates are required and
automatically performs the necessary steps to verify and install them.
Alternatively, download the update packages for your distribution manually
and verify their integrity by the methods listed in Section 6 of this
announcement. Then install the packages using the command

rpm -Fhv <file.rpm>

to apply the update, replacing <file.rpm> with the filename of the
downloaded RPM package." );
 script_set_attribute(attribute:"solution", value:
"http://www.suse.de/security/advisories/2005_53_squid.html" );
 script_set_attribute(attribute:"risk_factor", value:"Medium" );



 script_set_attribute(attribute:"plugin_publication_date", value: "2005/10/05");
 script_end_attributes();

 
 summary["english"] = "Check for the version of the squid package";
 script_summary(english:summary["english"]);
 
 script_category(ACT_GATHER_INFO);
 
 script_copyright(english:"This script is Copyright (C) 2005-2019 Tenable Network Security, Inc.");
 family["english"] = "SuSE Local Security Checks";
 script_family(english:family["english"]);
 
 script_dependencies("ssh_get_info.nasl");
 script_require_keys("Host/SuSE/rpm-list");
 exit(0);
}

include("rpm.inc");
if ( rpm_check( reference:"squid-2.5.STABLE3-126", release:"SUSE9.0") )
{
 security_warning(0);
 exit(0);
}
if ( rpm_check( reference:"squid-2.5.STABLE5-42.41", release:"SUSE9.1") )
{
 security_warning(0);
 exit(0);
}
if ( rpm_check( reference:"squid-2.5.STABLE6-6.15", release:"SUSE9.2") )
{
 security_warning(0);
 exit(0);
}
if ( rpm_check( reference:"squid-2.5.STABLE9-4.4", release:"SUSE9.3") )
{
 security_warning(0);
 exit(0);
}

#%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandrake Linux Security Advisory MDKSA-2005:162. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(19917);
  script_version ("1.17");
  script_cvs_date("Date: 2019/08/02 13:32:48");

  script_cve_id("CVE-2005-2794", "CVE-2005-2796");
  script_xref(name:"MDKSA", value:"2005:162");

  script_name(english:"Mandrake Linux Security Advisory : squid (MDKSA-2005:162)");
  script_summary(english:"Checks rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Mandrake Linux host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Two vulnerabilities were recently discovered in squid :

The first is a DoS possible via certain aborted requests that trigger
an assertion error related to 'STOP_PENDING' (CVE-2005-2794).

The second is a DoS caused by certain crafted requests and SSL
timeouts (CVE-2005-2796).

The updated packages have been patched to address these issues."
  );
  script_set_attribute(attribute:"solution", value:"Update the affected squid package.");
  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:mandriva:linux:squid");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:10.1");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/o:mandrakesoft:mandrake_linux:le2005");

  script_set_attribute(attribute:"patch_publication_date", value:"2005/09/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2005/10/05");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2005-2019 Tenable Network Security, Inc.");
  script_family(english:"Mandriva Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);


flag = 0;
if (rpm_check(release:"MDK10.1", reference:"squid-2.5.STABLE9-1.3.101mdk", yank:"mdk")) flag++;

if (rpm_check(release:"MDK10.2", reference:"squid-2.5.STABLE9-1.3.102mdk", yank:"mdk")) flag++;


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

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 200509-06.
#
# The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

include("compat.inc");

if (description)
{
  script_id(19671);
  script_version("1.13");
  script_cvs_date("Date: 2019/08/02 13:32:42");

  script_cve_id("CVE-2005-2794", "CVE-2005-2796");
  script_xref(name:"GLSA", value:"200509-06");

  script_name(english:"GLSA-200509-06 : Squid: Denial of Service vulnerabilities");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-200509-06
(Squid: Denial of Service vulnerabilities)

    Certain malformed requests result in a segmentation fault in the
    sslConnectTimeout function, handling of other certain requests trigger
    assertion failures.
  
Impact :

    By performing malformed requests an attacker could cause Squid to crash
    by triggering an assertion failure or invalid memory reference.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.squid-cache.org/Versions/v2/2.5/bugs/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/200509-06"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All Squid users should upgrade to the latest version:
    # emerge --sync
    # emerge --ask --oneshot --verbose '>=net-proxy/squid-2.5.10-r2'"
  );
  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:gentoo:linux:squid");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2005/09/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2005/09/12");
  script_set_attribute(attribute:"vuln_publication_date", value:"2005/09/01");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2005-2019 Tenable Network Security, Inc.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"net-proxy/squid", unaffected:make_list("ge 2.5.10-r2"), vulnerable:make_list("lt 2.5.10-r2"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:qpkg_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "Squid");
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2005:766. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(19713);
  script_version ("1.25");
  script_cvs_date("Date: 2019/10/25 13:36:11");

  script_cve_id("CVE-2004-2479", "CVE-2005-2794", "CVE-2005-2796");
  script_xref(name:"RHSA", value:"2005:766");

  script_name(english:"RHEL 2.1 / 3 / 4 : squid (RHSA-2005:766)");
  script_summary(english:"Checks the rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An updated Squid package that fixes security issues is now available.

This update has been rated as having important security impact by the
Red Hat Security Response Team.

Squid is a full-featured Web proxy cache.

A bug was found in the way Squid displays error messages. A remote
attacker could submit a request containing an invalid hostname which
would result in Squid displaying a previously used error message. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CVE-2004-2479 to this issue.

Two denial of service bugs were found in the way Squid handles
malformed requests. A remote attacker could submit a specially crafted
request to Squid that would cause the server to crash. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
names CVE-2005-2794 and CVE-2005-2796 to these issues.

Please note that CVE-2005-2796 does not affect Red Hat Enterprise
Linux 2.1

Users of Squid should upgrade to this updated package that contains
backported patches, and is not vulnerable to these issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2004-2479"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-2794"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-2796"
  );
  # http://www.squid-cache.org/bugs/show_bug.cgi?id=1143
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.squid-cache.org/show_bug.cgi?id=1143"
  );
  # http://www.squid-cache.org/bugs/show_bug.cgi?id=1368
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.squid-cache.org/show_bug.cgi?id=1368"
  );
  # http://www.squid-cache.org/bugs/show_bug.cgi?id=1325
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.squid-cache.org/show_bug.cgi?id=1325"
  );
  # http://www.squid-cache.org/bugs/show_bug.cgi?id=1355
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.squid-cache.org/show_bug.cgi?id=1355"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2005:766"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected squid package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:squid");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:2.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:3");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:4");

  script_set_attribute(attribute:"vuln_publication_date", value:"2004/12/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2005/09/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2005/09/17");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2005-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^(2\.1|3|4)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 2.1 / 3.x / 4.x", "Red Hat " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) 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$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2005:766";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"squid-2.4.STABLE7-1.21as.10")) flag++;

  if (rpm_check(release:"RHEL3", reference:"squid-2.5.STABLE3-6.3E.14")) flag++;

  if (rpm_check(release:"RHEL4", reference:"squid-2.5.STABLE6-3.4E.11")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "squid");
  }
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2005:766 and 
# CentOS Errata and Security Advisory 2005:766 respectively.
#

include("compat.inc");

if (description)
{
  script_id(21855);
  script_version("1.19");
  script_cvs_date("Date: 2019/10/25 13:36:02");

  script_cve_id("CVE-2004-2479", "CVE-2005-2794", "CVE-2005-2796");
  script_xref(name:"RHSA", value:"2005:766");

  script_name(english:"CentOS 3 / 4 : squid (CESA-2005:766)");
  script_summary(english:"Checks rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote CentOS host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An updated Squid package that fixes security issues is now available.

This update has been rated as having important security impact by the
Red Hat Security Response Team.

Squid is a full-featured Web proxy cache.

A bug was found in the way Squid displays error messages. A remote
attacker could submit a request containing an invalid hostname which
would result in Squid displaying a previously used error message. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CVE-2004-2479 to this issue.

Two denial of service bugs were found in the way Squid handles
malformed requests. A remote attacker could submit a specially crafted
request to Squid that would cause the server to crash. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
names CVE-2005-2794 and CVE-2005-2796 to these issues.

Please note that CVE-2005-2796 does not affect Red Hat Enterprise
Linux 2.1

Users of Squid should upgrade to this updated package that contains
backported patches, and is not vulnerable to these issues."
  );
  # https://lists.centos.org/pipermail/centos-announce/2005-September/012164.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?ec5294a6"
  );
  # https://lists.centos.org/pipermail/centos-announce/2005-September/012165.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?2d2d8c91"
  );
  # https://lists.centos.org/pipermail/centos-announce/2005-September/012166.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?694bcc7b"
  );
  # https://lists.centos.org/pipermail/centos-announce/2005-September/012167.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?8caab0d4"
  );
  # https://lists.centos.org/pipermail/centos-announce/2005-September/012172.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?1ca177e0"
  );
  # https://lists.centos.org/pipermail/centos-announce/2005-September/012173.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?98a925a9"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected squid package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:squid");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:3");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:4");

  script_set_attribute(attribute:"vuln_publication_date", value:"2004/12/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2005/09/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/07/03");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2006-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"CentOS Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^(3|4)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 3.x / 4.x", "CentOS " + os_ver);

if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);


flag = 0;
if (rpm_check(release:"CentOS-3", reference:"squid-2.5.STABLE3-6.3E.14")) flag++;

if (rpm_check(release:"CentOS-4", reference:"squid-2.5.STABLE6-3.4E.11")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "squid");
}

#%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-809. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(19684);
  script_version("1.21");
  script_cvs_date("Date: 2019/08/02 13:32:19");

  script_cve_id("CVE-2005-2794", "CVE-2005-2796");
  script_xref(name:"DSA", value:"809");

  script_name(english:"Debian DSA-809-2 : squid - several vulnerabilities");
  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:
"Certain aborted requests that trigger an assertion in squid, the
popular WWW proxy cache, may allow remote attackers to cause a denial
of service.  This update also fixes a regression caused by DSA 751.
For completeness below is the original advisory text :

  Several vulnerabilities have been discovered in Squid, the popular
  WWW proxy cache. The Common Vulnerabilities and Exposures project
  identifies the following problems :

    - CAN-2005-2794
      Certain aborted requests that trigger an assert may
      allow remote attackers to cause a denial of service.

    - CAN-2005-2796

      Specially crafted requests can cause a denial of
      service."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=320035"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.debian.org/security/2005/dsa-809"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the squid package.

For the oldstable distribution (woody) this problem has been fixed in
version 2.4.6-2woody10.

For the stable distribution (sarge) these problems have been fixed in
version 2.5.9-10sarge1."
  );
  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:debian:debian_linux:squid");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:3.1");

  script_set_attribute(attribute:"plugin_publication_date", value:"2005/09/13");
  script_set_attribute(attribute:"vuln_publication_date", value:"2005/09/01");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2005-2019 Tenable Network Security, Inc.");
  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:"3.0", prefix:"squid", reference:"2.4.6-2woody10")) flag++;
if (deb_check(release:"3.0", prefix:"squid-cgi", reference:"2.4.6-2woody10")) flag++;
if (deb_check(release:"3.0", prefix:"squidclient", reference:"2.4.6-2woody10")) flag++;
if (deb_check(release:"3.1", prefix:"squid", reference:"2.5.9-10sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"squid-cgi", reference:"2.5.9-10sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"squid-common", reference:"2.5.9-10sarge1")) flag++;
if (deb_check(release:"3.1", prefix:"squidclient", reference:"2.5.9-10sarge1")) 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");