Vulnerabilities > CVE-2005-0173 - Authentication Bypass vulnerability in Squid Proxy squid_ldap_auth

#%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-2005:060. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(17176);
  script_version ("1.22");
  script_cvs_date("Date: 2019/10/25 13:36:10");

  script_cve_id("CVE-2005-0094", "CVE-2005-0095", "CVE-2005-0096", "CVE-2005-0097", "CVE-2005-0173", "CVE-2005-0174", "CVE-2005-0175", "CVE-2005-0211", "CVE-2005-0241");
  script_xref(name:"RHSA", value:"2005:060");

  script_name(english:"RHEL 4 : squid (RHSA-2005:060)");
  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 several 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 buffer overflow flaw was found in the Gopher relay parser. This bug
could allow a remote Gopher server to crash the Squid proxy that reads
data from it. Although Gopher servers are now quite rare, a malicious
webpage (for example) could redirect or contain a frame pointing to an
attacker's malicious gopher server. The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the name CVE-2005-0094
to this issue.

An integer overflow flaw was found in the WCCP message parser. It is
possible to crash the Squid server if an attacker is able to send a
malformed WCCP message with a spoofed source address matching Squid's
'home router'. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CVE-2005-0095 to this issue.

A memory leak was found in the NTLM fakeauth_auth helper. It is
possible that an attacker could place the Squid server under high
load, causing the NTML fakeauth_auth helper to consume a large amount
of memory, resulting in a denial of service. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CVE-2005-0096 to this issue.

A NULL pointer de-reference bug was found in the NTLM fakeauth_auth
helper. It is possible for an attacker to send a malformed NTLM type 3
message, causing the Squid server to crash. The Common Vulnerabilities
and Exposures project (cve.mitre.org) has assigned the name
CVE-2005-0097 to this issue.

A username validation bug was found in squid_ldap_auth. It is possible
for a username to be padded with spaces, which could allow a user to
bypass explicit access control rules or confuse accounting. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CVE-2005-0173 to this issue.

The way Squid handles HTTP responses was found to need strengthening.
It is possible that a malicious Web server could send a series of HTTP
responses in such a way that the Squid cache could be poisoned,
presenting users with incorrect webpages. The Common Vulnerabilities
and Exposures project (cve.mitre.org) has assigned the names
CVE-2005-0174 and CVE-2005-0175 to these issues.

A bug was found in the way Squid handled oversized HTTP response
headers. It is possible that a malicious Web server could send a
specially crafted HTTP header which could cause the Squid cache to be
poisoned, presenting users with incorrect webpages. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CVE-2005-0241 to this issue.

A buffer overflow bug was found in the WCCP message parser. It is
possible that an attacker could send a malformed WCCP message which
could crash the Squid server or execute arbitrary code. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CVE-2005-0211 to this issue.

Users of Squid should upgrade to this updated package, which contains
backported patches, and is not vulnerable to these issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0094"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0095"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0096"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0097"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0173"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0174"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0175"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0211"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0241"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.squid-cache.org/Advisories/SQUID-2005_1.txt"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.squid-cache.org/Advisories/SQUID-2005_2.txt"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.squid-cache.org/Advisories/SQUID-2005_3.txt"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.squid-cache.org/Versions/v2/2.5/bugs/#"
  );
  # http://www.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE7-ldap_spaces
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?96864d1c"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2005:060"
  );
  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:P/A:P");

  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:4");

  script_set_attribute(attribute:"vuln_publication_date", value:"2005/01/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2005/02/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2005/02/22");
  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:"^4([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 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-2005:060";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      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:"RHEL4", reference:"squid-2.5.STABLE6-3.4E.3")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      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-2005:061. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(16384);
  script_version ("1.24");
  script_cvs_date("Date: 2019/10/25 13:36:10");

  script_cve_id("CVE-2005-0094", "CVE-2005-0095", "CVE-2005-0096", "CVE-2005-0097", "CVE-2005-0173", "CVE-2005-0174", "CVE-2005-0175", "CVE-2005-0211", "CVE-2005-0241");
  script_bugtraq_id(12276);
  script_xref(name:"RHSA", value:"2005:061");

  script_name(english:"RHEL 2.1 / 3 : squid (RHSA-2005:061)");
  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 several security issues is now
available.

Squid is a full-featured Web proxy cache.

A buffer overflow flaw was found in the Gopher relay parser. This bug
could allow a remote Gopher server to crash the Squid proxy that reads
data from it. Although Gopher servers are now quite rare, a malicious
web page (for example) could redirect or contain a frame pointing to
an attacker's malicious gopher server. The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the name CVE-2005-0094
to this issue.

An integer overflow flaw was found in the WCCP message parser. It is
possible to crash the Squid server if an attacker is able to send a
malformed WCCP message with a spoofed source address matching Squid's
'home router'. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CVE-2005-0095 to this issue.

A memory leak was found in the NTLM fakeauth_auth helper. It is
possible that an attacker could place the Squid server under high
load, causing the NTML fakeauth_auth helper to consume a large amount
of memory, resulting in a denial of service. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CVE-2005-0096 to this issue.

A NULL pointer de-reference bug was found in the NTLM fakeauth_auth
helper. It is possible for an attacker to send a malformed NTLM type 3
message, causing the Squid server to crash. The Common Vulnerabilities
and Exposures project (cve.mitre.org) has assigned the name
CVE-2005-0097 to this issue.

A username validation bug was found in squid_ldap_auth. It is possible
for a username to be padded with spaces, which could allow a user to
bypass explicit access control rules or confuse accounting. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CVE-2005-0173 to this issue.

The way Squid handles HTTP responses was found to need strengthening.
It is possible that a malicious web server could send a series of HTTP
responses in such a way that the Squid cache could be poisoned,
presenting users with incorrect webpages. The Common Vulnerabilities
and Exposures project (cve.mitre.org) has assigned the names
CVE-2005-0174 and CVE-2005-0175 to these issues.

A bug was found in the way Squid handled oversized HTTP response
headers. It is possible that a malicious web server could send a
specially crafted HTTP header which could cause the Squid cache to be
poisoned, presenting users with incorrect webpages. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CVE-2005-0241 to this issue.

A buffer overflow bug was found in the WCCP message parser. It is
possible that an attacker could send a malformed WCCP message which
could crash the Squid server or execute arbitrary code. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CVE-2005-0211 to this issue.

Users of Squid should upgrade to this updated package, which contains
backported patches, and is not vulnerable to these issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0094"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0095"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0096"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0097"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0173"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0174"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0175"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0211"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2005-0241"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.squid-cache.org/Advisories/SQUID-2005_1.txt"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.squid-cache.org/Advisories/SQUID-2005_2.txt"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.squid-cache.org/Advisories/SQUID-2005_3.txt"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.squid-cache.org/Versions/v2/2.5/bugs/#"
  );
  # http://www.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE7-ldap_spaces
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?96864d1c"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2005:061"
  );
  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:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  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: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:"vuln_publication_date", value:"2005/01/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2005/02/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2005/02/14");
  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)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 2.1 / 3.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-2005:061";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      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.4")) flag++;

  if (rpm_check(release:"RHEL3", reference:"squid-2.5.STABLE3-6.3E.7")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      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 Mandrake Linux Security Advisory MDKSA-2005:034. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(16377);
  script_version ("1.17");
  script_cvs_date("Date: 2019/08/02 13:32:47");

  script_cve_id("CVE-2005-0173", "CVE-2005-0174", "CVE-2005-0175", "CVE-2005-0211");
  script_xref(name:"MDKSA", value:"2005:034");

  script_name(english:"Mandrake Linux Security Advisory : squid (MDKSA-2005:034)");
  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:
"More vulnerabilities were discovered in the squid server :

The LDAP handling of search filters was inadequate which could be
abused to allow logins using severial variants of a single login name,
possibly bypassing explicit access controls (CVE-2005-0173).

Minor problems in the HTTP header parsing code that could be used for
cache poisoning (CVE-2005-0174 and CVE-2005-0175).

A buffer overflow in the WCCP handling code allowed remote attackers
to cause a Denial of Service and could potentially allow for the
execution of arbitrary code by using a long WCCP packet.

The updated packages have been patched to prevent these problems."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.squid-cache.org/Advisories/SQUID-2005_3.txt"
  );
  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:P/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:10.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:10.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:9.2");

  script_set_attribute(attribute:"patch_publication_date", value:"2005/02/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2005/02/11");
  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:"MDK10.0", reference:"squid-2.5.STABLE4-2.4.100mdk", yank:"mdk")) flag++;

if (rpm_check(release:"MDK10.1", reference:"squid-2.5.STABLE6-2.3.101mdk", yank:"mdk")) flag++;

if (rpm_check(release:"MDK9.2", reference:"squid-2.5.STABLE3-3.6.92mdk", yank:"mdk")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(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 Ubuntu Security Notice USN-77-1. 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(20699);
  script_version("1.14");
  script_cvs_date("Date: 2019/08/02 13:33:00");

  script_cve_id("CVE-2005-0173", "CVE-2005-0174", "CVE-2005-0175", "CVE-2005-0211");
  script_xref(name:"USN", value:"77-1");

  script_name(english:"Ubuntu 4.10 : squid vulnerabilities (USN-77-1)");
  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 possible authentication bypass was discovered in the LDAP
authentication backend. LDAP ignores leading and trailing whitespace
in search filters. This could possibly be abused to bypass explicit
access controls or confuse accounting when using several variants of
the login name. (CAN-2005-0173)

Previous Squid versions were not strict enough while parsing HTTP
requests and responses. Various violations of the HTTP protocol, such
as multiple Content-Length header lines, invalid 'Carriage Return'
characters, and HTTP header names containing whitespace, led to cache
pollution and could possibly be exploited to deliver wrong content to
clients. (CAN-2005-0174)

Squid was susceptible to a cache poisoning attack called 'HTTP
response splitting', where false replies are injected in the HTTP
stream. This allowed malicious web servers to forge wrong cache
content for arbitrary websites, which was then delivered to Squid
clients. (CAN-2005-0175)

The FSC Vulnerability Research Team discovered a buffer overflow in
the WCCP handling protocol. By sending an overly large WCCP packet, a
remote attacker could crash the Squid server, and possibly even
execute arbitrary code with the privileges of the 'proxy' user.
(CAN-2005-0211).

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:P/I:P/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:"patch_publication_date", value:"2005/02/07");
  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) 2005-2019 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:"squid", pkgver:"2.5.5-6ubuntu0.4")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"squid-cgi", pkgver:"2.5.5-6ubuntu0.4")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"squid-common", pkgver:"2.5.5-6ubuntu0.4")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"squidclient", pkgver:"2.5.5-6ubuntu0.4")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    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");
}

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
 script_id(16190);
 script_version("1.23");
 script_cvs_date("Date: 2018/07/30 15:31:32");

 script_cve_id("CVE-2005-0094", "CVE-2005-0095", "CVE-2005-0173", "CVE-2005-0174", "CVE-2005-0175", "CVE-2005-0211", "CVE-2005-0241");
 script_bugtraq_id(12275, 12276, 12412, 12433, 12432, 12431, 13434, 13435);

 script_name(english:"Squid < 2.5.STABLE8 Multiple Vulnerabilities");
 script_summary(english:"Determines squid version");

 script_set_attribute(attribute:"synopsis", value:"The remote proxy server is affected by multiple vulnerabilities.");
 script_set_attribute(attribute:"description", value:
"According to its version number, the remote Squid caching proxy is
affected by several security flaws :

  - There is a buffer overflow when handling the reply of a
    rogue gopher site. (CVE-2005-0094)

  - There is a denial of service vulnerability in the WCCP
    code of the remote proxy. (CVE-2005-0095)

  - There is a buffer overflow in the WCCP code that may
    allow an attacker to execute arbitrary code on the
    remote host. (CVE-2005-0211)

  - There is a flaw in the 'squid_ldap_auth' module that may
    allow an attacker to bypass authentication and to gain
    access to the remote proxy. (CVE-2005-0173)

  - There is a flaw in the way Squid parses HTTP reply
    headers. (CVE-2005-0241)

  - There is a weakness that may allow for cache poisoning
    via
    HTTP response splitting. (CVE-2005-0175)

  - There is a weakness that may allow for cache poisoning
    via
    crafted malformed headers. (CVE-2005-0174)

Note that this may be a false-positive given the way the Squid team
handles releases. Make sure that all the appropriate patches have been
applied.");
 script_set_attribute(attribute:"see_also", value:"http://www.squid-cache.org/Versions/v2/2.5/bugs/");
 script_set_attribute(attribute:"solution", value:"Upgrade to Squid 2.5.STABLE8 or later.");
 script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
 script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
 script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
 script_set_attribute(attribute:"exploit_available", value:"false");

 script_set_attribute(attribute:"vuln_publication_date", value:"2005/01/13");
 script_set_attribute(attribute:"plugin_publication_date", value:"2005/01/18");

 script_set_attribute(attribute:"potential_vulnerability", value:"true");
 script_set_attribute(attribute:"plugin_type", value:"remote");
 script_set_attribute(attribute:"cpe", value:"cpe:/a:squid-cache:squid");
 script_end_attributes();

 script_category(ACT_GATHER_INFO);
 script_copyright(english:"This script is Copyright (C) 2005-2018 Tenable Network Security, Inc.");
 script_family(english:"Firewalls");

 script_dependencie("squid_version.nasl");
 script_require_keys("www/squid", "Settings/ParanoidReport");
 script_require_ports("Services/http_proxy", 3128, 8080);

 exit(0);
}

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

if (report_paranoia < 2) audit(AUDIT_PARANOID);

# Build a list of ports from the
list = get_kb_list("http_proxy/*/squid/version");
if (isnull(list)) exit(0, "The host does not appear to be running a Squid proxy server.");

vulnerable = FALSE;
foreach item (keys(list))
{
  port = ereg_replace(pattern:'^http_proxy/([0-9]+)/squid/version', replace:'\\1', string:item);
  version = list[item];
  source = get_kb_item('http_proxy/'+port+'/squid/source');

  if (
    version =~ '^2\\.[0-4]\\.' ||
    version =~ '^2\\.5\\.STABLE[0-7]([^0-9]|$)'
  )
  {
    vulnerable = TRUE;
    if (report_verbosity > 0)
    {
      report =
        '\n  Version source    : ' + source +
        '\n  Installed version : ' + version +
        '\n  Fixed version     : 2.5.STABLE8' + '\n';
      security_hole(port:port, extra:report);
    }
    else security_hole(port:port);
  }
}
if (!vulnerable)
{
  exit(0, "No vulnerable Squid installs were detected on the remote host.");
}

#%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(18994);
  script_version("1.18");
  script_cvs_date("Date: 2019/08/02 13:32:37");

  script_cve_id("CVE-2005-0173");
  script_xref(name:"CERT", value:"924198");

  script_name(english:"FreeBSD : squid -- no sanity check of usernames in squid_ldap_auth (7a921e9e-68b1-11d9-9e1e-c296ac722cb3)");
  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 LDAP authentication helper did not strip leading or trailing
spaces from the login name. According to the squid patches page :

LDAP is very forgiving about spaces in search filters and this could
be abused to log in using several variants of the login name, possibly
bypassing explicit access controls or confusing accounting.

Workaround: Block logins with spaces

acl login_with_spaces proxy_auth_regex [:space:] http_access deny
login_with_spaces"
  );
  # http://www.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE7-ldap_spaces
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?96864d1c"
  );
  # http://www.squid-cache.org/bugs/show_bug.cgi?id=1187
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.squid-cache.org/show_bug.cgi?id=1187"
  );
  # https://vuxml.freebsd.org/freebsd/7a921e9e-68b1-11d9-9e1e-c296ac722cb3.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?2e44454a"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");

  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:"2005/01/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2005/01/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2005/07/13");
  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:"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<2.5.7_7")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:pkg_report_get());
  else security_hole(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 200502-04.
#
# 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(16441);
  script_version("1.16");
  script_cvs_date("Date: 2019/08/02 13:32:42");

  script_cve_id("CVE-2005-0173", "CVE-2005-0174", "CVE-2005-0175", "CVE-2005-0211");
  script_xref(name:"GLSA", value:"200502-04");

  script_name(english:"GLSA-200502-04 : Squid: Multiple 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-200502-04
(Squid: Multiple vulnerabilities)

    Squid contains several vulnerabilities:
    Buffer overflow when handling WCCP recvfrom()
    (CAN-2005-0211).
    Loose checking of HTTP headers (CAN-2005-0173 and
    CAN-2005-0174).
    Incorrect handling of LDAP login names with spaces
    (CAN-2005-0175).
  
Impact :

    An attacker could exploit:
    the WCCP buffer overflow to cause Denial of Service.
    the HTTP header parsing vulnerabilities to inject arbitrary
    response data, potentially leading to content spoofing, web cache
    poisoning and other cross-site scripting or HTTP response splitting
    attacks.
    the LDAP issue to login with several variations of the same login
    name, leading to log poisoning.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/200502-04"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All Squid users should upgrade to the latest version:
    # emerge --sync
    # emerge --ask --oneshot --verbose '>=net-proxy/squid-2.5.7-r5'"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/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:"2005/02/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2005/02/14");
  script_set_attribute(attribute:"vuln_publication_date", value:"2005/01/17");
  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 2.5.7-r5"), vulnerable:make_list("lt 2.5.7-r5"))) flag++;

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