Vulnerabilities > CVE-2012-0021 - Improper Input Validation vulnerability in Apache Http Server

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution SOL15889.
#
# The text description of this plugin is (C) F5 Networks.
#

include("compat.inc");

if (description)
{
  script_id(79733);
  script_version("1.12");
  script_cvs_date("Date: 2019/01/04 10:03:40");

  script_cve_id("CVE-2011-3368", "CVE-2011-4317", "CVE-2012-0021", "CVE-2012-0031", "CVE-2012-0053");
  script_bugtraq_id(49957, 50802, 51705);

  script_name(english:"F5 Networks BIG-IP : Apache HTTP server vulnerabilities (SOL15889)");
  script_summary(english:"Checks the BIG-IP version.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote device is missing a vendor-supplied security patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The mod_proxy module in the Apache HTTP Server 1.3.x through 1.3.42,
2.0.x through 2.0.64, and 2.2.x through 2.2.21 does not properly
interact with use of (1) RewriteRule and (2) ProxyPassMatch pattern
matches for configuration of a reverse proxy, which allows remote
attackers to send requests to intranet servers via a malformed URI
containing an initial @ (at sign) character."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://support.f5.com/csp/article/K15889"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade to one of the non-vulnerable versions listed in the F5
Solution SOL15889."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/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:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_access_policy_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_security_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_visibility_and_reporting");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_global_traffic_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_link_controller");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_local_traffic_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_wan_optimization_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_webaccelerator");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip_protocol_security_manager");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/12/03");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/12/05");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"F5 Networks Local Security Checks");

  script_dependencies("f5_bigip_detect.nbin");
  script_require_keys("Host/local_checks_enabled", "Host/BIG-IP/hotfix", "Host/BIG-IP/modules", "Host/BIG-IP/version", "Settings/ParanoidReport");

  exit(0);
}


include("f5_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
version = get_kb_item("Host/BIG-IP/version");
if ( ! version ) audit(AUDIT_OS_NOT, "F5 Networks BIG-IP");
if ( isnull(get_kb_item("Host/BIG-IP/hotfix")) ) audit(AUDIT_KB_MISSING, "Host/BIG-IP/hotfix");
if ( ! get_kb_item("Host/BIG-IP/modules") ) audit(AUDIT_KB_MISSING, "Host/BIG-IP/modules");

sol = "SOL15889";
vmatrix = make_array();

if (report_paranoia < 2) audit(AUDIT_PARANOID);

# APM
vmatrix["APM"] = make_array();
vmatrix["APM"]["affected"  ] = make_list("11.0.0-11.1.0","10.1.0-10.2.4");
vmatrix["APM"]["unaffected"] = make_list("11.2.0-11.6.0","10.2.4HF12");

# ASM
vmatrix["ASM"] = make_array();
vmatrix["ASM"]["affected"  ] = make_list("11.0.0-11.1.0","10.0.0-10.2.4");
vmatrix["ASM"]["unaffected"] = make_list("11.2.0-11.6.0","10.2.4HF12");

# AVR
vmatrix["AVR"] = make_array();
vmatrix["AVR"]["affected"  ] = make_list("11.0.0-11.1.0");
vmatrix["AVR"]["unaffected"] = make_list("11.2.0-11.6.0");

# GTM
vmatrix["GTM"] = make_array();
vmatrix["GTM"]["affected"  ] = make_list("11.0.0-11.1.0","10.0.0-10.2.4");
vmatrix["GTM"]["unaffected"] = make_list("11.2.0-11.6.0","10.2.4HF12");

# LC
vmatrix["LC"] = make_array();
vmatrix["LC"]["affected"  ] = make_list("11.0.0-11.1.0","10.0.0-10.2.4");
vmatrix["LC"]["unaffected"] = make_list("11.2.0-11.6.0","10.2.4HF12");

# LTM
vmatrix["LTM"] = make_array();
vmatrix["LTM"]["affected"  ] = make_list("11.0.0-11.1.0","10.0.0-10.2.4");
vmatrix["LTM"]["unaffected"] = make_list("11.2.0-11.6.0","10.2.4HF12");

# PSM
vmatrix["PSM"] = make_array();
vmatrix["PSM"]["affected"  ] = make_list("11.0.0-11.1.0","10.0.0-10.2.4");
vmatrix["PSM"]["unaffected"] = make_list("11.2.0-11.4.1","10.2.4HF12");

# WAM
vmatrix["WAM"] = make_array();
vmatrix["WAM"]["affected"  ] = make_list("11.0.0-11.1.0","10.0.0-10.2.4");
vmatrix["WAM"]["unaffected"] = make_list("11.2.0-11.3.0","10.2.4HF12");

# WOM
vmatrix["WOM"] = make_array();
vmatrix["WOM"]["affected"  ] = make_list("11.0.0-11.1.0","10.0.0-10.2.4");
vmatrix["WOM"]["unaffected"] = make_list("11.2.0-11.3.0","10.2.4HF12");


if (bigip_is_affected(vmatrix:vmatrix, sol:sol))
{
  if (report_verbosity > 0) security_warning(port:0, extra:bigip_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = bigip_get_tested_modules();
  audit_extra = "For BIG-IP module(s) " + tested + ",";
  if (tested) audit(AUDIT_INST_VER_NOT_VULN, audit_extra, version);
  else audit(AUDIT_HOST_NOT, "running any of the affected modules");
}

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

include("compat.inc");

if (description)
{
  script_id(57791);
  script_version("1.18");
  script_cvs_date("Date: 2018/06/29 12:01:03");

  script_cve_id(
    "CVE-2011-3368",
    "CVE-2011-3607",
    "CVE-2011-4317",
    "CVE-2012-0021",
    "CVE-2012-0031",
    "CVE-2012-0053",
    "CVE-2012-4557"
  );
  script_bugtraq_id(49957, 50494, 50802, 51407, 51705, 51706, 56753);

  script_name(english:"Apache 2.2.x < 2.2.22 Multiple Vulnerabilities");
  script_summary(english:"Checks version in Server response header.");
 
 script_set_attribute(attribute:"synopsis", value:
"The remote web server is affected by multiple vulnerabilities.");
 script_set_attribute(attribute:"description", value:
"According to its banner, the version of Apache 2.2.x installed on the
remote host is prior to 2.2.22. It is, therefore, potentially affected
by the following vulnerabilities :

  - When configured as a reverse proxy, improper use of the
    RewriteRule and ProxyPassMatch directives could cause
    the web server to proxy requests to arbitrary hosts.
    This could allow a remote attacker to indirectly send
    requests to intranet servers.
    (CVE-2011-3368, CVE-2011-4317)

  - A heap-based buffer overflow exists when mod_setenvif
    module is enabled and both a maliciously crafted 
    'SetEnvIf' directive and a maliciously crafted HTTP 
    request header are used. (CVE-2011-3607)

  - A format string handling error can allow the server to
    be crashed via maliciously crafted cookies.
    (CVE-2012-0021)

  - An error exists in 'scoreboard.c' that can allow local
    attackers to crash the server during shutdown.
    (CVE-2012-0031)

  - An error exists in 'protocol.c' that can allow 
    'HTTPOnly' cookies to be exposed to attackers through
    the malicious use of either long or malformed HTTP
    headers. (CVE-2012-0053)

  - An error in the mod_proxy_ajp module when used to 
    connect to a backend server that takes an overly long 
    time to respond could lead to a temporary denial of 
    service. (CVE-2012-4557)

Note that Nessus did not actually test for these flaws, but instead 
has relied on the version in the server's banner.");
  script_set_attribute(attribute:"see_also", value:"https://archive.apache.org/dist/httpd/CHANGES_2.2.22");
  script_set_attribute(attribute:"see_also", value:"http://httpd.apache.org/security/vulnerabilities_22.html");
  script_set_attribute(attribute:"solution", value:"Upgrade to Apache version 2.2.22 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2011/10/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/01/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/02/02");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:apache:http_server");
  script_end_attributes();
 
  script_category(ACT_GATHER_INFO);
  script_family(english:"Web Servers");

  script_copyright(english:"This script is Copyright (C) 2012-2018 Tenable Network Security, Inc.");

  script_dependencies("apache_http_version.nasl");
  script_require_keys("installed_sw/Apache");
  script_require_ports("Services/www", 80);

  exit(0);
}

include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("audit.inc");
include("install_func.inc");

get_install_count(app_name:"Apache", exit_if_zero:TRUE);
port = get_http_port(default:80);
install = get_single_install(app_name:"Apache", port:port, exit_if_unknown_ver:TRUE);

# Check if we could get a version first, then check if it was
# backported
version = get_kb_item_or_exit('www/apache/'+port+'/version', exit_code:1);
backported = get_kb_item_or_exit('www/apache/'+port+'/backported', exit_code:1);

if (report_paranoia < 2 && backported) audit(AUDIT_BACKPORT_SERVICE, port, "Apache");
source = get_kb_item_or_exit('www/apache/'+port+'/source', exit_code:1);

# Check if the version looks like either ServerTokens Major/Minor
# was used
if (version =~ '^2(\\.2)?$') exit(1, "The banner from the Apache server listening on port "+port+" - "+source+" - is not granular enough to make a determination.");

fixed_ver = '2.2.22';
if (version =~ '^2\\.2' && ver_compare(ver:version, fix:fixed_ver) == -1)
{
  if (report_verbosity > 0)
  {
    report = 
      '\n  Version source    : ' + source +
      '\n  Installed version : ' + version +
      '\n  Fixed version     : ' + fixed_ver + '\n';
    security_warning(port:port, extra:report);
  }
  else security_warning(port);
  exit(0);
}
else audit(AUDIT_LISTEN_NOT_VULN, "Apache", port, install["version"]);

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 201206-25.
#
# The advisory text is Copyright (C) 2001-2016 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(59678);
  script_version("1.22");
  script_cvs_date("Date: 2018/07/11 17:09:26");

  script_cve_id("CVE-2010-0408", "CVE-2010-0434", "CVE-2010-1452", "CVE-2010-2791", "CVE-2011-3192", "CVE-2011-3348", "CVE-2011-3368", "CVE-2011-3607", "CVE-2011-4317", "CVE-2012-0021", "CVE-2012-0031", "CVE-2012-0053", "CVE-2012-0883");
  script_bugtraq_id(38491, 38494, 38580, 41963, 42102, 49303, 49616, 49957, 50494, 50802, 51407, 51705, 51706, 53046);
  script_xref(name:"GLSA", value:"201206-25");

  script_name(english:"GLSA-201206-25 : Apache HTTP Server: 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-201206-25
(Apache HTTP Server: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Apache HTTP Server.
      Please review the CVE identifiers referenced below for details.
  
Impact :

    A remote attacker might obtain sensitive information, gain privileges,
      send requests to unintended servers behind proxies, bypass certain
      security restrictions, obtain the values of HTTPOnly cookies, or cause a
      Denial of Service in various ways.
    A local attacker could gain escalated privileges.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/201206-25"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All Apache HTTP Server users should upgrade to the latest version:
      # emerge --sync
      # emerge --ask --oneshot --verbose '>=www-servers/apache-2.2.22-r1'"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  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:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_cwe_id(200);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:apache");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2012/06/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/06/25");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2018 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:"www-servers/apache", unaffected:make_list("ge 2.2.22-r1"), vulnerable:make_list("lt 2.2.22-r1"))) 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, "Apache HTTP Server");
}