F5 Networks BIG-IP : GnuPG vulnerability (K50413110)

2016-02-22T00:00:00
ID F5_BIGIP_SOL50413110.NASL
Type nessus
Reporter Tenable
Modified 2018-07-10T00:00:00

Description

GnuPG 1.4.x, 2.0.x, and 2.1.x treats a key flags subpacket with all bits cleared (no usage permitted) as if it has all bits set (all usage permitted), which might allow remote attackers to bypass intended cryptographic protection mechanisms by leveraging the subkey. (CVE-2013-4351)

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K50413110.
#
# The text description of this plugin is (C) F5 Networks.
#

include("compat.inc");

if (description)
{
  script_id(88872);
  script_version("2.7");
  script_cvs_date("Date: 2018/07/10 14:27:33");

  script_cve_id("CVE-2013-4351");
  script_bugtraq_id(62921);

  script_name(english:"F5 Networks BIG-IP : GnuPG vulnerability (K50413110)");
  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:
"GnuPG 1.4.x, 2.0.x, and 2.1.x treats a key flags subpacket with all
bits cleared (no usage permitted) as if it has all bits set (all usage
permitted), which might allow remote attackers to bypass intended
cryptographic protection mechanisms by leveraging the subkey.
(CVE-2013-4351)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://support.f5.com/csp/#/article/K50413110"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade to one of the non-vulnerable versions listed in the F5
Solution K50413110."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N");
  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:"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_advanced_firewall_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_acceleration_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_policy_enforcement_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:"2016/02/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/02/22");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2018 Tenable Network Security, Inc.");
  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 = "K50413110";
vmatrix = make_array();

if (report_paranoia < 2) audit(AUDIT_PARANOID);

# AFM
vmatrix["AFM"] = make_array();
vmatrix["AFM"]["affected"  ] = make_list("13.0.0-13.1.0","12.0.0-12.1.3","11.6.1-11.6.3","11.3.0-11.4.1");
vmatrix["AFM"]["unaffected"] = make_list("11.5.0-11.6.0");

# AM
vmatrix["AM"] = make_array();
vmatrix["AM"]["affected"  ] = make_list("13.0.0-13.1.0","12.0.0-12.1.3","11.6.1-11.6.3","11.4.0-11.4.1");
vmatrix["AM"]["unaffected"] = make_list("11.5.0-11.6.0");

# APM
vmatrix["APM"] = make_array();
vmatrix["APM"]["affected"  ] = make_list("13.0.0-13.1.0","12.0.0-12.1.3","11.6.1-11.6.3","11.0.0-11.4.1","10.1.0-10.2.4");
vmatrix["APM"]["unaffected"] = make_list("11.5.0-11.6.0");

# ASM
vmatrix["ASM"] = make_array();
vmatrix["ASM"]["affected"  ] = make_list("13.0.0-13.1.0","12.0.0-12.1.3","11.6.1-11.6.3","11.0.0-11.4.1");
vmatrix["ASM"]["unaffected"] = make_list("11.5.0-11.6.0");

# AVR
vmatrix["AVR"] = make_array();
vmatrix["AVR"]["affected"  ] = make_list("13.0.0-13.1.0","12.0.0-12.1.3","11.6.1-11.6.3","11.0.0-11.4.1");
vmatrix["AVR"]["unaffected"] = make_list("11.5.0-11.6.0");

# GTM
vmatrix["GTM"] = make_array();
vmatrix["GTM"]["affected"  ] = make_list("11.6.1-11.6.3","11.0.0-11.4.1","10.1.0-10.2.4");
vmatrix["GTM"]["unaffected"] = make_list("11.5.0-11.6.0");

# LC
vmatrix["LC"] = make_array();
vmatrix["LC"]["affected"  ] = make_list("13.0.0-13.1.0","12.0.0-12.1.3","11.6.1-11.6.3","11.0.0-11.4.1","10.1.0-10.2.4");
vmatrix["LC"]["unaffected"] = make_list("11.5.0-11.6.0");

# LTM
vmatrix["LTM"] = make_array();
vmatrix["LTM"]["affected"  ] = make_list("13.0.0-13.1.0","12.0.0-12.1.3","11.6.1-11.6.3","11.0.0-11.4.1","10.1.0-10.2.4");
vmatrix["LTM"]["unaffected"] = make_list("11.5.0-11.6.0");

# PEM
vmatrix["PEM"] = make_array();
vmatrix["PEM"]["affected"  ] = make_list("13.0.0-13.1.0","12.0.0-12.1.3","11.6.1-11.6.3","11.3.0-11.4.1");
vmatrix["PEM"]["unaffected"] = make_list("11.5.0-11.6.0");


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");
}