F5 Networks BIG-IP : SOCKS proxy vulnerability (K30201296)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K30201296.
#
# The text description of this plugin is (C) F5 Networks.
#

include("compat.inc");

if (description)
{
  script_id(104192);
  script_version("3.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/09");

  script_cve_id("CVE-2017-0303");

  script_name(english:"F5 Networks BIG-IP : SOCKS proxy vulnerability (K30201296)");
  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:
"In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, GTM, Link
Controller, PEM and Websafe software version 13.0.0, 12.0.0 to 12.1.2
and 11.5.1 to 11.6.1, under limited circumstances connections handled
by a Virtual Server with an associated SOCKS profile may not be
properly cleaned up, potentially leading to resource starvation.
Connections may be left in the connection table which then can only be
removed by restarting TMM. Over time this may lead to the BIG-IP being
unable to process further connections. (CVE-2017-0303)

Impact

Connections may remain in the connection table that you can only
removeby restarting the Traffic Management Microkernel (TMM).Over
time, the BIG-IP system may be unable to process further connections."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://support.f5.com/csp/article/K30201296"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade to one of the non-vulnerable versions listed in the F5
Solution K30201296."
  );
  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:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:"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:/h:f5:big-ip");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/10/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/10/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/10/27");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2020 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");

  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 = "K30201296";
vmatrix = make_array();

# AFM
vmatrix["AFM"] = make_array();
vmatrix["AFM"]["affected"  ] = make_list("13.0.0","12.0.0-12.1.2","11.6.0-11.6.1","11.5.1-11.5.4");
vmatrix["AFM"]["unaffected"] = make_list("13.1.0","13.0.0HF1","12.1.3","12.1.2HF1","11.6.2","11.5.5","11.4.1");

# AM
vmatrix["AM"] = make_array();
vmatrix["AM"]["affected"  ] = make_list("13.0.0","12.0.0-12.1.2","11.6.0-11.6.1","11.5.1-11.5.4");
vmatrix["AM"]["unaffected"] = make_list("13.1.0","13.0.0HF1","12.1.3","12.1.2HF1","11.6.2","11.5.5","11.4.1");

# APM
vmatrix["APM"] = make_array();
vmatrix["APM"]["affected"  ] = make_list("13.0.0","12.0.0-12.1.2","11.6.0-11.6.1","11.5.1-11.5.4");
vmatrix["APM"]["unaffected"] = make_list("13.1.0","13.0.0HF1","12.1.3","12.1.2HF1","11.6.2","11.5.5","11.2.1-11.4.1");

# ASM
vmatrix["ASM"] = make_array();
vmatrix["ASM"]["affected"  ] = make_list("13.0.0","12.0.0-12.1.2","11.6.0-11.6.1","11.5.1-11.5.4");
vmatrix["ASM"]["unaffected"] = make_list("13.1.0","13.0.0HF1","12.1.3","12.1.2HF1","11.6.2","11.5.5","11.2.1-11.4.1");

# AVR
vmatrix["AVR"] = make_array();
vmatrix["AVR"]["affected"  ] = make_list("13.0.0","12.0.0-12.1.2","11.6.0-11.6.1","11.5.1-11.5.4");
vmatrix["AVR"]["unaffected"] = make_list("13.1.0","13.0.0HF1","12.1.3","12.1.2HF1","11.6.2","11.5.5","11.2.1-11.4.1");

# GTM
vmatrix["GTM"] = make_array();
vmatrix["GTM"]["affected"  ] = make_list("11.6.0-11.6.1","11.5.1-11.5.4");
vmatrix["GTM"]["unaffected"] = make_list("11.6.2","11.5.5","11.2.1-11.4.1");

# LC
vmatrix["LC"] = make_array();
vmatrix["LC"]["affected"  ] = make_list("13.0.0","12.0.0-12.1.2","11.6.0-11.6.1","11.5.1-11.5.4");
vmatrix["LC"]["unaffected"] = make_list("13.1.0","13.0.0HF1","12.1.3","12.1.2HF1","11.6.2","11.5.5","11.2.1-11.4.1");

# LTM
vmatrix["LTM"] = make_array();
vmatrix["LTM"]["affected"  ] = make_list("13.0.0","12.0.0-12.1.2","11.6.0-11.6.1","11.5.1-11.5.4");
vmatrix["LTM"]["unaffected"] = make_list("13.1.0","13.0.0HF1","12.1.3","12.1.2HF1","11.6.2","11.5.5","11.2.1-11.4.1");

# PEM
vmatrix["PEM"] = make_array();
vmatrix["PEM"]["affected"  ] = make_list("13.0.0","12.0.0-12.1.2","11.6.0-11.6.1","11.5.1-11.5.4");
vmatrix["PEM"]["unaffected"] = make_list("13.1.0","13.0.0HF1","12.1.3","12.1.2HF1","11.6.2","11.5.5","11.4.1");


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");
}