Vulnerabilities > CVE-2019-6645 - Unspecified vulnerability in F5 products

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K15759349.
#
# The text description of this plugin is (C) F5 Networks.
#

include("compat.inc");

if (description)
{
  script_id(127496);
  script_version("1.5");
  script_cvs_date("Date: 2020/01/06");

  script_cve_id("CVE-2019-6645");

  script_name(english:"F5 Networks BIG-IP : BIG-IP FTP profile vulnerability (K15759349)");
  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:
"FTP traffic passing through a virtual server with both an active FTP
profile associated and connection mirroring configured may cause the
Traffic Management Microkernel (TMM) to stop responding, causing the
configured high availability (HA) action to be taken. (CVE-2019-6645)

Impact

This vulnerability allows remote attackers to cause a
denial-of-service (DoS) on the BIG-IP system."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=CVE-2019-6645"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://support.f5.com/csp/article/K15759349"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade to one of the non-vulnerable versions listed in the F5
Solution K15759349."
  );
  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:"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_webaccelerator");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/09/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/08/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/08/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019-2020 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", "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 = "K15759349";
vmatrix = make_array();

if (report_paranoia < 2) audit(AUDIT_PARANOID);

# AFM
vmatrix["AFM"] = make_array();
vmatrix["AFM"]["affected"  ] = make_list("14.1.0","13.1.0-13.1.1","12.1.0-12.1.4","11.5.2-11.6.5");
vmatrix["AFM"]["unaffected"] = make_list("15.0.0","14.1.0.6","13.1.3","12.1.5","11.6.5.1");

# AM
vmatrix["AM"] = make_array();
vmatrix["AM"]["affected"  ] = make_list("14.1.0","13.1.0-13.1.1","12.1.0-12.1.4","11.5.2-11.6.5");
vmatrix["AM"]["unaffected"] = make_list("15.0.0","14.1.0.6","13.1.3","12.1.5","11.6.5.1");

# APM
vmatrix["APM"] = make_array();
vmatrix["APM"]["affected"  ] = make_list("14.1.0","13.1.0-13.1.1","12.1.0-12.1.4","11.5.2-11.6.5");
vmatrix["APM"]["unaffected"] = make_list("15.0.0","14.1.0.6","13.1.3","12.1.5","11.6.5.1");

# ASM
vmatrix["ASM"] = make_array();
vmatrix["ASM"]["affected"  ] = make_list("14.1.0","13.1.0-13.1.1","12.1.0-12.1.4","11.5.2-11.6.5");
vmatrix["ASM"]["unaffected"] = make_list("15.0.0","14.1.0.6","13.1.3","12.1.5","11.6.5.1");

# AVR
vmatrix["AVR"] = make_array();
vmatrix["AVR"]["affected"  ] = make_list("14.1.0","13.1.0-13.1.1","12.1.0-12.1.4","11.5.2-11.6.5");
vmatrix["AVR"]["unaffected"] = make_list("15.0.0","14.1.0.6","13.1.3","12.1.5","11.6.5.1");

# GTM
vmatrix["GTM"] = make_array();
vmatrix["GTM"]["affected"  ] = make_list("14.1.0","13.1.0-13.1.1","12.1.0-12.1.4","11.5.2-11.6.5");
vmatrix["GTM"]["unaffected"] = make_list("15.0.0","14.1.0.6","13.1.3","12.1.5","11.6.5.1");

# LC
vmatrix["LC"] = make_array();
vmatrix["LC"]["affected"  ] = make_list("14.1.0","13.1.0-13.1.1","12.1.0-12.1.4","11.5.2-11.6.5");
vmatrix["LC"]["unaffected"] = make_list("15.0.0","14.1.0.6","13.1.3","12.1.5","11.6.5.1");

# LTM
vmatrix["LTM"] = make_array();
vmatrix["LTM"]["affected"  ] = make_list("14.1.0","13.1.0-13.1.1","12.1.0-12.1.4","11.5.2-11.6.5");
vmatrix["LTM"]["unaffected"] = make_list("15.0.0","14.1.0.6","13.1.3","12.1.5","11.6.5.1");

# PEM
vmatrix["PEM"] = make_array();
vmatrix["PEM"]["affected"  ] = make_list("14.1.0","13.1.0-13.1.1","12.1.0-12.1.4","11.5.2-11.6.5");
vmatrix["PEM"]["unaffected"] = make_list("15.0.0","14.1.0.6","13.1.3","12.1.5","11.6.5.1");

# WAM
vmatrix["WAM"] = make_array();
vmatrix["WAM"]["affected"  ] = make_list("14.1.0","13.1.0-13.1.1","12.1.0-12.1.4","11.5.2-11.6.5");
vmatrix["WAM"]["unaffected"] = make_list("15.0.0","14.1.0.6","13.1.3","12.1.5","11.6.5.1");


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");
}