Vulnerabilities > CVE-2019-6619 - Unspecified vulnerability in F5 products

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
HIGH
network
low complexity
f5
nessus

Summary

On BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, and 12.1.0-12.1.4, the Traffic Management Microkernel (TMM) may restart when a virtual server has an HTTP/2 profile with Application Layer Protocol Negotiation (ALPN) enabled and it processes traffic where the ALPN extension size is zero.

Vulnerable Configurations

Part Description Count
Application
F5
389

Nessus

NASL familyF5 Networks Local Security Checks
NASL idF5_BIGIP_SOL94563344.NASL
descriptionThe Traffic Management Microkernel (TMM)may restart when a virtual server has an HTTP/2 profile with Application Layer Protocol Negotiation (ALPN)enabled and it processes traffic where the ALPN extension size is zero.(CVE-2019-6619) Impact BIG-IP The Traffic Management Microkernel (TMM) generates a core file and restarts. If configured as part of a high availability (HA) device group, the BIG-IP system fails over to the peer device. For BIG-IP versions 13.1.0 and later, the ALPN setting is enabled on the HTTP/2 profile by default. Enterprise Manager, BIG-IQ, F5 iWorkflow, Traffix SDC There is no impact on theseF5 productsand they are not affected by this vulnerability.
last seen2020-06-01
modified2020-06-02
plugin id124426
published2019-05-01
reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/124426
titleF5 Networks BIG-IP : HTTP/2 ALPN vulnerability (K94563344)
code
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K94563344.
#
# The text description of this plugin is (C) F5 Networks.
#

include("compat.inc");

if (description)
{
  script_id(124426);
  script_version("1.4");
  script_cvs_date("Date: 2020/01/21");

  script_cve_id("CVE-2019-6619");

  script_name(english:"F5 Networks BIG-IP : HTTP/2 ALPN vulnerability (K94563344)");
  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 Traffic Management Microkernel (TMM)may restart when a virtual
server has an HTTP/2 profile with Application Layer Protocol
Negotiation (ALPN)enabled and it processes traffic where the ALPN
extension size is zero.(CVE-2019-6619)

Impact

BIG-IP

The Traffic Management Microkernel (TMM) generates a core file and
restarts. If configured as part of a high availability (HA) device
group, the BIG-IP system fails over to the peer device. For BIG-IP
versions 13.1.0 and later, the ALPN setting is enabled on the HTTP/2
profile by default.

Enterprise Manager, BIG-IQ, F5 iWorkflow, Traffix SDC

There is no impact on theseF5 productsand they are not affected by
this vulnerability."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://support.f5.com/csp/article/K94563344"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade to one of the non-vulnerable versions listed in the F5
Solution K94563344."
  );
  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_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:"2019/05/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/04/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/05/01");
  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 = "K94563344";
vmatrix = make_array();

if (report_paranoia < 2) audit(AUDIT_PARANOID);

# AFM
vmatrix["AFM"] = make_array();
vmatrix["AFM"]["affected"  ] = make_list("14.0.0-14.1.0","13.0.0-13.1.1","12.1.0-12.1.4");
vmatrix["AFM"]["unaffected"] = make_list("14.1.0.2","13.1.1.5","12.1.4.1");

# AM
vmatrix["AM"] = make_array();
vmatrix["AM"]["affected"  ] = make_list("14.0.0-14.1.0","13.0.0-13.1.1","12.1.0-12.1.4");
vmatrix["AM"]["unaffected"] = make_list("14.1.0.2","13.1.1.5","12.1.4.1");

# APM
vmatrix["APM"] = make_array();
vmatrix["APM"]["affected"  ] = make_list("14.0.0-14.1.0","13.0.0-13.1.1","12.1.0-12.1.4");
vmatrix["APM"]["unaffected"] = make_list("14.1.0.2","13.1.1.5","12.1.4.1");

# ASM
vmatrix["ASM"] = make_array();
vmatrix["ASM"]["affected"  ] = make_list("14.0.0-14.1.0","13.0.0-13.1.1","12.1.0-12.1.4");
vmatrix["ASM"]["unaffected"] = make_list("14.1.0.2","13.1.1.5","12.1.4.1");

# LC
vmatrix["LC"] = make_array();
vmatrix["LC"]["affected"  ] = make_list("14.0.0-14.1.0","13.0.0-13.1.1","12.1.0-12.1.4");
vmatrix["LC"]["unaffected"] = make_list("14.1.0.2","13.1.1.5","12.1.4.1");

# LTM
vmatrix["LTM"] = make_array();
vmatrix["LTM"]["affected"  ] = make_list("14.0.0-14.1.0","13.0.0-13.1.1","12.1.0-12.1.4");
vmatrix["LTM"]["unaffected"] = make_list("14.1.0.2","13.1.1.5","12.1.4.1");

# PEM
vmatrix["PEM"] = make_array();
vmatrix["PEM"]["affected"  ] = make_list("14.0.0-14.1.0","13.0.0-13.1.1","12.1.0-12.1.4");
vmatrix["PEM"]["unaffected"] = make_list("14.1.0.2","13.1.1.5","12.1.4.1");

# WAM
vmatrix["WAM"] = make_array();
vmatrix["WAM"]["affected"  ] = make_list("14.0.0-14.1.0","13.0.0-13.1.1","12.1.0-12.1.4");
vmatrix["WAM"]["unaffected"] = make_list("14.1.0.2","13.1.1.5","12.1.4.1");


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");
}