Vulnerabilities > CVE-2019-6641 - Unspecified vulnerability in F5 products

047910
CVSS 6.5 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
HIGH
network
low complexity
f5
nessus

Summary

On BIG-IP 12.1.0-12.1.4.1, undisclosed requests can cause iControl REST processes to crash. The attack can only come from an authenticated user; all roles are capable of performing the attack. Unauthenticated users cannot perform this attack.

Vulnerable Configurations

Part Description Count
Application
F5
152

Nessus

NASL familyF5 Networks Local Security Checks
NASL idF5_BIGIP_SOL22384173.NASL
descriptionUndisclosed requests can cause iControl REST processes to crash. The attack can only come from an authenticated user; all roles are capable of performing the attack. Unauthenticated users cannot perform this attack.(CVE-2019-6641) Impact BIG-IP When this vulnerability is exploited, the restjavad process restarts. As a result, iControl REST is momentarily unavailable. BIG-IQ / Enterprise Manager / F5 iWorkflow / Traffix SDC There is no impact; F5 products are not affected by this vulnerability.
last seen2020-06-01
modified2020-06-02
plugin id126400
published2019-07-02
reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/126400
titleF5 Networks BIG-IP : iControl REST vulnerability (K22384173)
code
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K22384173.
#
# The text description of this plugin is (C) F5 Networks.
#

include("compat.inc");

if (description)
{
  script_id(126400);
  script_version("1.3");
  script_cvs_date("Date: 2020/01/08");

  script_cve_id("CVE-2019-6641");

  script_name(english:"F5 Networks BIG-IP : iControl REST vulnerability (K22384173)");
  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:
"Undisclosed requests can cause iControl REST processes to crash. The
attack can only come from an authenticated user; all roles are capable
of performing the attack. Unauthenticated users cannot perform this
attack.(CVE-2019-6641)

Impact

BIG-IP

When this vulnerability is exploited, the restjavad process restarts.
As a result, iControl REST is momentarily unavailable.

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

There is no impact; F5 products are not affected by this
vulnerability."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://support.f5.com/csp/article/K22384173"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade to one of the non-vulnerable versions listed in the F5
Solution K22384173."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/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:L/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:"2019/07/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/07/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/07/02");
  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 = "K22384173";
vmatrix = make_array();

if (report_paranoia < 2) audit(AUDIT_PARANOID);

# AFM
vmatrix["AFM"] = make_array();
vmatrix["AFM"]["affected"  ] = make_list("12.1.2-12.1.4");
vmatrix["AFM"]["unaffected"] = make_list("13.0.0");

# AM
vmatrix["AM"] = make_array();
vmatrix["AM"]["affected"  ] = make_list("12.1.2-12.1.4");
vmatrix["AM"]["unaffected"] = make_list("13.0.0");

# APM
vmatrix["APM"] = make_array();
vmatrix["APM"]["affected"  ] = make_list("12.1.2-12.1.4");
vmatrix["APM"]["unaffected"] = make_list("13.0.0");

# ASM
vmatrix["ASM"] = make_array();
vmatrix["ASM"]["affected"  ] = make_list("12.1.2-12.1.4");
vmatrix["ASM"]["unaffected"] = make_list("13.0.0");

# AVR
vmatrix["AVR"] = make_array();
vmatrix["AVR"]["affected"  ] = make_list("12.1.2-12.1.4");
vmatrix["AVR"]["unaffected"] = make_list("13.0.0");

# GTM
vmatrix["GTM"] = make_array();
vmatrix["GTM"]["affected"  ] = make_list("12.1.2-12.1.4");
vmatrix["GTM"]["unaffected"] = make_list("13.0.0");

# LC
vmatrix["LC"] = make_array();
vmatrix["LC"]["affected"  ] = make_list("12.1.2-12.1.4");
vmatrix["LC"]["unaffected"] = make_list("13.0.0");

# LTM
vmatrix["LTM"] = make_array();
vmatrix["LTM"]["affected"  ] = make_list("12.1.2-12.1.4");
vmatrix["LTM"]["unaffected"] = make_list("13.0.0");

# PEM
vmatrix["PEM"] = make_array();
vmatrix["PEM"]["affected"  ] = make_list("12.1.2-12.1.4");
vmatrix["PEM"]["unaffected"] = make_list("13.0.0");

# WAM
vmatrix["WAM"] = make_array();
vmatrix["WAM"]["affected"  ] = make_list("12.1.2-12.1.4");
vmatrix["WAM"]["unaffected"] = make_list("13.0.0");


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");
}