4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
42.6%
BIG-IP virtual servers with Loose Initiation enabled on a FastL4 profile may be subject to excessive flow usage under undisclosed conditions. (CVE-2019-6683)
Impact
This vulnerability is present only on BIG-IP Virtual Edition (VE) systems with limited bandwidth licenses. BIG-IP VE products with unlimited bandwidth are not affected.
Memory usage increases and will trigger aggressive sweeper until exhaustion. In the /var/log/ltm file, affected systems log Inet port exhaustion log messages.
Traffic processing is disrupted while the Traffic Management Microkernel (TMM) restarts. If the affected F5 device is configured as part of a device group, the system triggers a failover to the peer device.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K76328112.
#
# The text description of this plugin is (C) F5 Networks.
#
include('compat.inc');
if (description)
{
script_id(132575);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/03");
script_cve_id("CVE-2019-6683");
script_name(english:"F5 Networks BIG-IP : BIG-IP TMM vulnerability (K76328112)");
script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch.");
script_set_attribute(attribute:"description", value:
"BIG-IP virtual servers with Loose Initiation enabled on a FastL4
profile may be subject to excessive flow usage under undisclosed
conditions. (CVE-2019-6683)
Impact
This vulnerability is present only on BIG-IP Virtual Edition (VE)
systems with limited bandwidth licenses. BIG-IP VE products with
unlimited bandwidth are not affected.
Memory usage increases and will trigger aggressive sweeper until
exhaustion. In the /var/log/ltm file, affected systems log Inet port
exhaustion log messages.
Traffic processing is disrupted while the Traffic Management
Microkernel (TMM) restarts. If the affected F5 device is configured as
part of a device group, the system triggers a failover to the peer
device.");
script_set_attribute(attribute:"see_also", value:"https://my.f5.com/manage/s/article/K76328112");
script_set_attribute(attribute:"solution", value:
"Upgrade to one of the non-vulnerable versions listed in the F5 Solution K76328112.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:"cvss_score_source", value:"CVE-2019-6683");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/12/23");
script_set_attribute(attribute:"patch_publication_date", value:"2019/12/20");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/31");
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_domain_name_system");
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:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"F5 Networks Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2019-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
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);
var 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');
var sol = 'K76328112';
var vmatrix = {
'AFM': {
'affected': [
'15.0.0-15.0.1','14.1.0-14.1.2','14.0.0-14.0.1','13.1.0-13.1.3','12.1.0-12.1.5','11.5.2-11.6.5'
],
'unaffected': [
'15.1.0','14.1.2.3','14.0.1.1','13.1.3.4','12.1.5.1','11.6.5.2'
],
},
'AM': {
'affected': [
'15.0.0-15.0.1','14.1.0-14.1.2','14.0.0-14.0.1','13.1.0-13.1.3','12.1.0-12.1.5','11.5.2-11.6.5'
],
'unaffected': [
'15.1.0','14.1.2.3','14.0.1.1','13.1.3.4','12.1.5.1','11.6.5.2'
],
},
'APM': {
'affected': [
'15.0.0-15.0.1','14.1.0-14.1.2','14.0.0-14.0.1','13.1.0-13.1.3','12.1.0-12.1.5','11.5.2-11.6.5'
],
'unaffected': [
'15.1.0','14.1.2.3','14.0.1.1','13.1.3.4','12.1.5.1','11.6.5.2'
],
},
'ASM': {
'affected': [
'15.0.0-15.0.1','14.1.0-14.1.2','14.0.0-14.0.1','13.1.0-13.1.3','12.1.0-12.1.5','11.5.2-11.6.5'
],
'unaffected': [
'15.1.0','14.1.2.3','14.0.1.1','13.1.3.4','12.1.5.1','11.6.5.2'
],
},
'AVR': {
'affected': [
'15.0.0-15.0.1','14.1.0-14.1.2','14.0.0-14.0.1','13.1.0-13.1.3','12.1.0-12.1.5','11.5.2-11.6.5'
],
'unaffected': [
'15.1.0','14.1.2.3','14.0.1.1','13.1.3.4','12.1.5.1','11.6.5.2'
],
},
'DNS': {
'affected': [
'15.0.0-15.0.1','14.1.0-14.1.2','14.0.0-14.0.1','13.1.0-13.1.3','12.1.0-12.1.5','11.5.2-11.6.5'
],
'unaffected': [
'15.1.0','14.1.2.3','14.0.1.1','13.1.3.4','12.1.5.1','11.6.5.2'
],
},
'GTM': {
'affected': [
'15.0.0-15.0.1','14.1.0-14.1.2','14.0.0-14.0.1','13.1.0-13.1.3','12.1.0-12.1.5','11.5.2-11.6.5'
],
'unaffected': [
'15.1.0','14.1.2.3','14.0.1.1','13.1.3.4','12.1.5.1','11.6.5.2'
],
},
'LC': {
'affected': [
'15.0.0-15.0.1','14.1.0-14.1.2','14.0.0-14.0.1','13.1.0-13.1.3','12.1.0-12.1.5','11.5.2-11.6.5'
],
'unaffected': [
'15.1.0','14.1.2.3','14.0.1.1','13.1.3.4','12.1.5.1','11.6.5.2'
],
},
'LTM': {
'affected': [
'15.0.0-15.0.1','14.1.0-14.1.2','14.0.0-14.0.1','13.1.0-13.1.3','12.1.0-12.1.5','11.5.2-11.6.5'
],
'unaffected': [
'15.1.0','14.1.2.3','14.0.1.1','13.1.3.4','12.1.5.1','11.6.5.2'
],
},
'PEM': {
'affected': [
'15.0.0-15.0.1','14.1.0-14.1.2','14.0.0-14.0.1','13.1.0-13.1.3','12.1.0-12.1.5','11.5.2-11.6.5'
],
'unaffected': [
'15.1.0','14.1.2.3','14.0.1.1','13.1.3.4','12.1.5.1','11.6.5.2'
],
}
};
if (bigip_is_affected(vmatrix:vmatrix, sol:sol))
{
var extra = NULL;
if (report_verbosity > 0) extra = bigip_report_get();
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : extra
);
}
else
{
var tested = bigip_get_tested_modules();
var 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');
}
Vendor | Product | Version | CPE |
---|---|---|---|
f5 | big-ip_access_policy_manager | cpe:/a:f5:big-ip_access_policy_manager | |
f5 | big-ip_advanced_firewall_manager | cpe:/a:f5:big-ip_advanced_firewall_manager | |
f5 | big-ip_application_acceleration_manager | cpe:/a:f5:big-ip_application_acceleration_manager | |
f5 | big-ip_application_security_manager | cpe:/a:f5:big-ip_application_security_manager | |
f5 | big-ip_application_visibility_and_reporting | cpe:/a:f5:big-ip_application_visibility_and_reporting | |
f5 | big-ip_domain_name_system | cpe:/a:f5:big-ip_domain_name_system | |
f5 | big-ip_global_traffic_manager | cpe:/a:f5:big-ip_global_traffic_manager | |
f5 | big-ip_link_controller | cpe:/a:f5:big-ip_link_controller | |
f5 | big-ip_local_traffic_manager | cpe:/a:f5:big-ip_local_traffic_manager | |
f5 | big-ip_policy_enforcement_manager | cpe:/a:f5:big-ip_policy_enforcement_manager |
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
42.6%