The BIG-IP Edge Client components in BIG-IP APM, Edge Gateway, and FirePass legacyallow attackers to obtain the full session ID from process memory. (CVE-2020-5892)
Impact
An attacker with sufficient local privileges on a client machine running Windows may be able to gain access to the full session ID.
Note : This vulnerability is limited to the BIG-IP Edge Client, F5 Access, and FirePass legacy client for Windows only; it does not impact the BIG-IP or FirePass host.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K15838353.
#
# The text description of this plugin is (C) F5 Networks.
#
include('compat.inc');
if (description)
{
script_id(137676);
script_version("1.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/02");
script_cve_id("CVE-2020-5892");
script_name(english:"F5 Networks BIG-IP : BIG-IP Edge Client for Windows vulnerability (K15838353)");
script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch.");
script_set_attribute(attribute:"description", value:
"The BIG-IP Edge Client components in BIG-IP APM, Edge Gateway, and
FirePass legacyallow attackers to obtain the full session ID from
process memory. (CVE-2020-5892)
Impact
An attacker with sufficient local privileges on a client machine
running Windows may be able to gain access to the full session ID.
Note : This vulnerability is limited to the BIG-IP Edge Client, F5
Access, and FirePass legacy client for Windows only; it does not
impact the BIG-IP or FirePass host.");
script_set_attribute(attribute:"see_also", value:"https://my.f5.com/manage/s/article/K15838353");
script_set_attribute(attribute:"solution", value:
"Upgrade to one of the non-vulnerable versions listed in the F5 Solution K15838353.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/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-2020-5892");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/04/30");
script_set_attribute(attribute:"patch_publication_date", value:"2020/04/29");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/06/22");
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:/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) 2020-2023 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 = 'K15838353';
var vmatrix = {
'APM': {
'affected': [
'16.0.0-16.0.1','15.0.0-15.1.1','14.0.0-14.1.3','13.0.0-13.1.3','12.1.0-12.1.5','11.6.1-11.6.5'
],
'unaffected': [
'16.1.0','16.0.1.1','15.1.2','14.1.3.1','13.1.3.5','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 the affected module APM');
}
Vendor | Product | Version | CPE |
---|---|---|---|
f5 | big-ip_access_policy_manager | cpe:/a:f5:big-ip_access_policy_manager | |
f5 | big-ip | cpe:/h:f5:big-ip |