5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
7.2 High
AI Score
Confidence
Low
0.0005 Low
EPSS
Percentile
18.3%
The version of F5 Networks BIG-IP installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the K000139685 advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K000139685.
#
# @NOAGENT@
##
include('compat.inc');
if (description)
{
script_id(197560);
script_version("1.0");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/21");
script_cve_id("CVE-2023-40217");
script_name(english:"F5 Networks BIG-IP : Python vulnerability (K000139685)");
script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch.");
script_set_attribute(attribute:"description", value:
"The version of F5 Networks BIG-IP installed on the remote host is prior to tested version. It is, therefore, affected by
a vulnerability as referenced in the K000139685 advisory.
- An issue was discovered in Python before 3.8.18, 3.9.x before 3.9.18, 3.10.x before 3.10.13, and 3.11.x
before 3.11.5. It primarily affects servers (such as HTTP servers) that use TLS client authentication. If
a TLS server-side socket is created, receives data into the socket buffer, and then is closed quickly,
there is a brief window where the SSLSocket instance will detect the socket as not connected and won't
initiate a handshake, but buffered data will still be readable from the socket buffer. This data will not
be authenticated if the server-side TLS peer is expecting client certificate authentication, and is
indistinguishable from valid TLS stream data. Data is limited in size to the amount that will fit in the
buffer. (The TLS connection cannot directly be used for data exfiltration because the vulnerable code path
requires that the connection be closed on initialization of the SSLSocket.) (CVE-2023-40217)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://my.f5.com/manage/s/article/K000139685");
script_set_attribute(attribute:"solution", value:
"The vendor has acknowledged the vulnerability, but no solution has been provided.
Refer to the vendor for remediation guidance.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
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:L/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-40217");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2023/08/25");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/05/21");
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_security_manager");
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_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_wan_optimization_manager");
script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip_protocol_security_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) 2024 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", "Settings/ParanoidReport");
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');
if (report_paranoia < 2) audit(AUDIT_PARANOID);
var sol = 'K000139685';
var vmatrix = {
'AFM': {
'affected': [
'17.1.0-17.1.1','16.1.0-16.1.4','15.1.0-15.1.10'
],
},
'APM': {
'affected': [
'17.1.0-17.1.1','16.1.0-16.1.4','15.1.0-15.1.10'
],
},
'ASM': {
'affected': [
'17.1.0-17.1.1','16.1.0-16.1.4','15.1.0-15.1.10'
],
},
'DNS': {
'affected': [
'17.1.0-17.1.1','16.1.0-16.1.4','15.1.0-15.1.10'
],
},
'GTM': {
'affected': [
'17.1.0-17.1.1','16.1.0-16.1.4','15.1.0-15.1.10'
],
},
'LTM': {
'affected': [
'17.1.0-17.1.1','16.1.0-16.1.4','15.1.0-15.1.10'
],
},
'PEM': {
'affected': [
'17.1.0-17.1.1','16.1.0-16.1.4','15.1.0-15.1.10'
],
},
'PSM': {
'affected': [
'17.1.0-17.1.1','16.1.0-16.1.4','15.1.0-15.1.10'
],
},
'WOM': {
'affected': [
'17.1.0-17.1.1','16.1.0-16.1.4','15.1.0-15.1.10'
],
}
};
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_protocol_security_manager | cpe:/h:f5:big-ip_protocol_security_manager | |
f5 | big-ip_domain_name_system | cpe:/a:f5:big-ip_domain_name_system | |
f5 | big-ip_policy_enforcement_manager | cpe:/a:f5:big-ip_policy_enforcement_manager | |
f5 | big-ip_wan_optimization_manager | cpe:/a:f5:big-ip_wan_optimization_manager | |
f5 | big-ip | cpe:/h:f5:big-ip | |
f5 | big-ip_advanced_firewall_manager | cpe:/a:f5:big-ip_advanced_firewall_manager | |
f5 | big-ip_local_traffic_manager | cpe:/a:f5:big-ip_local_traffic_manager | |
f5 | big-ip_access_policy_manager | cpe:/a:f5:big-ip_access_policy_manager | |
f5 | big-ip_global_traffic_manager | cpe:/a:f5:big-ip_global_traffic_manager | |
f5 | big-ip_application_security_manager | cpe:/a:f5:big-ip_application_security_manager |
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
7.2 High
AI Score
Confidence
Low
0.0005 Low
EPSS
Percentile
18.3%