F5 BIG-IP APM up to 11.6.3.2/12.1.3.5/13.1.0.7/14.0.0.2 CRLDP Auth Access Policy Agent Revoked Certificate certificate validation

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in F5 BIG-IP APM up to 11.6.3.2/12.1.3.5/13.1.0.7/14.0.0.2. The impacted element is an unknown function of the component CRLDP Auth Access Policy Agent. Executing a manipulation as part of Revoked Certificate can lead to certificate validation. The identification of this vulnerability is CVE-2018-15326. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in F5 BIG-IP APM up to 11.6.3.2/12.1.3.5/13.1.0.7/14.0.0.2 (Firewall Software) and classified as critical. This vulnerability affects an unknown function of the component CRLDP Auth Access Policy Agent. The manipulation as part of a Revoked Certificate leads to a certificate validation vulnerability. The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In some situations on BIG-IP APM 14.0.0-14.0.0.2, 13.0.0-13.1.0.7, 12.1.0-12.1.3.5, or 11.6.0-11.6.3.2, the CRLDP Auth access policy agent may treat revoked certificates as valid when the BIG-IP APM system fails to download a new Certificate Revocation List.

The bug was discovered 10/31/2018. The weakness was shared 10/30/2018 (Website). The advisory is shared for download at support.f5.com. This vulnerability was named CVE-2018-15326 since 08/14/2018. The attack can be initiated remotely. The successful exploitation requires a single authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1587.003.

The vulnerability scanner Nessus provides a plugin with the ID 118656 (F5 Networks BIG-IP : BIG-IP APM CRL vulnerability (K34652116)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family F5 Networks Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371363 (F5 BIG-IP APM CRL Vulnerability (K34652116)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (118656) and SecurityFocus (BID 106180†). The entry VDB-126362 is related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.7

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 118656
Nessus Name: F5 Networks BIG-IP : BIG-IP APM CRL vulnerability (K34652116)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/14/2018 🔍
10/30/2018 +77 days 🔍
10/30/2018 +0 days 🔍
10/31/2018 +0 days 🔍
10/31/2018 +0 days 🔍
11/01/2018 +1 days 🔍
11/02/2018 +1 days 🔍
12/12/2018 +40 days 🔍
06/04/2023 +1635 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K34652116
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-15326 (🔍)
GCVE (CVE): GCVE-0-2018-15326
GCVE (VulDB): GCVE-100-126364
SecurityFocus: 106180 - Multiple F5 BIG-IP Products CVE-2018-15326 Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 11/01/2018 05:59
Updated: 06/04/2023 09:04
Changes: 11/01/2018 05:59 (69), 04/09/2020 11:26 (6), 06/04/2023 09:04 (4)
Complete: 🔍
Cache ID: 216::103

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