F5 BIG-IP up to 11.5.6/12.1.3.1/13.0.0/13.1.0.5 TMM SSL input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in F5 BIG-IP up to 11.5.6/12.1.3.1/13.0.0/13.1.0.5. This affects an unknown part of the component TMM. The manipulation results in input validation (SSL). This vulnerability is reported as CVE-2018-5534. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in F5 BIG-IP up to 11.5.6/12.1.3.1/13.0.0/13.1.0.5 (Firewall Software). It has been classified as critical. Affected is an unknown part of the component TMM. The manipulation with an unknown input leads to a input validation vulnerability (SSL). CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Under certain conditions on F5 BIG-IP 13.1.0-13.1.0.5, 13.0.0, 12.1.0-12.1.3.1, 11.6.0-11.6.3.1, or 11.5.0-11.5.6, TMM may core while processing SSL forward proxy traffic.

The bug was discovered 07/19/2018. The weakness was disclosed 07/19/2018 (Website). The advisory is shared for download at support.f5.com. This vulnerability is traded as CVE-2018-5534 since 01/12/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 118690 (F5 Networks BIG-IP : SSL forward proxy vulnerability (K64552448)), 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 371088 (F5 BIG-IP ASM SSL forward proxy vulnerability (K64552448)).

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 vulnerability database at Tenable (118690). The entries VDB-121994, VDB-121993, VDB-121991 and VDB-121990 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: SSL
Class: Input validation / SSL
CWE: CWE-20
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: 118690
Nessus Name: F5 Networks BIG-IP : SSL forward proxy vulnerability (K64552448)
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

01/12/2018 🔍
07/18/2018 +187 days 🔍
07/19/2018 +0 days 🔍
07/19/2018 +0 days 🔍
07/19/2018 +0 days 🔍
07/20/2018 +1 days 🔍
11/02/2018 +105 days 🔍
04/18/2023 +1628 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K64552448
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-5534 (🔍)
GCVE (CVE): GCVE-0-2018-5534
GCVE (VulDB): GCVE-100-121992
SecurityTracker: 1041343

See also: 🔍

Entryinfo

Created: 07/20/2018 08:59
Updated: 04/18/2023 20:03
Changes: 07/20/2018 08:59 (67), 03/08/2020 20:34 (4), 04/18/2023 20:03 (5)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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