F5 BIG-IP ASM up to 13.1.0.7 CSRF Protection input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in F5 BIG-IP ASM up to 11.2.1/11.5.6/11.6.3.1/12.1.3.5/13.1.0.7. It has been classified as problematic. This impacts an unknown function of the component CSRF protection. This manipulation causes input validation. This vulnerability is tracked as CVE-2018-5539. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in F5 BIG-IP ASM up to 11.2.1/11.5.6/11.6.3.1/12.1.3.5/13.1.0.7 (Firewall Software) and classified as problematic. Affected by this vulnerability is an unknown code block of the component CSRF Protection. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. The summary by CVE is:

Under certain conditions, on F5 BIG-IP ASM 13.0.0-13.1.0.7, 12.1.0-12.1.3.5, 11.6.0-11.6.3.1, 11.5.1-11.5.6, or 11.2.1, when processing CSRF protections, the BIG-IP ASM bd process may restart and produce a core file.

The bug was discovered 07/25/2018. The weakness was disclosed 07/25/2018 (Website). The advisory is shared at support.f5.com. This vulnerability is known as CVE-2018-5539 since 01/11/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 118696 (F5 Networks BIG-IP : BIG-IP ASM vulnerability (K75432956)), 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 371103 (F5 BIG-IP ASM bd process restarting vulnerability (K75432956)).

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

The vulnerability is also documented in the databases at Tenable (118696) and SecurityFocus (BID 104921†). The entry VDB-122198 is pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
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: 118696
Nessus Name: F5 Networks BIG-IP : BIG-IP ASM vulnerability (K75432956)
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

01/11/2018 🔍
07/24/2018 +193 days 🔍
07/25/2018 +0 days 🔍
07/25/2018 +0 days 🔍
07/25/2018 +0 days 🔍
07/25/2018 +0 days 🔍
07/26/2018 +1 days 🔍
11/02/2018 +99 days 🔍
04/25/2023 +1635 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K75432956
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-5539 (🔍)
GCVE (CVE): GCVE-0-2018-5539
GCVE (VulDB): GCVE-100-122197
SecurityFocus: 104921 - F5 BIG-IP ASM CVE-2018-5539 Remote Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 07/26/2018 07:52
Updated: 04/25/2023 17:32
Changes: 07/26/2018 07:52 (69), 03/10/2020 10:55 (6), 04/25/2023 17:32 (4)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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