VDB-154655 · CVE-2020-5875 · GCVE-0-2020-5875

F5 BIG-IP up to 14.1.2.3/15.0.1 Traffic Management Microkernel denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in F5 BIG-IP up to 14.1.2.3/15.0.1. The affected element is an unknown function of the component Traffic Management Microkernel. The manipulation leads to denial of service. This vulnerability is referenced as CVE-2020-5875. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in F5 BIG-IP up to 14.1.2.3/15.0.1 (Firewall Software). It has been rated as problematic. This issue affects an unknown code of the component Traffic Management Microkernel. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

On BIG-IP 15.0.0-15.0.1 and 14.1.0-14.1.2.3, under certain conditions, the Traffic Management Microkernel (TMM) may generate a core file and restart while processing SSL traffic with an HTTP/2 full proxy.

The weakness was published 04/30/2020 (Website). It is possible to read the advisory at support.f5.com. The identification of this vulnerability is CVE-2020-5875 since 01/06/2020. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/01/2020). The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entries are available at VDB-154658, VDB-154657, VDB-154656 and VDB-154652. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Firewall Software

Vendor

Name

BIG-IP

Version

License

commercial

Website

Vendor: https://f5.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/06/2020 🔍
04/30/2020 +115 days 🔍
05/01/2020 +1 days 🔍
10/14/2020 +166 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: support.f5.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-5875 (🔍)
GCVE (CVE): GCVE-0-2020-5875
GCVE (VulDB): GCVE-100-154655
See also: 🔍

Entryinfo

Created: 05/01/2020 09:07
Updated: 10/14/2020 17:42
Changes: 05/01/2020 09:07 (38), 05/01/2020 09:12 (18), 10/14/2020 17:42 (1)
Complete: 🔍
Cache ID: 216::103