CVE-2020-5855: Medium severity F5 BIG-IP Access Policy Manager vulnerability

Published Feb 6, 2020
·
Updated

When the Windows Logon Integration feature is configured for all versions of BIG-IP Edge Client for Windows, unauthorized users who have physical access to an authorized user's machine can get shell access under unprivileged user.

Affected Software

14 affected components
F5 BIG-IP Access Policy Manager>=11.5.2<=11.6.5
F5 BIG-IP Access Policy Manager>=12.1.0<=12.1.5
F5 BIG-IP Access Policy Manager>=13.1.0<=13.1.3
F5 BIG-IP Access Policy Manager>=14.1.0<=14.1.2
F5 BIG-IP Access Policy Manager>=15.0.0<=15.1.0
F5 Big-ip Access Policy Manager Client>=7.1.5<=7.1.8
Microsoft Windows
All of the following
Any of the following
F5 BIG-IP Access Policy Manager>=11.5.2<=11.6.5
F5 BIG-IP Access Policy Manager>=12.1.0<=12.1.5
F5 BIG-IP Access Policy Manager>=13.1.0<=13.1.3
F5 BIG-IP Access Policy Manager>=14.1.0<=14.1.2
F5 BIG-IP Access Policy Manager>=15.0.0<=15.1.0
F5 Big-ip Access Policy Manager Client>=7.1.5<=7.1.8
Microsoft Windows

Event History

Feb 6, 2020
CVE Published
via MITRE·03:37 PM
Data Sourced
via MITRE·03:37 PM
DescriptionWeakness
Data Sourced
via NVD·04:15 PM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

What is CVE-2020-5855?

CVE-2020-5855 is a vulnerability that allows unauthorized users to get shell access on a machine running BIG-IP Edge Client for Windows.

2

What is the severity level of CVE-2020-5855?

CVE-2020-5855 has a severity level of 4.3, which is considered medium.

3

Which software versions are affected by CVE-2020-5855?

CVE-2020-5855 affects all versions of BIG-IP Access Policy Manager for Windows up to version 15.1.0 and BIG-IP Access Policy Manager Client for Windows up to version 7.1.8.

4

How can unauthorized users exploit CVE-2020-5855?

Unauthorized users with physical access to an authorized user's machine can exploit CVE-2020-5855 to gain shell access as an unprivileged user.

5

How can I fix CVE-2020-5855?

To fix CVE-2020-5855, it is recommended to update BIG-IP Access Policy Manager and BIG-IP Access Policy Manager Client to the latest patched versions provided by F5.

Contact

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