CVE-2020-5906 - Incorrect Default Permissions

Severity

81%

Complexity

27%

Confidentiality

86%

In versions 13.1.0-13.1.3.3, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, the BIG-IP system does not properly enforce the access controls for the scp.blacklist files. This allows Admin and Resource Admin users with Secure Copy (SCP) protocol access to read and overwrite blacklisted files via SCP.

CVSS 3.1 Base Score 8.1. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).

CVSS 2.0 Base Score 5.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:S/C:P/I:P/A:N).

Overview

Type

F5

First reported 4 years ago

2020-07-01 15:15:00

Last updated 4 years ago

2020-07-08 22:15:00

Affected Software

F5 Big-IP Access Policy Manager (APM)

F5 Big-IP Advanced Firewall Manager (AFM)

F5 Big-IP Analytics

F5 Big-IP Application Acceleration Manager (AAM)

F5 Big-IP Application Security Manager (ASM)

F5 Big-IP Domain Name System (DNS)

F5 Big-IP Fraud Protection Service (FPS)

F5 Big-IP Global Traffic Manager (GTM)

F5 Big-IP Link Controller

F5 Networks Big-IP Local Traffic Manager (LTM)

F5 Big-IP Policy Enforcement Manager (PEM)

References

https://support.f5.com/csp/article/K82518062

https://support.f5.com/csp/article/K82518062

Vendor Advisory

VU#290915

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