CVE Vulnerabilities

CVE-2020-5887

Exposure of Resource to Wrong Sphere

Published: Apr 30, 2020 | Modified: May 04, 2020
CVSS 3.x
9.1
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS 2.x
6.4 MEDIUM
AV:N/AC:L/Au:N/C:P/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu

On versions 15.1.0-15.1.0.1, 15.0.0-15.0.1.2, and 14.1.0-14.1.2.3, BIG-IP Virtual Edition (VE) may expose a mechanism for remote attackers to access local daemons and bypass port lockdown settings.

Weakness

The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.

Affected Software

Name Vendor Start Version End Version
Big-ip_access_policy_manager F5 14.1.0 (including) 14.1.2.3 (including)
Big-ip_access_policy_manager F5 15.0.0 (including) 15.0.1.2 (including)
Big-ip_access_policy_manager F5 15.1.0 (including) 15.1.0.1 (including)

Extended Description

Resources such as files and directories may be inadvertently exposed through mechanisms such as insecure permissions, or when a program accidentally operates on the wrong object. For example, a program may intend that private files can only be provided to a specific user. This effectively defines a control sphere that is intended to prevent attackers from accessing these private files. If the file permissions are insecure, then parties other than the user will be able to access those files. A separate control sphere might effectively require that the user can only access the private files, but not any other files on the system. If the program does not ensure that the user is only requesting private files, then the user might be able to access other files on the system. In either case, the end result is that a resource has been exposed to the wrong party.

References