Privilege escalation in IBM VIOS



Published: 2021-01-20
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2020-4887
CWE ID CWE-264
Exploitation vector Local
Public exploit N/A
Vulnerable software
Subscribe
IBM VIOS
Server applications / Application servers

Vendor IBM Corporation

Security Advisory

This security advisory describes one low risk vulnerability.

1) Permissions, Privileges, and Access Controls

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-4887

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the gencore user command allows files creation wit arbitrary content in any directory on the system. A local user can abuse this behavior and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

IBM VIOS: 3.1.0, 3.1.1, 3.1.2

CPE External links

http://aix.software.ibm.com/aix/efixes/security/gencore_advisory.asc

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



###SIDEBAR###