Vulnerability identifier: #VU58796

Vulnerability risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-4976

CWE-ID: CWE-276

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
IBM DB2
Server applications / Database software

Vendor: IBM Corporation

Description

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

The vulnerability exists due to incorrect default permissions for files and folders that are set by the application. A local user with access to the system can view contents of files and directories or modify them.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

IBM DB2: 11.5 - 11.5.6.0, 11.1 FP1 - 11.1.4.6, 10.5 - 10.5.0.11, 10.1 - 10.1.0.6, 9.7 - 9.7.0.11

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External links
http://www.ibm.com/support/pages/node/6489495
http://www.ibm.com/support/pages/node/6427859
http://www.ibm.com/blogs/psirt/security-bulletin-ibm-db2-could-allow-a-local-user-to-read-and-write-specific-files-due-to-weak-file-permissions-cve-2020-4976-6/

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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.