#VU15919 Privilege escalation in IBM DB2 - CVE-2018-1780

Vulnerability identifier: #VU15919

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-1780

CWE-ID: CWE-61

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
IBM DB2
Server applications / Database software

Vendor: IBM Corporation

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists due to improper privileges and access controls. A a local db2 instance owner can exploit a symbolic link attack to read/write/corrupt a file that he originally did not have permission to access and obtain root access to the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

IBM DB2: 9.7 - 9.7.0.11, 10.1.0.0 - 10.1.0.6, 10.5.0.0 - 10.5.0.10, 11.1 FP1 - 11.1.3.3 iFix002

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External links
https://www-01.ibm.com/support/docview.wss?uid=ibm10733939

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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.