Vulnerability identifier: #VU27923

Vulnerability risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-10733

CWE-ID: CWE-426

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
PostgreSQL
Server applications / Database software

Vendor: PostgreSQL Global Development Group

Description

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

The vulnerability exists due to Windows installer runs  executables from uncontrolled directories. A local user can trick the victim to install PostgreSQL from a directory that contains a malicious files and execute arbitrary code on the system with elevated privileges.

Note, this vulnerability affects Windows installer only.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

PostgreSQL: 12.0 - 12.2, 11.0 - 11.7, 10.0 - 10.12, 9.6.0 - 9.6.17, 9.5.0 - 9.5.21, 9.4.0 - 9.4.26, 9.3.0 - 9.3.25, 9.2.0 - 9.2.24, 9.1.0 - 9.1.24, 9.0.0 - 9.0.23

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External links
http://www.postgresql.org/about/news/2038/

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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.