CVE-2020-10733 Path traversal in PostgreSQL

What is CVE-2020-10733?

CVE-2020-10733 is a high-severity path traversal vulnerability in Postgresql Postgresql, published on 16 Sep 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

The Windows installer for PostgreSQL 9.5 - 12 invokes system-provided executables that do not have fully-qualified paths. Executables in the directory where the installer loads or the current working directory take precedence over the intended executables. An attacker having permission to add files into one of those directories can use this to execute arbitrary code with the installer's administrative rights.

Weakness: CWE-426

Which versions are affected by CVE-2020-10733?

1 open source package ship an affected version, including postgresql. It affects 1 product.

Products include Postgresql Postgresql.

How do I fix CVE-2020-10733?

Upgrade postgresql to a fixed version for your release line: 9.5.22, 9.6.18, 10.13.0 or 11.8.0.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2020-10733 being exploited?

There is no known exploitation of CVE-2020-10733 in the wild and no public exploit code.

Other vulnerabilities in Postgresql Postgresql

• CVE-2013-1902 Information disclosure in n/a Critical 10.0
• CVE-2013-1903 Information disclosure in n/a Critical 10.0
• CVE-2007-3279 Privilege escalation in n/a Critical 10.0
• CVE-2002-1399 Integer overflow in n/a Critical 10.0
• CVE-2016-3065 Information disclosure in n/a Critical 9.1

All Postgresql Postgresql vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-postgresql-2020-10733, GHSA-r2p6-249c-3h56.