Privilege escalation in PostgreSQL

1) Time-of-check Time-of-use (TOCTOU) Race Condition

EUVDB-ID: #VU95605

Risk: Low

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-7348

CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Exploit availability: No

Description

The vulnerability allows a remote user to escalate privileges within the database.

The vulnerability exists due to a race condition when executing concurrent pg_dump sessions. A remote user with privileges to create and drop non-temporary objects can execute arbitrary SQL commands with the privileges of the role running pg_dump (which is often a superuser).

Mitigation

Install updates from vendor's website.

Vulnerable software versions

PostgreSQL: 12 - 16.3

External links

http://www.postgresql.org/support/security/CVE-2024-7348/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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