Security restrictions bypass in PostgreSQL

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU66429

Risk: Low

CVSSv3.1: 3.7 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-2625

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

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

The vulnerability exists due to extension scripts can replace objects that do not belong to the extension when using the CREATE OR REPLACE or CREATE IF NOT EXISTS commands. A remote user with (1) permissions to create non-temporary objects in at least one schema, (2) ability to lure or wait for an administrator to create or update an affected extension in that schema, and (3) ability to lure or wait for a victim to use the object targeted in CREATE OR REPLACE or CREATE IF NOT EXISTS can run arbitrary code as the victim role.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

PostgreSQL: 10.4 - 14.4

External links

http://www.postgresql.org/about/news/postgresql-145-138-1212-1117-1022-and-15-beta-3-released-2496/

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.