CVE-2023-32305 aiven-extras PostgreSQL Privilege Escalation Through Overloaded Search Path

High 8.8 Published Updated

A low-privileged user can escalate to superuser privileges in PostgreSQL via the aiven-extras extension, potentially leading to arbitrary code execution on the host.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-32305?

CVE-2023-32305 is a high-severity vulnerability in aiven-extras, published on 12 May 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

aiven-extras is a PostgreSQL extension. Versions prior to 1.1.9 contain a privilege escalation vulnerability, allowing elevation to superuser inside PostgreSQL databases that use the aiven-extras package. The vulnerability leverages missing schema qualifiers on privileged functions called by the aiven-extras extension. A low privileged user can create objects that collide with existing function names, which will then be executed instead. Exploiting this vulnerability could allow a low privileged user to acquire `superuser` privileges, which would allow full, unrestricted access to all data and database functions. And could lead to arbitrary code execution or data access on the underlying host as the `postgres` user. The issue has been patched as of version 1.1.9.

Weakness: CWE-20, CWE-1321

Which versions are affected by CVE-2023-32305?

It affects 1 product.

Products include Aiven Aiven.

How do I fix CVE-2023-32305?

No fix has been published for CVE-2023-32305 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-32305 being exploited?

There is no known exploitation of CVE-2023-32305 in the wild and no public exploit code.

Sources

Also known as GHSA-7r4w-fw4h-67gp.

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