CVE-2024-2339 Improper Input Validation in PostgreSQL Anonymizer 1.2 allows table owner to gain superuser privileges via masking rule
A table owner can gain superuser privileges by injecting malicious code into masking rules, which executes when applied by privileged users.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-2339?
CVE-2024-2339 is a high-severity vulnerability in DALIBO PostgreSQL Anonymizer, published on 8 Mar 2024. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
PostgreSQL Anonymizer v1.2 contains a vulnerability that allows a user who owns a table to elevate to superuser. A user can define a masking function for a column and place malicious code in that function. When a privileged user applies the masking rules using the static masking or the anonymous dump method, the malicious code is executed and can grant escalated privileges to the malicious user. PostgreSQL Anonymizer v1.2 does provide a protection against this risk with the restrict_to_trusted_schemas option, but that protection is incomplete. Users that don't own a table, especially masked users cannot exploit this vulnerability. The problem is resolved in v1.3.
Weakness: CWE-20
Which versions are affected by CVE-2024-2339?
It affects 1 product.
Products include Dalibo Anonymizer.
How do I fix CVE-2024-2339?
No fix has been published for CVE-2024-2339 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-2339 being exploited?
There is no known exploitation of CVE-2024-2339 in the wild and no public exploit code.
Other vulnerabilities in DALIBO PostgreSQL Anonymizer
Sources
Also known as GHSA-fvc5-hrmq-8hx4.