Vulnerability · Published Mar 8, 2024 · Assigned by PostgreSQL
CVE-2024-2339Improper Input Validation in PostgreSQL Anonymizer 1.2 allows table owner to gain superuser privileges via masking rule
High 8.0
In plain English
A high-severity improper input validation in PostgreSQL Anonymizer from DALIBO. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 46% of all known vulnerabilities).
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| DALIBO | PostgreSQL Anonymizer | 1 – before 1.3.0 |
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H