CVE-2024-2339: Improper Input Validation in PostgreSQL Anonymizer 1.2 allows table owner to gain superuser privileges via masking rule
First published: Fri Mar 08 2024(Updated: )
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.
Credit: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PostgreSQL Anonymizer | =1.2 | |
| Dalibo Anonymizer Postgresql | =1.2.0 |
Remedy
https://gitlab.com/dalibo/postgresql_anonymizer/-/commit/e517b38e62e50871b04011598e73a7308bdae9d9
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-2339?
CVE-2024-2339 has a high severity rating due to its potential to allow unauthorized elevation of privileges.
How do I fix CVE-2024-2339?
To fix CVE-2024-2339, update PostgreSQL Anonymizer to a version that addresses this vulnerability.
Who is affected by CVE-2024-2339?
CVE-2024-2339 affects users of PostgreSQL Anonymizer version 1.2 who have ownership of tables.
What type of vulnerability is CVE-2024-2339?
CVE-2024-2339 is a privilege escalation vulnerability that allows users to gain superuser access.
What can attackers do with CVE-2024-2339?
Attackers can exploit CVE-2024-2339 to execute malicious code through masking functions, potentially compromising the database.
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