PostgreSQL Anonymizer v1.2 Vulnerability: Elevated Privileges for Malicious Users
CVE-2024-2339

8.8HIGH

Key Information:

Vendor

Dalibo

Status
Postgresql Anonymizer
Vendor
CVE Published:
8 March 2024

What is CVE-2024-2339?

PostgreSQL Anonymizer version 1.2 is susceptible to a vulnerability that allows a user with ownership of a table to achieve superuser privileges. This is accomplished by defining a masking function that contains malicious code. When this function is executed by a privileged user applying the masking rules, the embedded malicious code runs, potentially compromising the database's security. Although the software includes a protective feature called 'restrict_to_trusted_schemas', this measure fails to fully mitigate the risk. Notably, users without ownership of a table, particularly those who are masked, are unable to exploit this vulnerability. The issue is addressed in version 1.3 of the product.

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Affected Version(s)

PostgreSQL Anonymizer 1 < 1.3.0

References

https://gitlab.com/dalibo/postgresql_anonymizer/-/commit/...

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

The PostgreSQL Anonymizer project thanks Pedro Gallegos for reporting this problem.
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