Unchecked Class Instantiation when providing Plugin Classes
CVE-2022-21724

7HIGH

Key Information:

Vendor
Postgresql
Status
Postgresql Jdbc Driver
Vendor
CVE Published:
2 February 2022

Summary

pgjdbc is the offical PostgreSQL JDBC Driver. A security hole was found in the jdbc driver for postgresql database while doing security research. The system using the postgresql library will be attacked when attacker control the jdbc url or properties. pgjdbc instantiates plugin instances based on class names provided via authenticationPluginClassName, sslhostnameverifier, socketFactory, sslfactory, sslpasswordcallback connection properties. However, the driver did not verify if the class implements the expected interface before instantiating the class. This can lead to code execution loaded via arbitrary classes. Users using plugins are advised to upgrade. There are no known workarounds for this issue.

References

https://github.com/pgjdbc/pgjdbc/security/advisories/GHSA...
x_refsource_CONFIRM
https://github.com/pgjdbc/pgjdbc/commit/f4d0ed69c0b3aae85...
x_refsource_MISC
https://security.netapp.com/advisory/ntap-20220311-0005/
x_refsource_CONFIRM

CVSS V3.1

Score:
7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.