Summary
Successful exploitation of this vulnerability could allow an attacker to launch XXE-based attacks on applications that accept malicious log4net configuration files.
Vulnerabilities 1
-
Critical 9.8
XML External Entity attack in log4net
Apache log4net versions before 2.0.10 do not disable XML external entities when parsing log4net configuration files. This allows for XXE-based attacks in applications that accept attacker-controlled log4net configuration files.
Revision history
-
#1
Initial Publication
References
-
ICSA Advisory ICSA-25-142-02 - Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-25-142-02
-
Recommended Practices
https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01
-
Recommended Practices
https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
-
Recommended Practices
https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
-
Recommended Practices
https://www.cisa.gov/topics/industrial-control-systems
-
Recommended Practices
https://www.cisa.gov/uscert/sites/default/files/publications/emailscams0905.pdf
-
Recommended Practices
https://www.cisa.gov/uscert/ncas/tips/ST04-014
-
Recommended Practices
https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
-
Recommended Practices
https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B