Description (CNA)
Improper Encoding or Escaping of Output vulnerability in the RemoteSyslogAppender of Apache log4net. Every character outside visible ASCII and space was removed from the record instead of being escaped, so non-ASCII text and control characters such as tabs disappeared without notice. A party whose data reaches a log message could make a distinct value look identical in the record, for example a user name holding a zero-width space logged as admin. Only applications that use RemoteSyslogAppender are affected. This issue affects Apache log4net: from 1.2.12 before 3.5.0. Users are recommended to upgrade to version 3.5.0, which fixes the issue.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Apache Software Foundation / Apache log4net | affected 1.2.12 before 3.5.0 |
| Apache Software Foundation / Apache log4net | affected 56a2e146e21ff4737e1ff3ec308810e667873947 before 77717061b20d4346b6c0ce6b54643d85fb348bc7 |
CWE
CWE-116
References
- https://github.com/apache/logging-log4net/pull/315
- https://github.com/apache/logging-log4net/commit/77717061b20d4346b6c0ce6b54643d85fb348bc7
- https://lists.apache.org/thread.html/q7649hhdodthoqw8jsjgtnb4m8qfy6d6
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.