You are viewing a plain text version of this content. The canonical link for it is here.
Posted to notifications@logging.apache.org by "SpaceLeam (via GitHub)" <gi...@apache.org> on 2025/11/30 11:15:48 UTC
[PR] Add PoC for CWE-117 CRLF injection in RemoteSyslogAppender (logging-log4net)
SpaceLeam opened a new pull request, #273:
URL: https://github.com/apache/logging-log4net/pull/273
Demonstrates vulnerability in log4net RemoteSyslogAppender where CRLF characters in log messages create multiple syslog entries, allowing log forgery and SIEM evasion.
Test cases:
- Baseline normal logging
- Single CRLF injection (2 entries from 1 call)
- Multiple CRLF (log poisoning)
- Null byte + CRLF
- UDP fragmentation
- Realistic attack scenario
Target: log4net v3.2.1 master branch
Issue: LOG4NET-370 (incomplete fix)
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: notifications-unsubscribe@logging.apache.org
For queries about this service, please contact Infrastructure at:
users@infra.apache.org
Re: [PR] Add PoC for CWE-117 CRLF injection in RemoteSyslogAppender (logging-log4net)
Posted by "ppkarwasz (via GitHub)" <gi...@apache.org>.
ppkarwasz closed pull request #273: Add PoC for CWE-117 CRLF injection in RemoteSyslogAppender
URL: https://github.com/apache/logging-log4net/pull/273
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: notifications-unsubscribe@logging.apache.org
For queries about this service, please contact Infrastructure at:
users@infra.apache.org