Monday, July 12, 2021

MediaWiki: Loop with Unreachable Exit Condition ('Infinite Loop') (CVE-2021-36125)

Description
An issue was discovered in the CentralAuth extension in MediaWiki through 1.36. The Special:GlobalRenameRequest page is vulnerable to infinite loops and denial of service attacks when a user's current username is beyond an arbitrary maximum configuration value (MaxNameChars).
Solution(s)
  • mediawiki-upgrade-latest


  • References
  • https://attackerkb.com/topics/cve-2021-36125
  • CVE - 2021-36125
  • https://gerrit.wikimedia.org/r/q/I97d8b3236b5abed8ba9a9c4d3ab5050c2e782c22
  • https://phabricator.wikimedia.org/T260865




  •  

    Copyright © 2020 Cyber Details - Vulnerability Database™

    Thanks for everything Templateism - You should have written the code a little more complicated