Description
The updateuser servlet in Neon WebMail for Java before 5.08 does not validate the in_id parameter, which allows remote attackers to modify information of arbitrary users, as demonstrated by modifying (1) passwords and (2) permissions, (3) viewing profile settings, and (4) creating and (5) deleting users.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- NeoSys Neon Webmail for Java 5.06/5.07 - 'updateuser?in_id' Servlet Arbitrary User Information Modification EDB-28609 · webapps · Sep 20, 2006 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 20109 vdb-entry
- http://vuln.sg/neonmail506-en.html
- 22029 third-party-advisory
- neonwebmail-updateuser-security-bypass(29089) vdb-entry
- 84203 vdb-entry