Description
Behavioral discrepancy information leak in Juniper Netscreen VPN running ScreenOS 5.2.0 and earlier, when using IKE with pre-shared key authentication, allows remote attackers to enumerate valid usernames via an IKE Aggressive Mode packet, which generates a response if the username is valid but does not respond when the username is invalid.
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
- Juniper NetScreen 5.0 - VPN 'Username' Enumeration EDB-26168 · remote · Aug 18, 2005 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 14595 vdb-entry
- 20050818 Juniper Netscreen VPN Username Enumeration Vulnerability mailing-list
- http://www.nta-monitor.com/news/vpn-flaws/juniper/netscreen/index.htm
- 1014728 vdb-entry
- 16474 third-party-advisory