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.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Instant_virtual_extranet | Neoteris | 3.0 (including) | 3.0 (including) |
| Instant_virtual_extranet | Neoteris | 3.1 (including) | 3.1 (including) |
| Instant_virtual_extranet | Neoteris | 3.2 (including) | 3.2 (including) |
| Instant_virtual_extranet | Neoteris | 3.3 (including) | 3.3 (including) |
| Instant_virtual_extranet | Neoteris | 3.3.1 (including) | 3.3.1 (including) |
References
- http://marc.info/?l=bugtraq\u0026m=112438068426034\u0026w=2
- http://secunia.com/advisories/16474/
- http://securitytracker.com/id?1014728
- http://www.nta-monitor.com/news/vpn-flaws/juniper/netscreen/index.htm
- http://www.securityfocus.com/bid/14595
- http://marc.info/?l=bugtraq\u0026m=112438068426034\u0026w=2
- http://secunia.com/advisories/16474/
- http://securitytracker.com/id?1014728
- http://www.nta-monitor.com/news/vpn-flaws/juniper/netscreen/index.htm
- http://www.securityfocus.com/bid/14595