Description (CNA)
The PPTP VPN service in Watchguard Firebox before 10, when performing the MS-CHAPv2 authentication handshake, generates different error codes depending on whether the username is valid or invalid, which allows remote attackers to enumerate valid usernames.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / n/a | affected n/a |
CWE
No CWE identifiers supplied.
References
- http://www.mwrinfosecurity.com/publications/mwri_watchguard-firebox-pptp-vpn-user-enumeration-advisory_2008-04-04.pdf
- http://www.osvdb.org/44218
- http://www.vupen.com/english/advisories/2008/1152/references
- http://www.securityfocus.com/bid/28619
- https://exchange.xforce.ibmcloud.com/vulnerabilities/41683
- http://secunia.com/advisories/29708
- http://www.securitytracker.com/id?1019796
ADP enrichment
No English description supplied.
- http://www.mwrinfosecurity.com/publications/mwri_watchguard-firebox-pptp-vpn-user-enumeration-advisory_2008-04-04.pdf
- http://www.osvdb.org/44218
- http://www.vupen.com/english/advisories/2008/1152/references
- http://www.securityfocus.com/bid/28619
- https://exchange.xforce.ibmcloud.com/vulnerabilities/41683
- http://secunia.com/advisories/29708
- http://www.securitytracker.com/id?1019796