The PPTP VPN service in Watchguard Firebox before 10, when...
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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
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Timeline
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.