Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.6(Rel), when configured with all tunnel mode, can be forced into acknowledging a TCP packet from outside the tunnel.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Vpn_client | Cisco | 2.0 (including) | 2.0 (including) |
| Vpn_client | Cisco | 3.0 (including) | 3.0 (including) |
| Vpn_client | Cisco | 3.0.5 (including) | 3.0.5 (including) |
| Vpn_client | Cisco | 3.1 (including) | 3.1 (including) |
| Vpn_client | Cisco | 3.5.1 (including) | 3.5.1 (including) |
| Vpn_client | Cisco | 3.5.1c (including) | 3.5.1c (including) |
References
- http://www.cisco.com/warp/public/707/vpnclient-multiple2-vuln-pub.shtml
- http://www.securityfocus.com/bid/5651
- https://exchange.xforce.ibmcloud.com/vulnerabilities/10047
- http://www.cisco.com/warp/public/707/vpnclient-multiple2-vuln-pub.shtml
- http://www.securityfocus.com/bid/5651
- https://exchange.xforce.ibmcloud.com/vulnerabilities/10047