The mailguard feature in Cisco Secure PIX Firewall 5.2(2) and earlier does not properly restrict access to SMTP commands, which allows remote attackers to execute restricted commands by sending a DATA command before sending the restricted commands.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Pix_firewall_software | Cisco | 4.2(1) (including) | 4.2(1) (including) |
| Pix_firewall_software | Cisco | 4.2(2) (including) | 4.2(2) (including) |
| Pix_firewall_software | Cisco | 4.2(5) (including) | 4.2(5) (including) |
| Pix_firewall_software | Cisco | 4.3 (including) | 4.3 (including) |
| Pix_firewall_software | Cisco | 4.4(4) (including) | 4.4(4) (including) |
| Pix_firewall_software | Cisco | 5.0 (including) | 5.0 (including) |
| Pix_firewall_software | Cisco | 5.1 (including) | 5.1 (including) |
| Pix_firewall_software | Cisco | 5.2 (including) | 5.2 (including) |
References
- http://archives.neohapsis.com/archives/bugtraq/2000-09/0222.html
- http://archives.neohapsis.com/archives/bugtraq/2000-09/0241.html
- http://www.cisco.com/warp/public/707/PIXfirewallSMTPfilter-pub.shtml
- http://www.securityfocus.com/bid/1698
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5277
- http://archives.neohapsis.com/archives/bugtraq/2000-09/0222.html
- http://archives.neohapsis.com/archives/bugtraq/2000-09/0241.html
- http://www.cisco.com/warp/public/707/PIXfirewallSMTPfilter-pub.shtml
- http://www.securityfocus.com/bid/1698
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5277