Description
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 products
- Cisco / pix_firewall_software4.2(1) – 4.2(1)
- Cisco / pix_firewall_software4.2(2) – 4.2(2)
- Cisco / pix_firewall_software4.2(5) – 4.2(5)
- Cisco / pix_firewall_software4.3 – 4.3
- Cisco / pix_firewall_software4.4(4) – 4.4(4)
- Cisco / pix_firewall_software5.0 – 5.0
- Cisco / pix_firewall_software5.1 – 5.1
- Cisco / pix_firewall_software5.2 – 5.2
References
- MISChttp://www.securityfocus.com/bid/1698
- MISChttps://exchange.xforce.ibmcloud.com/vulnerabilities/5277
- VENDOR_ADVISORYhttp://www.cisco.com/warp/public/707/PIXfirewallSMTPfilter-pub.shtml
- MISChttp://archives.neohapsis.com/archives/bugtraq/2000-09/0241.html
- MISChttp://archives.neohapsis.com/archives/bugtraq/2000-09/0222.html