NetBSD ftpd Firewall State Table Corruption Vulnerability
BID:6225
Info
NetBSD ftpd Firewall State Table Corruption Vulnerability
| Bugtraq ID: | 6225 |
| Class: | Input Validation Error |
| CVE: | |
| Remote: | Yes |
| Local: | No |
| Published: | Nov 21 2002 12:00AM |
| Updated: | Nov 21 2002 12:00AM |
| Credit: | Vulnerability anounced in a NetBSD security advisory. |
| Vulnerable: |
NetBSD NetBSD 1.6 NetBSD NetBSD 1.5.3 NetBSD NetBSD 1.5.2 NetBSD NetBSD 1.5.1 NetBSD NetBSD 1.5 |
| Not Vulnerable: | |
Discussion
NetBSD ftpd Firewall State Table Corruption Vulnerability
It has been discovered that NetBSD fails to escape non-response digits present in ftp requests. By passing a maliciously constructed FTP request containing an unescaped non-response digit, it may be possible to corrupt a firewalls stateful inspection of FTP traffic. Though not confirmed, exploitation of this vulnerability may expose vulnerable services to attackers.
It has been discovered that NetBSD fails to escape non-response digits present in ftp requests. By passing a maliciously constructed FTP request containing an unescaped non-response digit, it may be possible to corrupt a firewalls stateful inspection of FTP traffic. Though not confirmed, exploitation of this vulnerability may expose vulnerable services to attackers.
Exploit / POC
NetBSD ftpd Firewall State Table Corruption Vulnerability
No exploit is required.
No exploit is required.
Solution / Fix
NetBSD ftpd Firewall State Table Corruption Vulnerability
Solution:
A NetBSD security advisory has been released. Information regarding package upgrades can be obtained from the attached reference.
Solution:
A NetBSD security advisory has been released. Information regarding package upgrades can be obtained from the attached reference.
References
NetBSD ftpd Firewall State Table Corruption Vulnerability
References:
References: