Short Name |
FTP:SERVU:MDTM-OVERFLOW |
---|---|
Severity |
Critical |
Recommended |
No |
Recommended Action |
Drop |
Category |
FTP |
Keywords |
Serv-U MDTM TimeZone Overflow |
Release Date |
2004/03/10 |
Update Number |
1213 |
Supported Platforms |
idp-4.0+, isg-3.0+, j-series-9.5+, mx-11.4+, srx-12.1+, srx-branch-12.1+, vmx-17.4+, vsrx-12.1+, vsrx3bsd-18.2+ |
This signature detects attempts to exploit a known vulnerability in the ServU FTP server MDTM command. The MDTM command is typically used to change the file timestamp on the server. Attackers can send a maliciously crafted timezone argument to the MDTM command to execute arbitrary code with system privileges.
Serv-U FTP Server has been reported prone to a remote stack based buffer overflow vulnerability when handling time zone arguments passed to the MDTM FTP command. The problem exists due to insufficient bounds checking. Ultimately an attacker may leverage this issue to have arbitrary instructions executed in the context of the SYSTEM user.