The Serv-U FTP server is vulnerable to a remote buffer overflow attack when processing a long time zone argument to the MDTM command. This command is only available to authenticated users (including anonymous) and may be exploited to execute arbitrary code with the privileges of the FTP service. This service often runs with administrative privileges and successful exploitation may result in a loss of confidentiality, integrity, and/or availability.
Classification
Location:
Local Access Required,
Remote / Network Access
Attack Type:
Input Manipulation
Impact:
Loss of Integrity
Solution:
Upgrade
Exploit:
Exploit Public,
Exploit Commercial
Disclosure:
OSVDB Verified,
Vendor Verified
Solution
Upgrade to version 5.0.0.4 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.
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