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GEN:SID | 1:1888 |
Message | FTP SITE CPWD overflow attempt |
Summary | This event is generated when an attempt is made to exploit a known vulnerability in WS_FTP. |
Impact | Serious. Execution of arbitrary code is possible. |
Detailed Information | Executing site cpwd with an specially crafted argument can cause a buffer overflow in WS_FTP that would allow arbitrary code to be run on the ftp server. The 'site cpwd' command seems to be unique to ws_ftp. This command is used to allow users to change there passwords while using an ftp session. It is possible to execute 'site cpwd' with an specially crafted argument can cause a buffer overflow in WS_FTP. This would allow arbitrary code to be run on the ftp server. This requires that the user be logged into the ftp server before executing the 'site cpwd' command. |
Affected Systems | WS_FTP up to an including 3.12 |
Attack Scenarios | An attacker needs to authenticate to an ftp server running the affected software then supply a specially crafted command to cause the buffer overflow condition to occur. |
Ease of Attack | Simple. |
Corrective Action | Upgrade to the latest non-affected version of the software. Apply the appropriate vendor supplied patches. Consider using scp as a secure replacement for ftp. |
Additional References | |
Rule References | bugtraq: 5427 cve: 2002-0826 |
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DID:649865
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