This exploits a buffer overflow in the ISAPI ISM.DLL used to process HTR scripting in IIS 4.0. This Metasploit module works against Windows NT 4 Service Packs 3, 4, and 5. The server will continue to process requests until the payload being executed has exited. If you've set EXITFUNC to 'seh', the server will continue processing requests, but you will have trouble terminating a bind shell. If you set EXITFUNC to thread, the server will crash upon exit of the bind shell. The payload is alpha-numerically encoded without a NOP sled because otherwise the data gets mangled by the filters.
c0284698cfd346698336fc945b0632cf0c7ba907c5406d8c5e64e623fd0a639bThere exists an unauthenticated buffer overflow vulnerability in the POP3 server of Seattle Lab Mail 5.5 when sending a password with excessive length. Successful exploitation should not crash either the service or the server; however, after initial use the port cannot be reused for successive exploitation until the service has been restarted. Consider using a command execution payload following the bind shell to restart the service if you need to reuse the same port. The overflow appears to occur in the debugging/error reporting section of the slmail.exe executable, and there are multiple offsets that will lead to successful exploitation. This exploit uses 2606, the offset that creates the smallest overall payload. The other offset is 4654. The return address is overwritten with a "jmp esp" call from the application library SLMFC.DLL found in %SYSTEM%\\\\system32\\\\. This return address works against all version of Windows and service packs. The last modification date on the library is dated 06/02/99. Assuming that the code where the overflow occurs has not changed in some time, prior version of SLMail may also be vulnerable with this exploit. The author has not been able to acquire older versions of SLMail for testing purposes. Please let us know if you were able to get this exploit working against other SLMail versions.
7cf04a0a1b17cba098a17616169e621f194196f4f5eab7d777b4786d943eef8d
© 2022 Packet Storm. All rights reserved.
%7Cutmcsr%3D(direct)%7Cutmcmd%3D(none)){kind=small}
Follow us on Twitter
Follow us on Facebook
Subscribe to an RSS Feed