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COMMAND Sambar DoS and buffer overflow SYSTEMS AFFECTED Sambar Server 5.0 PROBLEM In Mark Litchfield [http://www.ngssoftware.com] advisory [#NISR01042002] : BufferOverrun - By sending an overly long username and password, an access violation occurs in MSVCRT.dll (Server.exe) overwriting the saved return address with (in this case) 41414141. As server.exe is started as a system service, any execution of arbitary code would be run with system privilages. DOS 1) By suppling an overly long string to a specific HTTP header field an access violation occurs in SAMBAR.DLL and kills server.exe DOS 2) GET /cgi-win/testcgi.exe?(long char string) DOS 3) GET /cgi-win/Pbcgi.exe?(long char string) SOLUTION Get patch from : http://www.sambarserver.com/download/sambar51p.exe