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VID 21522
Severity 30
Port 80, ...
Protocol TCP
Class CGI
Detailed Description The relevant Web server seems to have a backup file of the original CGI file. By requesting the CGI name with a special suffix (.old, .bak, .back, ~ or .copy), a remote attacker could access the source code of various CGIs. The backup files are usually renamed to something similar to the original file name with a special string appended. If a remote attacker accesses these backup files, the Web server could fail to apply proper ACLs (access control lists) or could fail to execute the CGI as a program, which could return the program's source code instead.

* Platforms Affected:
Any HTTP server Any version
Any operating system Any version
Recommendation Remove all backup files immediately from directories accessible by a Web browser.
Related URL (CVE)
Related URL (SecurityFocus)
Related URL 2370 (ISS)