ScriptAlias directive allows remote CGI script access
| http-scriptalias (332) |  Low Risk |
Description:
The ScriptAlias directive creates a virtual directory on your server. Any accesses to that virtual directory is satisfied by returning the output of a CGI server script in that directory. Configuring a Web server with a ScriptAlias Directive specifying a directory under DocumentRoot can open a vulnerability on some Web servers, allowing a remote attacker to view the source of CGI scripts on the Web server. This action may allow a remote attacker to gain access to proprietary CGI code or more easily determine vulnerabilities in existing CGI scripts on a computer.
Platforms Affected:
- Apache, HTTP Server
- Compaq, Tru64
- Data General, DG/UX
- HP, HP-UX
- IBM, AIX
- Linux, Kernel
- NCSA, NCSA Servers
- SCO, SCO Unix
- SGI, IRIX
- Sun, Solaris
- WindRiver, BSDOS
Remedy:
Affected sites should move ScriptAlias directories out of the DocumentRoot or upgrade your server to a version that securely handles ScriptAlias directives.
Consequences:
Obtain Information
References:
- NCSA HTTPd Development Team, ScriptAlias directive at http://httpd.ncsa.uiuc.edu/docs/setup/srm/ScriptAlias.html.
- BID-2300: NCSA/Apache httpd ScriptAlias Source Retrieval Vulnerability
- CVE-1999-0236: ScriptAlias directory in NCSA and Apache httpd allowed attackers to read CGI programs.
Reported:
Jul 12, 1995
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