Signature Detail

HTTP: GoAhead WebServer Directory Permissions Bypass

This signature detects attempts to bypass directory permissions set on the /cgi-bin directory of a GoAhead Web server. GoAhead Web Server versions 2.1.8 and earlier are vulnerable. Attackers can supply an invalid URL to the server to reveal the contents of certain private directories on the server.

Extended Description

GoAhead WebServer is prone to a vulnerability that may permit remote attackers to bypass directory management policy. It is reported that certain syntax may be used in HTTP GET requests to bypass the policy for how certain request should be handled, for example, a script that should be interpreted may be downloaded by the attacker instead. This could allow for unauthorized access to resources hosted on the server, likely resulting in disclosure of sensitive information such as script source code. The exact consequences will depend on what sort of directory management policy is in place and also the nature of information included in scripts or other sensitive resources hosted on the server.

Affected Products

• Goahead_software goahead_webserver 2.0.0
• Goahead_software goahead_webserver 2.1.0
• Goahead_software goahead_webserver 2.1.1
• Goahead_software goahead_webserver 2.1.2
• Goahead_software goahead_webserver 2.1.3
• Goahead_software goahead_webserver 2.1.4
• Goahead_software goahead_webserver 2.1.5
• Goahead_software goahead_webserver 2.1.6
• Goahead_software goahead_webserver 2.1.7
• Goahead_software goahead_webserver 2.1.8

References

• BugTraq: 9450
• CVE: CVE-2001-0228
• URL: http://archives.neohapsis.com/archives/bugtraq/2001-02/0022.html
• URL: http://www.securityfocus.com/archive/1/350231