| GEN:SID | 1:882 |
| Message | WEB-CGI calendar access |
| Summary | This event is generated when an attempt is made to access a web application that may lead to exploitation of the application.
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| Impact | Potentially harmful execution of binaries through perl open()
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| Detailed Information | An open source calendar perl script by Matt Kruse, Allows commands to be executed without input verification using the perl open() function. ie /cgi-bin/calendar_admin.pl place the string "|ping 127.0.0.1|" in the configuration file field, this executes the command "ping 127.0.0.1"
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| Affected Systems | Any web server running the application.
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| Attack Scenarios | An unauthenticated user can execute arbitrary programs on the server by accessing calendar_admin.pl and inputting commands such as "|mail /etc/passwd|" into the configuration file field.
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| Ease of Attack | Simple. No exploit software required.
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| Corrective Action | Download a newer version of the cgi
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| Additional References | CVE: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2000-0432
Bugtraq: http://online.securityfocus.com/bid/1215
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