PerlCal (CGI) show files vulnerability

Type securityvulns
Reporter Securityvulns
Modified 2001-04-28T00:00:00


[whizkunde security advisory: PerlCal (CGI)] |

Release date: April 27th 2001

Subject: PerlCal (CGI) security problem

Systems affected: *NIX (not windows) systems running PerlCal CGI script


  1. problem of the PerlCal script may allow remote users (website visitors) to view any file on a webserver (depending on the user the webserver is running on).

Regard this URL: p0=../../../../../../../../../../../../etc/passwd%00 This will display the /etc/passwd (if the webserver user has access to this file).

  1. fix I warned the PerlCal vendor three weeks ago. After a reaction, I gave him some time and tips to release a fix. Because the vendor still hasn't fixed the problem and because he didn't notice me why he hasn't released a patch yet, I released this advisory. I really hope the vendor will release a patch in the very near future. In the meantime it might be a good idea to just chmod 000 your PerlCal scripts.

Stan a.k.a. ThePike

Copyright whizkunde security team 2001