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TITLE:
Pico Server Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA15387

VERIFY ADVISORY:
http://secunia.com/advisories/15387/

CRITICAL:
Highly critical

IMPACT:
Exposure of sensitive information, System access

WHERE:
>From remote

SOFTWARE:
Pico Server (pServ) 3.x
http://secunia.com/product/2672/

DESCRIPTION:
RedTeam has reported some vulnerabilities Pico Server, which can be
exploited by malicious, local users to gain knowledge of sensitive
information, or by malicious people to gain knowledge of potentially
sensitive information or compromise a vulnerable system.

1) An input validation error in the CGI-BIN support can be exploited
to disclose the contents of files in the "cgi-bin/" directory or
execute arbitrary commands on a vulnerable system via directory
traversal attacks.

Successful exploitation requires that the application has been
compiled with CGI-BIN support.

2) A malicious, local user with permissions to create files in the
web root can disclose the contents of arbitrary files with the
privileges of Pico Server via symlinks.

SOLUTION:
Update to version 3.3 and grant only trusted users permissions to
create files in the web root.

PROVIDED AND/OR DISCOVERED BY:
RedTeam

ORIGINAL ADVISORY:
RedTeam:
http://tsyklon.informatik.rwth-aachen.de/redteam/advisories/rt-sa-2005-010.txt
http://tsyklon.informatik.rwth-aachen.de/redteam/advisories/rt-sa-2005-011.txt
http://tsyklon.informatik.rwth-aachen.de/redteam/advisories/rt-sa-2005-012.txt

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

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