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Date: Mon, 24 Apr 2000 16:33:32 -0400 (EDT)
From: Cristian Gafton <gafton@redhat.com>
To: redhat-watch-list@redhat.com
Subject: SECURITY: [RHSA-2000:014-10] Updated piranha packages available
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Red Hat, Inc. Security Advisory
Synopsis: Piranha web GUI exposure
Advisory ID: RHSA-2000:014-10
Issue date: 2000-04-18
Updated on: 2000-04-24
Product: Red Hat Linux
Keywords: piranha remote CGI command
Cross references: php
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1. Topic:
The GUI portion of Piranha may allow any remote attacker to execute
commands on the server. This may lead to remote compromise of the server,
as well as exposure or defacement of the website.
2. Relevant releases/architectures:
Red Hat Linux 6.2 - i386 alpha sparc
3. Problem description:
Piranha when it is installed generates a 'secure' web interface ID using
the HTML .htaccess method. The information for the account is placed in
/home/httpd/html/piranha/secure/passwords which was supposed to be
released with a blank password. In fact the password that is actually on
the CD is either 'q' or 'piranha'. It was intended that when the
administrator loaded the piranha package onto their box, that it was their
resonsibility to change that password. This is not a hidden account. It is
meerly used to protect the web pages from unauthorized access. The
security problem arises from the
/home/httpd/html/piranha/secure/passwd.php3 file from which it is possible
to execute commands by inserting them into the change password option eg
entering 'blah;/bin/command to execute' into the field, and again to
verify, everything after the semicolon is executed with the same privilege
as the webserver. It is possible at this point to compromise the webserver
or do serious damage to the site.
4. Solution:
For each RPM for your particular architecture, run:
rpm -Fvh [filename]
where filename is the name of the RPM.
Temporarily, you should set a password on the web pages as should be done
when you first install the package for the sake of speed you can issue the
following command htpasswd -c -b /home/httpd/html/piranha/secure/passwords
piranha 'password of choice' In theory, this means only you have access to
that area and you are hardly likely to try and exploit the problem
yourself.
When you install the update for the piranha-gui, please take a moment to
login into the gui frontend and set a password on the account
(http://localhost/piranha)
5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):
N/A
6. Obsoleted by:
N/A
7. Conflicts with:
N/A
8. RPMs required:
Red Hat Linux 6.2:
intel:
ftp://updates.redhat.com/6.2/i386/piranha-0.4.13-1.i386.rpm
ftp://updates.redhat.com/6.2/i386/piranha-docs-0.4.13-1.i386.rpm
ftp://updates.redhat.com/6.2/i386/piranha-gui-0.4.13-1.i386.rpm
alpha:
ftp://updates.redhat.com/6.2/alpha/piranha-0.4.13-1.alpha.rpm
ftp://updates.redhat.com/6.2/alpha/piranha-docs-0.4.13-1.alpha.rpm
ftp://updates.redhat.com/6.2/alpha/piranha-gui-0.4.13-1.alpha.rpm
sparc:
ftp://updates.redhat.com/6.2/sparc/piranha-0.4.13-1.sparc.rpm
ftp://updates.redhat.com/6.2/sparc/piranha-docs-0.4.13-1.sparc.rpm
ftp://updates.redhat.com/6.2/sparc/piranha-gui-0.4.13-1.sparc.rpm
sources:
ftp://updates.redhat.com/6.2/SRPMS/piranha-0.4.13-1.src.rpm
9. Verification:
MD5 sum Package Name
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ece87b0ed6f01a87b954b980c115aec0 6.2/SRPMS/piranha-0.4.13-1.src.rpm
985ff7d09172f4bfcc17c8044bee7fe8 6.2/alpha/piranha-0.4.13-1.alpha.rpm
9804348b4dc73ab82a7624c404afb930 6.2/alpha/piranha-docs-0.4.13-1.alpha.rpm
c1e536a9d14422115a89d2d56bf93926 6.2/alpha/piranha-gui-0.4.13-1.alpha.rpm
f2db6f165f21f93e9b724a94cd3fc595 6.2/i386/piranha-0.4.13-1.i386.rpm
bd54eb595f2a535e52486e799715ce00 6.2/i386/piranha-docs-0.4.13-1.i386.rpm
ad9fb552616a221db26b92b668211a30 6.2/i386/piranha-gui-0.4.13-1.i386.rpm
b9cb5cddd6e0cd99fc47eb56a06319a0 6.2/sparc/piranha-0.4.13-1.sparc.rpm
98313aa873dffe9c0520e3ad4862f2f5 6.2/sparc/piranha-docs-0.4.13-1.sparc.rpm
06cdba77a7f128e48a7c3d15c0cf9bcc 6.2/sparc/piranha-gui-0.4.13-1.sparc.rpm
These packages are GPG signed by Red Hat, Inc. for security. Our key
is available at:
http://www.redhat.com/corp/contact.html
You can verify each package with the following command:
rpm --checksig <filename>
If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
rpm --checksig --nogpg <filename>
10. References:
This vulnerability was discovered and researched by Allen Wilson and Dan
Ingevaldson of Internet Security Systems. Red Hat would like to thank ISS
for the assistance in getting this problem fixed quickly.
Cristian
- --
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Cristian Gafton -- gafton@redhat.com -- Red Hat, Inc.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"How could this be a problem in a country where we have Intel and
Microsoft?" --Al Gore on Y2K
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