Debian: 'gnujsp' Unauthorized file access
February 21, 2002
The problemcan be used to bypass access restrictions in the web server
Summary
Severity
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Debian Security Advisory DSA 114-1 security@debian.org Debian -- Security Information Martin Schulze
February 21th, 2002
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Package : gnujsp
Vulnerability : unauthorized file access
Problem-Type : remote
Debian-specific: no
Thomas Springer found a vulnerability in GNUJSP, a Java servlet that
allows you to insert Java source code into HTML files. The problem
can be used to bypass access restrictions in the web server. An
attacker can view the contents of directories and download files
directly rather then receiving their HTML output. This means that the
source code of scripts could also be revealed.
The problem was fixed by Stefan Gybas, who maintains the Debian
package of GNUJSP. It is fixed in version 1.0.0-5 for the stable
release of Debian GNU/Linux.
The versions in testing and unstable are the same as the one in stable
so they are vulnerable, too. You can install the fixed version this
advisory refers to on these systems to solve the problem as this
package is architecture independent.
We recommend that you upgrade your gnujsp package immediately.
wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.
If you are using the apt-get package manager, use the line for
sources.list as given below:
apt-get update
will update the internal database
apt-get upgrade
will install corrected packages
You may use an automated update by adding the resources from the
footer to the proper configuration.
Debian GNU/Linux 2.2 alias potato
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Source archives:
MD5 checksum: cb643c7acf24eeef7f9ce303e954314b
MD5 checksum: 444233fdbc0a4872acd06033ce4fe294
MD5 checksum: bef48512d681f3b03040893d6315a80b
Architecture independent components:
MD5 checksum: 1e88d28cf4898287c55a2b2f2465cb84
These files will probably be moved into the stable distribution on
its next revision.
