The problemcan be used to bypass access restrictions in the web server. Anattacker can view the contents of directories and download filesdirectly rather then receiving their HTML output. -------------------------------------------------------------------------- Debian Security Advisory DSA 114-1 This email address is being protected from spambots. You need JavaScript enabled to view it.'>This email address is being protected from spambots. You need JavaScript enabled to view it.http://www.debian.org/security/ Martin Schulze February 21th, 2002 -------------------------------------------------------------------------- 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 ------------------------------------ Source archives: http://security.debian.org/dists/stable/updates/contrib/source/gnujsp_1.0.0.orig.tar.gz MD5 checksum: cb643c7acf24eeef7f9ce303e954314b http://security.debian.org/dists/stable/updates/contrib/source/gnujsp_1.0.0-5.dsc MD5 checksum: 444233fdbc0a4872acd06033ce4fe294 http://security.debian.org/dists/stable/updates/contrib/source/gnujsp_1.0.0-5.diff.gz MD5 checksum: bef48512d681f3b03040893d6315a80b Architecture independent components: http://security.debian.org/dists/stable/updates/contrib/binary-all/gnujsp_1.0.0-5_all.deb MD5 checksum: 1e88d28cf4898287c55a2b2f2465cb84 These files will probably be moved into the stable distribution on its next revision. --------------------------------------------------------------------------------- For apt-get: deb http://security.debian.org/ stable/updates main For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.'>This email address is being protected from spambots. You need JavaScript enabled to view it. Package info: `apt-cache show ' and http://packages.debian.org/