-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 +------------------------------------------------------------------------+ | EnGarde Secure Linux Security Advisory July 11, 2001 | | http://www.engardelinux.org/ ESA-20010711-01 | | | | Package: AllCommerce | | Summary: AllCommerce creates insecure temporary files. | +------------------------------------------------------------------------+ EnGarde Secure Linux is a secure distribution of Linux that features improved access control, host and network intrusion detection, Web based secure remote management, complete e-commerce using AllCommerce, and integrated open source security tools. OVERVIEW - -------- There is a temporary file creation vulnerability in AllCommerce which can allow an attacker to exploit a victim via a symlink attack as the 'webd' user. DETAIL - ------ Our AllCommerce packages were released with several debugging options enabled. This, unfortunately, leads to the creation of several insecure files in the /tmp directory. These files have predictable names and are thus subject to a symlink attack as the 'webd' user. Debugging is totally disabled in this update so no files should be created in /tmp. All users are urged to update to this latest package. SOLUTION - -------- All users should upgrade to the most recent version, as outlined in this advisory. Guardian Digital recently made available the Guardian Digital Secure Update, a means to proactively keep systems secure and manage system software. EnGarde users can automatically update their system using the Guardian Digital WebTool secure interface. If choosing to manually upgrade this package, updates can be obtained from: ftp://ftp.engardelinux.org/pub/engarde/stable/updates/ http://ftp.engardelinux.org/pub/engarde/stable/updates/ Before upgrading the package, the machine must either: a) be booted into a "standard" kernel; or b) have LIDS disabled. To disable LIDS, execute the command: # /sbin/lidsadm -S -- -LIDS_GLOBAL To install the updated package, execute the command: # rpm -Uvh <filename> To re-enable LIDS (if it was disabled), execute the command: # /sbin/lidsadm -S -- +LIDS_GLOBAL To verify the signature of the updated packages, execute the command: # rpm -Kv <filename> UPDATED PACKAGES - ---------------- These updated packages are for EnGarde Secure Linux 1.0.1 (Finestra). Source Packages: SRPMS/AllCommerce-1.0.4.1-1.0.25.src.rpm MD5 Sum: 7d4a528a1c72fbf11ffa6279db0122d2 Binary Packages: noarch/AllCommerce-1.0.4.1-1.0.25.noarch.rpm MD5 Sum: 9f60b894068f946757b6ca127672b3d9 REFERENCES - ---------- Guardian Digital's public key: http://ftp.engardelinux.org/pub/engarde/ENGARDE-GPG-KEY Credit for the discovery of this bug goes to: Ryan W. Maple <ryanat_private> AllCommerce's Official Web Site: http://allcommerce.sourceforge.net/ Security Contact: securityat_private EnGarde Advisories: http://www.engardelinux.org/advisories.html - -------------------------------------------------------------------------- $Id: ESA-20010711-01-AllCommerce,v 1.7 2001/07/11 16:56:28 rwm Exp $ - -------------------------------------------------------------------------- Author: Ryan W. Maple, <ryanat_private> Copyright 2001, Guardian Digital, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.4 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE7TI+bHD5cqd57fu0RAp88AKCKaxiAXzAF9IMeAJtknXk7VtFxRACfdyUc 2vFMXGGE+g9+vJrOEfUXd/A= =iYn/ -----END PGP SIGNATURE-----
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