-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 +------------------------------------------------------------------------+ | EnGarde Secure Linux Security Advisory January 14, 2002 | | http://www.engardelinux.org/ ESA-20020114-002 | | | | Package: pine | | Summary: 'pine' URL handling vulnerability | +------------------------------------------------------------------------+ 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 vulnerability in pine which can allow an attacker to execute arbitrary commands on a victims machine by sending them a specially- crafted URL which is then mishandled by pine's URL handling code. DETAIL - ------ zen-parse has found a URL handling vulnerability, much like the recent xchat vulnerability (http://www.securityfocus.com/bid/1601), in the pine mail and news reader. By sending a victim a URL of the form: http://address/'&/some/program${IFS}with${IFS}arguments&' (where ' is the backtick character) an attacker can execute '/some/program with arguments' on the victims machine. If the victim is reading his mail as root (which is obviously not recommended) then this can lead to a root compromise. SOLUTION - -------- This information applies only to EnGarde Secure Linux Community edition users. Registered users of the EnGarde Secure Linux Professional edition can use the Guardian Digital Secure Network to upgrade their packages automatically. All users should upgrade to the most recent version as outlined in this advisory. All updates may be found at: 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> You must now update the LIDS configuration by executing the command: # /usr/sbin/config_lids.pl To re-enable LIDS (if it was disabled), execute the command: # /sbin/lidsadm -S -- +LIDS_GLOBAL To verify the signatures 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/pine-4.33-1.0.6.src.rpm MD5 Sum: 7a6653d8814945edee9ab544afb696bc Binary Packages: i386/pine-4.33-1.0.6.i386.rpm MD5 Sum: 4b1d60e1e7ccb3a8a511db42877f0b15 i686/pine-4.33-1.0.6.i686.rpm MD5 Sum: 995ed060b84adb05b5b274d353becd91 REFERENCES - ---------- Guardian Digital's public key: http://ftp.engardelinux.org/pub/engarde/ENGARDE-GPG-KEY Credit for the discovery of this bug goes to: zen-parse <zen-parseat_private> pine's Official Web Site: http://www.washington.edu/pine/ Security Contact: securityat_private EnGarde Advisories: http://www.engardelinux.org/advisories.html - -------------------------------------------------------------------------- $Id: ESA-20020114-002-pine,v 1.2 2002/01/14 18:20:07 rwm Exp $ - -------------------------------------------------------------------------- Author: Ryan W. Maple, <ryanat_private> Copyright 2002, Guardian Digital, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE8Q1KYHD5cqd57fu0RAhJ5AKCKiXZ7OTw4RdmRjxAJIufHC+UCsgCbBx0r /y172BhTiYEwTmDq94ZEiwA= =VQ4G -----END PGP SIGNATURE-----
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