__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN HP NonStop Server Running G06.29 [Hewlett-Packard HPSBNS02166 SSRT061255 rev. 1] October 31, 2006 19:00 GMT Number R-027 ______________________________________________________________________________ PROBLEM: A potential security vulnerability has been identified with HP NonStop Server running G06.29. PLATFORM: HP NonStop Server running G06.29 DAMAGE: The T6533G06 version of Standard Security product performs an incorrect evaluation of the access permissions on OSS directories which may result in local unauthorized access. SOLUTION: Install the appropriate upgrade or use the workaround. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. Local to root unauthorized access. ASSESSMENT: ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-027.shtml ORIGINAL BULLETIN: Visit Hewlett-Packard Subscription Service for: HPSBNS02166 SSRT061255 rev. 1 ______________________________________________________________________________ [***** Start Hewlett-Packard HPSBNS02166 SSRT061255 rev. 1 *****] Submitted Date: 10/26/06 Title: HPSBNS02166 SSRT061255 rev.1 - HP NonStop Server running G06.29, Local Unauthorized Access Document ID: c00795238 Last Modified Date: 10/29/06 You may provide feedback on this document SUPPORT COMMUNICATION - SECURITY BULLETIN Document ID: c00795238 Version: 1 HPSBNS02166 SSRT061255 rev.1 - HP NonStop Server running G06.29, Local Unauthorized Access NOTICE: The information in this Security Bulletin should be acted upon as soon as possible. Release Date: 2006-10-26 Last Updated: 2006-10-26 -------------------------------------------------------------------------------- Potential Security Impact: Local unauthorized access Source: Hewlett-Packard Company, HP Software Security Response Team VULNERABILITY SUMMARY A potential security vulnerability has been identified with HP NonStop Server running G06.29. The T6533G06 version of Standard Security product performs an incorrect evaluation of the access permissions on OSS directories which may result in local unauthorized access. References: HOTSTUFF HS02932 T6533G06 STANDARD SECURITY SUPPORT NOTE S06105 SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. HP NonStop Server running G06.29 BACKGROUND For a PGP signed version of this security bulletin please write to: security-alert@hp.com In HP NonStop Server running G06.29, the permissions on directories are evaluated incorrectly, if no optional access control list (ACL) entry is assigned. This can pose a security vulnerability on OSS directories. RESOLUTION The resolution for this issue is provided in SPR (Software Product Revision) T6533G06^ABK. This SPR is included in the G06.29.02 release, which replaces the G06.29 release. Alternatively, HP has provided the following workaround: This workaround applies only to Version 3 filesets. The following SCF command can be used to identify the version of the fileset: SCF DIAGNOSE FILESET $ZPMON., STATUS Version 2 filesets first need to be backed up and then upgraded to Version 3 filesets. Use this SCF command: SCF DIAGNOSE FILESET $ZPMON., UPGRADE To insure that directory permissions are made explicit, if a directory does not yet have an ACL associated with it, assign one with appropriate security. To make sure directories or files that are created subsequent to implementing this workaround are not vulnerable to the same problem, assign at least one default ACL entry to the existing directories. This OSS command assigns a optional ACL entry with a benign default to all directories in the specified directory tree (for example, use the fileset mountpoint directory), such that all subsequently created directories in that directory tree automatically also have the optional ACL entry assigned to them: find -type d -print | xargs -n1 setacl -m d:u:SUPER.SUPER:r-- If all of the started filesets on the system are Version 3 filesets, use this OSS command to assign the optional ACL entry to all directories: find / -W NOG -W NOE -type d -print | xargs -n1 setacl –m d:u:SUPER.SUPER:r-- PRODUCT SPECIFIC INFORMATION HISTORY Version:1 (rev.1) - 26 October 2006 Initial release Third Party Security Patches: Third party security patches which are to be installed on systems running HP software products should be applied in accordance with the customer's patch management policy. Support: For further information, contact normal HP Services support channel. Report: To report a potential security vulnerability with any HP supported product, send Email to: security-alert@hp.com It is strongly recommended that security related information being communicated to HP be encrypted using PGP, especially exploit information. To get the security-alert PGP key, please send an e-mail message as follows: To: security-alert@hp.com Subject: get key Subscribe: To initiate a subscription to receive future HP Security Bulletins via Email: http://h30046.www3.hp.com/driverAlertProfile.php?regioncode=NA&langcode=USENG&jumpid =in_SC-GEN__driverITRC&topiccode=ITRC On the web page: ITRC security bulletins and patch sign-up Under Step1: your ITRC security bulletins and patches - check ALL categories for which alerts are required and continue. Under Step2: your ITRC operating systems - verify your operating system selections are checked and save. To update an existing subscription: http://h30046.www3.hp.com/subSignIn.php Log in on the web page: Subscriber's choice for Business: sign-in. On the web page: Subscriber's Choice: your profile summary - use Edit Profile to update appropriate sections. To review previously published Security Bulletins visit: http://www.itrc.hp.com/service/cki/secBullArchive.do * The Software Product Category that this Security Bulletin relates to is represented by the 5th and 6th characters of the Bulletin number in the title: GN = HP General SW MA = HP Management Agents MI = Misc. 3rd Party SW MP = HP MPE/iX NS = HP NonStop Servers OV = HP OpenVMS PI = HP Printing & Imaging ST = HP Storage SW TL = HP Trusted Linux TU = HP Tru64 UNIX UX = HP-UX VV = HP VirtualVault System management and security procedures must be reviewed frequently to maintain system integrity. HP is continually reviewing and enhancing the security features of software products to provide customers with current secure solutions. "HP is broadly distributing this Security Bulletin in order to bring to the attention of users of the affected HP products the important security information contained in this Bulletin. HP recommends that all users determine the applicability of this information to their individual situations and take appropriate action. HP does not warrant that this information is necessarily accurate or complete for all user situations and, consequently, HP will not be responsible for any damages resulting from user's use or disregard of the information provided in this Bulletin. To the extent permitted by law, HP disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose, title and non-infringement." [***** End Hewlett-Packard HPSBNS02166 SSRT061255 rev. 1 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Hewlett-Packard for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. CIAC services are available to DOE, DOE contractors, and the NIH. CIAC can be contacted at: Voice: +1 925-422-8193 (7x24) FAX: +1 925-423-8002 STU-III: +1 925-423-2604 E-mail: ciac@ciac.org Previous CIAC notices, anti-virus software, and other information are available from the CIAC Computer Security Archive. World Wide Web: http://www.ciac.org/ Anonymous FTP: ftp.ciac.org PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing communities receive CIAC bulletins. If you are not part of these communities, please contact your agency's response team to report incidents. Your agency's team will coordinate with CIAC. The Forum of Incident Response and Security Teams (FIRST) is a world-wide organization. A list of FIRST member organizations and their constituencies can be obtained via WWW at http://www.first.org/. This document was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. 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