-----BEGIN PGP SIGNED MESSAGE----- - ---EXTERNAL RELEASE---EXTERNAL RELEASE---EXTERNAL RELEASE---EXTERNAL RELEASE--- ======= ============ ====== ====== ======= ============== ======= ======= === === ==== ====== ====== === =========== ======= ======= === =========== === ======= === === === ==== === ===== === ======= ============== ===== === ===== ======= ============ ===== = ===== EMERGENCY RESPONSE SERVICE OUTSIDE ADVISORY REDISTRIBUTION 23 July 1996 17:00 GMT Number: ERS-OAR-E01-1996:005.1 =============================================================================== The IBM-ERS Outside Advisory Redistribution is designed to provide customers of the IBM Emergency Response Service with access to the security advisories sent out by other computer security incident response teams, vendors, and other groups concerned about security. IBM makes no representations and assumes no responsibility for the contents or accuracy of the advisories themselves. IBM-ERS is forwarding the following information from Hewlett-Packard. Contact information for Hewlett-Packard is included in the forwarded text below; please contact them if you have any questions or need further information. =============================================================================== ********************** FORWARDED INFORMATION STARTS HERE ********************** =============================================================================== ***HP SupportLine Mail Service Notice*** This digest contains a summary of all newly received Security Bulletins. You do not have to have any form of support from Hewlett-Packard to subscribe to this digest or to procure the recommended patches via the HP SupportLine mail service. - ------------------------------------------------------------------------------- To obtain a copy of the HP SupportLine mail service user's guide, send the following (in the TEXT PORTION OF THE MESSAGE to) to the HP SupportLine mail service. To: support@us.external.hp.com Message Text: send guide - ------------------------------------------------------------------------------- To obtain a patch identified within this Security Bulletin, send the following (in the TEXT PORTION OF THE MESSAGE) to the HP SupportLine mail service. To: support@us.external.hp.com Message Text: send xxxxxxxxxxxx (where xxxxxxxxxxxx represents the specified patch name). - ------------------------------------------------------------------------------- If you have concerns about security issues, please forward them to: security-alert@hp.com The security-alert node is monitored during working hours Pacific Daylight Time by multiple HP Security Response Team personnel. We reply to your message only if necessary to obtain additional information. - ------------------------------------------------------------------------------- If you would like to be REMOVED from this mailing lists, send the following (in the TEXT PORTION OF THE MESSAGE) to the HP SupportLine mail service. To: support@us.external.hp.com Message Text: unsubscribe security_info =============================================================================== Digest Name: security_info Description: Daily Security Bulletins Digest Created: Thu Jul 18 03:00:01 1996 PDT - ------------------------------------------------------------------------------- Summary of 'Daily Security Bulletins Digest' documents - ------------------------------------------------------------------------------- Document Id Description Page 1 - ------------------------------------------------------------------------------- HPSBUX9607-033 Security Vulnerability in expreserve HPSBUX9607-032 Security Vulnerability in rpc.pcnfsd & rpc.statd =============================================================================== Detailed list of 'Daily Security Bulletins Digest' documents =============================================================================== Document Id: [HPSBUX9607-033] Date Loaded: [07-18-96] Description: Security Vulnerability in expreserve =============================================================================== - ------------------------------------------------------------------------- HEWLETT-PACKARD SECURITY BULLETIN: #HPSBUX9607-033, 18 July 1996 - ------------------------------------------------------------------------- Hewlett-Packard recommends that the information in the following Security Bulletin should be acted upon as soon as possible. Hewlett- Packard will not be liable for any consequences to any customer resulting from customer's failure to fully implement instructions in this Security Bulletin as soon as possible. - ------------------------------------------------------------------------- PROBLEM: Vulnerability in /usr/lib/expreserve in HP-UX 9.X and 10.X PLATFORM: HP 9000 series 300/400s and 700/800s DAMAGE: The default permissions of file expreserve(1) are in error, thereby allowing users to potentially gain root privileges on the host. SOLUTION: Apply patch PHCO_6363 (series 700/800, HP-UX 9.x), or PHCO_7833 (series 300/400, HP-UX 9.x), or perform the actions described below in releases of HP-UX prior to 9.X, and in 10.X) AVAILABILITY: All patches are available now. _________________________________________________________________________ I. Update A. A private communication to HP described a vulnerability that allows ordinary users to potentially gain super-user privileges. The default permission for the file /usr/lib/expreserve (or on HP-UX 10.X /usr/lbin/expreserve) needs only minimal prvileges. If the patches mentioned above are applied the vulnerability cannot be exploited. In case no patches is available for your host HP-UX release, system administrators are asked to perform the following action to achieve the same result. B. Fixing the problem The vulnerability can be eliminated from releases 9.X of HP-UX by applying a patch. Since some patches will not be made available on some releases of HP-UX (e.g., prior to 9.X, and now 10.0X), affected systems can be protected by system administrators. They should: $ su root # chmod 0555 /usr/lib/expreserve In the case of 10.X systems execute the following to affect the link target: $ su root # chmod 0555 /usr/lbin/expreserve Hewlett-Packard recommends that all customers concerned with the security of their HP-UX systems either apply the appropriate patch or perform the actions described above as soon as possible. C. How to Install the Patch (for HP-UX 9.x) 1. Determine which patch is appropriate for your hardware platform and operating system: PHCO_6363 (series 700/800, HP-UX 9.x), or PHCO_7833 (series 300/400, HP-UX 9.x) 2. Hewlett Packard's HP-UX patches are available via email and World Wide Web To obtain a copy of the HP SupportLine email service user's guide, send the following in the TEXT PORTION OF THE MESSAGE to support@us.external.hp.com (no Subject is required): send guide The users guide explains the HP-UX patch downloading process via email and other services available. World Wide Web service for downloading of patches is available via our URL: (http://us.external.hp.com) 3. Apply the patch to your HP-UX system. 4. Examine /tmp/update.log for any relevant WARNINGs or ERRORs. D. Impact The patch for HP-UX releases 9.X provides a proper permissions /usr/lib/expreserve which fixes the vulnerability. No patches will be available for versions of HP-UX other than 9.X. Instead, the workaround is described above. E. To subscribe to automatically receive future NEW HP Security Bulletins from the HP SupportLine mail service via electronic mail, send an email message to: support@us.external.hp.com (no Subject is required) Multiple instructions are allowed in the TEXT PORTION OF THE MESSAGE, here are some basic instructions you may want to use: To add your name to the subscription list for new security bulletins, send the following in the TEXT PORTION OF THE MESSAGE: subscribe security_info To retrieve an index of all HP Security Bulletins issued to date, send the following in the TEXT PORTION OF THE MESSAGE: send security_info_list To get a patch matrix of current HP-UX and BLS security patches referenced by either Security Bulletin or Platform/OS, put the following in the text portion of your message: send hp-ux_patch_matrix World Wide Web service for browsing of bulletins is available via our URL: (http://us.external.hp.com) Choose "Support news", then under Support news, choose "Security Bulletins" F. To report new security vulnerabilities, send email to security-alert@hp.com Please encrypt exploit information using the security-alert PGP key, available from your local key server, or by sending a message with a -subject- (not body) of 'get key' (no quotes) to security-alert@hp.com. Permission is granted for copying and circulating this Bulletin to Hewlett-Packard (HP) customers (or the Internet community) for the purpose of alerting them to problems, if and only if, the Bulletin is not edited or changed in any way, is attributed to HP, and provided such reproduction and/or distribution is performed for non-commercial purposes. Any other use of this information is prohibited. HP is not liable for any misuse of this information by any third party. _______________________________________________________________________ =============================================================================== Document Id: [HPSBUX9607-032] Date Loaded: [07-18-96] Description: Security Vulnerability in rpc.pcnfsd & rpc.statd =============================================================================== - ----------------------------------------------------------------------- HEWLETT-PACKARD SECURITY ADVISORY: #HPSBUX9607-032, 18 July 1996 - ----------------------------------------------------------------------- The information in the following Security Advisory should be acted upon as soon as possible. Hewlett Packard will not be liable for any consequences to any customer resulting from customer's failure to fully implement instructions in this Security Advisory as soon as possible. - ----------------------------------------------------------------------- PROBLEM: Vulnerabilities in rpc.statd and rpc.pcnfsd executables. PLATFORM: HP 9000/300 and 9000/400 systems running any currently supported version of HP-UX 9.X; HP 9000/700 and 9000/800 systems running any currently supported version of HP-UX 9.X or any currently supported version of HP-UX 10.X. DAMAGE: The security of the enterprise and its applications could be compromised. SOLUTION: Apply the following patches based on your system hardware and Operating System revision for the two problems: PHNE_7371 (series 300/400 HP-UX 9.X) and PHNE_7372 (series 300/400 HP-UX 9.X); or PHNE_7072 (series 700/800 HP-UX 9.X), or PHNE_7073 (series 700/800 HP-UX 10.X), or PHNE_8015 (series 700 HP-UX 9.08 BLS), or PHNE_8016 (series 700 HP-UX 9.09 BLS), or PHNE_8017 (series 700 HP-UX 9.09+ BLS, or PHNE_8018 (series 700 HP-UX 10.09 CMW), or PHNE_8019 (series 700 HP-UX 10.09.01 CMW), or PHNE_8020 (series 700 HP-UX 10.16 CMW). AVAILABILITY: All of the above listed patches are available now via the mechanism described below, except for BLS/CMW system patches which will be available after 2 Sept. - ----------------------------------------------------------------------- I. Rpc.Pcnfsd - CERT(sm) Advisory CA-96.08 A. Background The pcnfsd program (also called rpc.pcnfsd) is an authentication and printing program that runs on a UNIX server. The rpc.pcnfsd binary that ships with HP systems contains a vulnerability that could allow a user to change permissions on a restricted file or directory. B. Fixing the problem Hewlett Packard is delivering a set of operating system dependent patches which contain a new version of rpc.pcnfsd. Accompanying each patch is a README file which discusses the general purpose of the patch and describes how to apply it to your system. C. Recommended solution Apply one of the following patches based on your system hardware and operating system revision: s300/s400 9.X - PHNE_7371 (rpc.pcnfsd) s700/s800 9.X - PHNE_7072 (NFS Megapatch) s700/s800 10.X - PHNE_7073 (NFS Megapatch) D. Impact of the patch The patches described above provide a new version of the rpc.pcnfsd executable which fixes the vulnerability. II. Rpc.Pcnfsd - CERT(sm) Advisory CA-96.08 A. Background The pcnfsd program (also called rpc.pcnfsd) is an authentication and printing program that runs on a UNIX server. The rpc.pcnfsd binary that ships with most Unix systems contains a vulnerability that could allow users to execute arbitrary commands on the machine where pcnfsd runs. B. Fixing the problem The rpc.pcnfsd daemon that ships with Hewlett Packard systems does not make the system call that allows this vulnerability. Since HP systems are not vulnerable - there is no fix! III. Rpc.Statd - CERT(sm) Advisory CA-96.09 A. Background The statd program (also called rpc.statd) is the status monitor program that helps keep track of remote file locks. It works in conjunction with the lockd (also called rpc.lockd) daemon. The rpc.statd daemon that ships with HP systems contains a vulnerability that could allow a remote user to delete files on the system running rpc.statd. B. Fixing the problem Hewlett Packard is delivering a set of operating system dependent patches which contain a new version of rpc.statd. Accompanying each patch is a README file which discusses the general purpose of the patch and describes how to apply it to your system. C. Recommended solution Apply one of the following patches based on your system hardware and operating system revision: s300/s400 9.X - PHNE_7372 (rpc.statd) s700/s800 9.X - PHNE_7072 (NFS Megapatch) s700/s800 10.X - PHNE_7073 (NFS Megapatch) D. Impact of the patch The patches described above provide a new version of the rpc.statd executable which fixes the vulnerability. E. To subscribe to automatically receive future NEW HP Security Bulletins from the HP SupportLine mail service via electronic mail, send an email message to: support@us.external.hp.com (no Subject is required) Multiple instructions are allowed in the TEXT PORTION OF THE MESSAGE, here are some basic instructions you may want to use: To add your name to the subscription list for new security bulletins, send the following in the TEXT PORTION OF THE MESSAGE: subscribe security_info To retrieve the index of all HP Security Bulletins issued to date, send the following in the TEXT PORTION OF THE MESSAGE: send security_info_list To get a patch matrix of current HP-UX and BLS security patches referenced by either Security Bulletin or Platform/OS, put the following in the text portion of your message: send hp-ux_patch_matrix World Wide Web service for browsing of bulletins is available via our URL: (http://us.external.hp.com) Choose "Support news", then under Support news, choose "Security Bulletins" F. To report new security vulnerabilities, send email to security-alert@hp.com Please encrypt exploit information using the security-alert PGP key, available from your local key server, or by sending a message with a -subject- (not body) of 'get key' (no quotes) to security-alert@hp.com. Permission is granted for copying and circulating this Bulletin to Hewlett-Packard (HP) customers (or the Internet community) for the purpose of alerting them to problems, if and only if, the Bulletin is not edited or changed in any way, is attributed to HP, and provided such reproduction and/or distribution is performed for non-commercial purposes. Any other use of this information is prohibited. HP is not liable for any misuse of this information by any third party. ______________________________________________________________________ *********************** FORWARDED INFORMATION ENDS HERE *********************** =============================================================================== IBM's Internet Emergency Response Service (IBM-ERS) is a subscription-based Internet security response service that includes computer security incident response and management, regular electronic verification of your Internet gateway(s), and security vulnerability alerts similar to this one that are tailored to your specific computing environment. By acting as an extension of your own internal security staff, IBM-ERS's team of Internet security experts helps you quickly detect and respond to attacks and exposures across your Internet connection(s). As a part of IBM's Business Recovery Services organization, the IBM Internet Emergency Response Service is a component of IBM's SecureWay(tm) line of security products and services. From hardware to software to consulting, SecureWay solutions can give you the assurance and expertise you need to protect your valuable business resources. To find out more about the IBM Internet Emergency Response Service, send an electronic mail message to ers-sales@vnet.ibm.com, or call 1-800-742-2493 (Prompt 4). IBM-ERS maintains a site on the World Wide Web at http://www.ers.ibm.com/. Visit the site for information about the service, copies of security alerts, team contact information, and other items. IBM-ERS uses Pretty Good Privacy* (PGP*) as the digital signature mechanism for security vulnerability alerts and other distributed information. The IBM-ERS PGP* public key is available from http://www.ers.ibm.com/team-info/pgpkey.html. "Pretty Good Privacy" and "PGP" are trademarks of Philip Zimmerman. IBM-ERS is a Member Team of the Forum of Incident Response and Security Teams (FIRST), a global organization established to foster cooperation and response coordination among computer security teams worldwide. The information in this document is provided as a service to customers of the IBM Emergency Response Service. Neither International Business Machines Corporation, Integrated Systems Solutions Corporation, 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 contained herein, or represents that its use would not infringe any 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 IBM or its subsidiaries. The views and opinions of authors expressed herein do not necessarily state or reflect those of IBM or its subsidiaries, and may not be used for advertising or product endorsement purposes. - ---EXTERNAL RELEASE---EXTERNAL RELEASE---EXTERNAL RELEASE---EXTERNAL RELEASE--- -----BEGIN PGP SIGNATURE----- Version: 2.7.1 iQCVAwUBMfUIXPWDLGpfj4rlAQGSrwP/bX2WIHY8MK4knKoOaZ3Wv9g8OWNj913A QBUhwKCydTnKOiSTT8zY3EeD8bFnWWcUFyFeh7qgtRhcIJduPD+qTfRHV3uIZb5o t7Lsr7EWZ5gx1HwdrdbyOj8J0XFwNFtI/mW6lRhN2zzQ2Wj3rxpX/xkgjICswYt5 4qJHqH/lMfI= =92i4 -----END PGP SIGNATURE-----