__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN rpc.mountd security issues in IRIX 6.5.25-6.5.27 [SGI Security Advisory 20050601-01-U] June 8, 2005 17:00 GMT Number P-214 ______________________________________________________________________________ PROBLEM: There are several security issues affecting Network File Systems rpc.mountd running IRIX 6.5.25, 6.5.26 & 6.5.27. PLATFORM: IRIX 6.5.25 IRIX 6.5.26 IRIX 6.5.27 DAMAGE: rpc.mountd allows excessive access rights for read-mostly exports and denies access to anonymous clients whose hostname is not listed in DNS, NIS or /etc/hosts. SOLUTION: Apply available security updates. ______________________________________________________________________________ VULNERABILITY The risk is Low. Possible evaluation of privileges. ASSESSMENT: ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/p-214.shtml ORIGINAL BULLETIN: http://www.sgi.com/support/security/advisories.html CVE/CAN: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CAN-2005-0139 CAN-2005-0138 ______________________________________________________________________________ [***** Start SGI Security Advisory 20050601-01-U *****] ______________________________________________________________________________ SGI Security Advisory Title: rpc.mountd security issues in IRIX 6.5.25-6.5.27 Number: 20050601-01-P Date: June 7, 2005 Reference: SGI BUG 934110, CAN-2005-0139 Reference: SGI BUG 933849, CAN-2005-0138 Fixed in: Patch 5898 & 5899 for IRIX 6.5.25-6.5.27 ______________________________________________________________________________ SGI provides this information freely to the SGI user community for its consideration, interpretation, implementation and use. SGI recommends that this information be acted upon as soon as possible. SGI reserves the right to change or update this Security Advisory without notice. SGI provides the information in this Security Advisory on an "AS-IS" basis only, and disclaims all warranties with respect thereto, express, implied or otherwise, including, without limitation, any warranty of merchantability or fitness for a particular purpose. In no event shall SGI be liable for any loss of profits, loss of business, loss of data or for any indirect, special, exemplary, incidental or consequential damages of any kind arising from your use of, failure to use or improper use of any of the instructions or information in this Security Advisory. _____________________________________________________________________________ ----------------------- --- Issue Specifics --- ----------------------- It has been reported there are several security issues affecting Network File Systems rpc.mountd running IRIX 6.5.25, 6.5.26 & 6.5.27. The bugs addressed by these patches are: * 934110 rpc.mountd allows excessive access rights for read-mostly exports http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0139 * 933849 rpc.mountd denies access to anonymous clients whose hostname is not listed in DNS, NIS or /etc/hosts http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0138 SGI has investigated the issue and recommends the following steps for resolving this issue. It is HIGHLY RECOMMENDED that these measures be implemented on ALL vulnerable SGI systems. -------------- --- Impact --- -------------- To determine the version of IRIX you are running, execute the following command: # /bin/uname -R That will return a result similar to the following: # 6.5 6.5.27m The first number ("6.5") is the release name, the second ("6.5.27m" in this case) is the extended release name. The extended release name is the "version" we refer to throughout this document. ---------------- --- Solution --- ---------------- SGI has provided a series of patches for these vulnerabilities and recommends that all affected operating systems install the appropriate patch. OS Version Vulnerable? Patch # Other Actions ---------- ----------- ------- ------------- IRIX 3.x unknown Note 1 IRIX 4.x unknown Note 1 IRIX 5.x unknown Note 1 IRIX 6.0.x unknown Note 1 IRIX 6.1 unknown Note 1 IRIX 6.2 unknown Note 1 IRIX 6.3 unknown Note 1 IRIX 6.4 unknown Note 1 IRIX 6.5-6.5.24 unknown Note 1 IRIX 6.5.25 yes 5898 Notes 2 & 3 IRIX 6.5.26 yes 5899 Notes 2 & 3 IRIX 6.5.27 yes 5899 Notes 2 & 3 NOTES 1) This version of the IRIX operating has been retired. Upgrade to an actively supported IRIX operating system. See http://support.sgi.com for more information. 2) If you have not received an IRIX 6.5.X CD for IRIX 6.5, contact your SGI Support Provider or URL: http://support.sgi.com 3) Install the required patch(es) based on your operating release. ##### Patch File Checksums #### The actual patch will be a tar file containing the following files: Filename: README.patch.5898 Algorithm #1 (sum -r): 33581 8 README.patch.5898 Algorithm #2 (sum): 34870 8 README.patch.5898 MD5 checksum: 2BFBE3FF1CEFBF720954A03E7E2D8A62 Filename: patchSG0005898 Algorithm #1 (sum -r): 37912 1 patchSG0005898 Algorithm #2 (sum): 29114 1 patchSG0005898 MD5 checksum: 1637909A5FCF1FB9E3C986F696F94694 Filename: patchSG0005898.idb Algorithm #1 (sum -r): 07058 1 patchSG0005898.idb Algorithm #2 (sum): 35083 1 patchSG0005898.idb MD5 checksum: DE6702A79942055BAA4245D4E640F46E Filename: patchSG0005898.nfs_sw Algorithm #1 (sum -r): 36202 59 patchSG0005898.nfs_sw Algorithm #2 (sum): 31684 59 patchSG0005898.nfs_sw MD5 checksum: 715A87A7C17D149B708BB86682177DC6 Filename: README.patch.5899 Algorithm #1 (sum -r): 04499 8 README.patch.5899 Algorithm #2 (sum): 44108 8 README.patch.5899 MD5 checksum: 881EA3C4C00303ADA8FB8B42FFEFB37E Filename: patchSG0005899 Algorithm #1 (sum -r): 00563 1 patchSG0005899 Algorithm #2 (sum): 33072 1 patchSG0005899 MD5 checksum: 4FCA2A682EE0BA133291AD0B3CD3BD28 Filename: patchSG0005899.idb Algorithm #1 (sum -r): 24895 1 patchSG0005899.idb Algorithm #2 (sum): 35057 1 patchSG0005899.idb MD5 checksum: 4985446CF9423A9ED34A2B18DFD6CD48 Filename: patchSG0005899.nfs_sw Algorithm #1 (sum -r): 43478 63 patchSG0005899.nfs_sw Algorithm #2 (sum): 49388 63 patchSG0005899.nfs_sw MD5 checksum: BC518B52AAE59520180691C75A971E19 ------------- --- Links --- ------------- Patches are available via the web, anonymous FTP and from your SGI service/support provider. SGI Security Advisories can be found at: http://www.sgi.com/support/security/ and ftp://patches.sgi.com/support/free/security/advisories/ SGI Security Patches can be found at: http://www.sgi.com/support/security/ and ftp://patches.sgi.com/support/free/security/patches/ SGI patches for IRIX can be found at the following patch servers: http://support.sgi.com/ and ftp://patches.sgi.com/ SGI freeware updates for IRIX can be found at: http://freeware.sgi.com/ SGI fixes for SGI open sourced code can be found on: http://oss.sgi.com/projects/ SGI patches and RPMs for Linux can be found at: http://support.sgi.com/ or http://oss.sgi.com/projects/sgilinux-combined/download/security-fixes/ SGI patches for Windows NT or 2000 can be found at: http://support.sgi.com/ IRIX 5.2-6.4 Recommended/Required Patch Sets can be found at: http://support.sgi.com/ and ftp://patches.sgi.com/support/patchset/ IRIX 6.5 Maintenance Release Streams can be found at: http://support.sgi.com/ IRIX 6.5 Software Update CDs can be obtained from: http://support.sgi.com/ The primary SGI anonymous FTP site for security advisories and patches is patches.sgi.com (216.32.174.211). Security advisories and patches are located under the URL ftp://patches.sgi.com/support/free/security/ For security and patch management reasons, ftp.sgi.com (mirrors patches.sgi.com security FTP repository) lags behind and does not do a real-time update. ----------------------------------------- --- SGI Security Information/Contacts --- ----------------------------------------- If there are questions about this document, email can be sent to security-info@sgi.com. ------oOo------ SGI provides security information and patches for use by the entire SGI community. This information is freely available to any person needing the information and is available via anonymous FTP and the Web. The primary SGI anonymous FTP site for security advisories and patches is patches.sgi.com (216.32.174.211). Security advisories and patches are located under the URL ftp://patches.sgi.com/support/free/security/ The SGI Security Headquarters Web page is accessible at the URL: http://www.sgi.com/support/security/ For issues with the patches on the FTP sites, email can be sent to security-info@sgi.com. For assistance obtaining or working with security patches, please contact your SGI support provider. ------oOo------ SGI provides a free security mailing list service called wiretap and encourages interested parties to self-subscribe to receive (via email) all SGI Security Advisories when they are released. Subscribing to the mailing list can be done via the Web (http://www.sgi.com/support/security/wiretap.html) or by sending email to SGI as outlined below. % mail wiretap-request@sgi.com subscribe wiretap end ^d In the example above, is the email address that you wish the mailing list information sent to. The word end must be on a separate line to indicate the end of the body of the message. The control-d (^d) is used to indicate to the mail program that you are finished composing the mail message. ------oOo------ SGI provides a comprehensive customer World Wide Web site. This site is located at http://www.sgi.com/support/security/ . ------oOo------ If there are general security questions on SGI systems, email can be sent to security-info@sgi.com. For reporting *NEW* SGI security issues, email can be sent to security-alert@sgi.com or contact your SGI support provider. A support contract is not required for submitting a security report. ______________________________________________________________________________ This information is provided freely to all interested parties and may be redistributed provided that it is not altered in any way, SGI is appropriately credited and the document retains and includes its valid PGP signature. [***** End SGI Security Advisory 20050601-01-U *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of SGI 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. 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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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