-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 IBM SECURITY ADVISORY First Issued: Thu Jun 20 13:00:02 CDT 2012 Updated: Mon Oct 29 11:43:29 CDT 2012 Update: IFIX and CSUM for 6100-07-04 Update: New ifixes for the latest SP's Updated: Thu May 23 11:04:10 CDT 2014 Update: New APAR/Interim Fixes Update: CONTACT INFORMATION Update: ACKNOWLEDGMENTS |Updated: Thu Jun 5 13:01:39 CDT 2014 |Update: Changed CVE# from CVE-2012-2179 to CVE-2014-3977 |Update: New CVSS Temporal Score link The most recent version of this document is available here: http://aix.software.ibm.com/aix/efixes/security/libodm_advisory.asc =============================================================================== VULNERABILITY SUMMARY VULNERABILITY: Arbitary file overwrite symlink in libodm PLATFORMS: 6.1, and 7.1 releases VIOS 2.2.* SOLUTION: Apply the fix as described below THREAT: A local attacker could gain lateral or elevated privileges |CVE Number: CVE-2014-3977 Reboot required? YES Workarounds? NO Protected by FPM? NO Protected by SED? NO =============================================================================== DETAILED INFORMATION I. DESCRIPTION AIX could allow a arbitrary file overwrite symlink vulnerability due to libodm.a bug. II. CVSS CVSS Base Score: 6.9 | CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/93595 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (AV:L/AC:M/Au:N/C:C/I:C/A:C) III. PLATFORM VULNERABILITY ASSESSMENT Note: To use the following commands on VIOS you must first execute: oem_setup_env To determine if your system is vulnerable, execute the following command: lslpp -L bos.rte.odm The following fileset levels are vulnerable: AIX Fileset Lower Level Upper Level KEY -------------------------------------------------------- bos.rte.odm 6.1.7.0 6.1.7.16 key_w_fix bos.rte.odm 6.1.8.0 6.1.8.0 key_w_fix bos.rte.odm 6.1.9.0 6.1.9.0 key_w_fix bos.rte.odm 7.1.1.0 7.1.1.16 key_w_fix bos.rte.odm 7.1.2.0 7.1.2.15 key_w_fix bos.rte.odm 7.1.3.0 7.1.3.0 key_w_fix AIX Fileset (VIOS) Lower Level Upper Level ---------------------------------------------------------------- bos.rte.odm 6.1.7.0(2.2.1.0) 6.1.7.16(2.2.1.8) bos.rte.odm 6.1.8.0(2.2.2.0) 6.1.8.0(2.2.2.4) bos.rte.odm 6.1.9.0(2.2.3.0) 6.1.9.0 (2.2.3.2) IV. SOLUTIONS A. APARS IBM has assigned the following APARs to this problem: AIX Level APAR number Availability KEY ------------------------------------------------------------ 6.1.7 IV60313 08/29/2014 SP10 key_w_fix 6.1.8 IV60311 08/29/2014 SP5 key_w_fix 6.1.9 IV60299 06/03/2014 SP3 key_w_fix 7.1.1 IV60312 08/29/2014 SP10 key_w_fix 7.1.2 IV60314 08/29/2014 SP5 key_w_fix 7.1.3 IV60303 06/03/2014 SP3 key_w_fix Subscribe to the APARs here: http://www.ibm.com/support/docview.wss?uid=isg1IV60313 http://www.ibm.com/support/docview.wss?uid=isg1IV60311 http://www.ibm.com/support/docview.wss?uid=isg1IV60299 http://www.ibm.com/support/docview.wss?uid=isg1IV60312 http://www.ibm.com/support/docview.wss?uid=isg1IV60314 http://www.ibm.com/support/docview.wss?uid=isg1IV60303 By subscribing, you will receive periodic email alerting you to the status of the APAR, and a link to download the fix once it becomes available. B. FIXES Fixes are available. The fixes can be downloaded via ftp from: ftp://aix.software.ibm.com/aix/efixes/security/libodm_ifix.tar The link above is to a tar file containing this signed advisory, fix packages, and PGP signatures for each package. The fixes below include prerequisite checking. This will enforce the correct mapping between the fixes and AIX Technology Levels. AIX Level Interim Fix (*.Z) KEY --------------------------------------------------- 6.1.7.9 IV60313s9a.140515.epkg.Z key_w_fix 6.1.8.4 IV60311s4a.140515.epkg.Z key_w_fix 6.1.9.2 IV60299s2a.140515.epkg.Z key_w_fix 7.1.1.9 IV60312s9a.140515.epkg.Z key_w_fix 7.1.2.4 IV60314s4a.140515.epkg.Z key_w_fix 7.1.3.2 IV60303s2a.140515.epkg.Z key_w_fix VIOS Level Interim Fix (*.Z) ------------------------------------- 2.2.1.8 IV60313s9a.140515.epkg.Z 2.2.2.4 IV60311s4a.140515.epkg.Z 2.2.3.2 IV60299s2a.140515.epkg.Z To extract the fixes from the tar file: tar xvf libodm_ifix.tar cd libodm_ifix Verify you have retrieved the fixes intact: The checksums below were generated using the "csum -h SHA1" (sha1sum) command is the followng: csum -h SHA1 (sha1sum) filename ------------------------------------------------------------------ 3f0fad2c7aa306c3734abfe37a90da27f2746b0b IV60313s9a.140515.epkg.Z 838ecef0b07ce299db71ee75b4b4cf7421bb512d IV60311s4a.140515.epkg.Z d2d9140cf0d34eb8315dd07b03e5aedecd640aba IV60299s2a.140515.epkg.Z ef83ed48203525ffa96c91184732778c8657e60e IV60312s9a.140515.epkg.Z 72b88677f23d2972f16d827b2d77e801eea833c7 IV60314s4a.140515.epkg.Z ba76617832bb803737fa4f8aee210846631632b3 IV60303s2a.140515.epkg.Z To verify the sum, use the text of this advisory as input to sha1sum. For example: csum -h SHA1 -i Advisory.asc sha1sum -c Advisory.asc These sums should match exactly. The PGP signatures in the tar file and on this advisory can also be used to verify the integrity of the fixes. If the sums or signatures cannot be confirmed, contact IBM AIX Security at security-alert@austin.ibm.com and describe the discrepancy. C. FIX AND INTERIM FIX INSTALLATION IMPORTANT: If possible, it is recommended that a mksysb backup of the system be created. Verify it is both bootable and readable before proceeding. To preview a fix installation: installp -a -d fix_name -p all # where fix_name is the name of the # fix package being previewed. To install a fix package: installp -a -d fix_name -X all # where fix_name is the name of the # fix package being installed. Interim fixes have had limited functional and regression testing but not the full regression testing that takes place for Service Packs; thus, IBM does not warrant the fully correct functionality of an interim fix. Interim fix management documentation can be found at: http://www14.software.ibm.com/webapp/set2/sas/f/aix.efixmgmt/home.html To preview an interim fix installation: emgr -e ipkg_name -p # where ipkg_name is the name of the # interim fix package being previewed. To install an interim fix package: emgr -e ipkg_name -X # where ipkg_name is the name of the # interim fix package being installed. V. WORKAROUNDS None VI. OBTAINING FIXES AIX security fixes can be downloaded from: ftp://aix.software.ibm.com/aix/efixes/security AIX fixes can be downloaded from: http://www.ibm.com/eserver/support/fixes/fixcentral/main/pseries/aix NOTE: Affected customers are urged to upgrade to the latest applicable Technology Level and Service Pack. VII. CONTACT INFORMATION If you would like to receive AIX Security Advisories via email, please visit: http://www.ibm.com/systems/support and click on the "My notifications" link. To view previously issued advisories, please visit: http://www14.software.ibm.com/webapp/set2/subscriptions/onvdq Comments regarding the content of this announcement can be directed to: security-alert@austin.ibm.com To request the PGP public key that can be used to communicate securely with the AIX Security Team you can either: A. Send an email with "get key" in the subject line to: security-alert@austin.ibm.com B. Download the key from a PGP Public Key Server. The key ID is: 0x28BFAA12 Please contact your local IBM AIX support center for any assistance. eServer is a trademark of International Business Machines Corporation. IBM, AIX and pSeries are registered trademarks of International Business Machines Corporation. All other trademarks are property of their respective holders. VIII. ACKNOWLEDGMENTS This vulnerability was originally reported by Jakub Wartak. Update to vulnerability requiring new Interim Fixes was reported by Tim Brown from Portcullis Computer Security Ltd. IX. REFERENCES: Complete CVSS Guide: http://www.first.org/cvss/cvss-guide.html On-line Calculator V2: http://nvd.nist.gov/cvss.cfm?calculator&adv&version=2 X-Force Vulnerability Database: http://xforce.iss.net/xforce/xfdb/75510 CVE-2012-2179: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2179 *The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Flash. Note: According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.13 (AIX) iEYEARECAAYFAlOQuLMACgkQ4fmd+Ci/qhLnzQCeJzqbd33F6y6+sGBOKTd4zOmX 9a0AniX5j1JrHDpSzf8CeHwPNbZEAx65 =dH4m -----END PGP SIGNATURE-----