Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2008.0190 -- [AIX] IBM Pegasus CIM Server for Director on AIX vulnerabilities 22 February 2008 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Pegasus CIM Server for Director Publisher: IBM Operating System: AIX 6.1 AIX 5.3 AIX 5.2 Impact: Root Compromise Denial of Service Access: Remote/Unauthenticated CVE Names: CVE-2008-0495 CVE-2008-0003 Ref: ESB-2008.0017 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 IBM SECURITY ADVISORY First Issued: Thu Feb 21 10:43:47 CST 2008 =============================================================================== VULNERABILITY SUMMARY VULNERABILITY: IBM Pegasus CIM Server for Director on AIX vulnerabilities. PLATFORMS: AIX 5.2, 5.3, 6.1 SOLUTION: Apply the fix or workaround as described below. THREAT: A remote attacker may run arbitrary code with root privileges, and/or cause a Denial of Service (DoS) attack. CERT VU Number: n/a CVE Number: CVE-2008-0003, CVE-2008-0495 =============================================================================== DETAILED INFORMATION I. OVERVIEW IBM Pegasus CIM Server for Director provides common information model (CIM) object management. This is a framework supporting Web-Based Enterprise Management (WBEM) services. WBEM is a platform and resource independent standard from the Distributed Management Task Force (DMTF). WBEM defines a CIM, and communication protocol for resource monitoring and control. Two vulnerabilities have been addressed in the IBM Pegasus CIM Server for Director. The first is a stack buffer overflow flaw found in the PAM authentication code in the CIM management server. The second is a Denial of Service (DoS) vulnerability against the CIM service daemon itself. II. DESCRIPTION A stack-based buffer overflow vulnerability exists in the IBM Pegasus CIM Server for Director in which an unauthenticated remote user could trigger this flaw and potentially execute arbitrary code with root privileges (CVE-2008-0003). In addition a denial-of-service (DoS) issue exists in the IBM Pegasus CIM Server for Director. III. IMPACT The successful exploitation of these vulnerabilities allows a non-privileged remote user to execute code with root privileges and/or cause a denial of service against the CIM server. IV. PLATFORM VULNERABILITY ASSESSMENT To determine if your system is vulnerable, run the following commands: lslpp -L sysmgt.pegasus.cimserver.rte The following fileset levels are vulnerable for all supported versions of AIX: AIX Fileset Fileset Levels ---------------------------------------------------------------- sysmgt.pegasus.cimserver.rte 2.5.1.20 2.5.1.21 2.5.1.30 sysmgt.pegasus.cimserver.rte 2.6.1.0 2.6.1.1 V. SOLUTIONS A. Installable images including these fixes for AIX 5.3 and AIX 6.1 will be available for IBM Pegasus CIM Server on the IBM Director Download website approximately in April 2008. These images will install fileset 'sysmgt.cimserver.pegasus.rte' level 2.6.1.20. B. INTERIM FIXES Interim Fixes are available. The fixes can be downloaded in two ways: 1. Via HTTP or Download Director from the IBM Director Web Download Site: https://www14.software.ibm.com/webapp/iwm/web/preLogin.do?source=dmp NOTE: Once logged in to the site, the fixes can be located using the following steps: Fixes for Pegasus 2.6.1 on AIX: - Select IBM Director for AIX and accept the license. - Find the fixes in the IBM Pegasus CIM Server for Director on AIX section: AIX 5.2: Efix_644427.080123_AIX5.2.tar.gz AIX 5.3: Efix_644427.080123_AIX5.3_6.1.tar.gz AIX 6.1: Efix_644427.080123_AIX5.3_6.1.tar.gz Fixes for Pegasus 2.5.1 on AIX: - Select IBM Director-Archives. - Find the fixes in the IBM Director for AIX and Linux on POWER section: AIX (all versions): Efix_641416.080123_AIX.tar.gz Install instructions are included in the file: CIM_Pegasus_Providers_AIX.README.html 2. Via FTP from the AIX Software Download Site: ftp://aix.software.ibm.com/aix/efixes/security/pegasus_ifix.tar The link above is to a tar file containing this signed advisory, interim fix packages, and PGP signatures for each package. The interim fixes below include prerequisite checking. This will enforce the correct mapping between the fixes and AIX Technology Levels. Version AIX Release Interim fix ----------------------------------------------------------------- Pegasus 2.5.1 All Efix_641416.080123_AIX.tar.gz Pegasus 2.6.1 5.2 Efix_644427.080123_AIX5.2.tar.gz Pegasus 2.6.1 5.3, 6.1 Efix_644427.080123_AIX5.3_6.1.tar.gz To extract the fixes from the tar file: tar xvf pegasus_ifix.tar cd pegasus_ifix IMPORTANT: If possible, it is recommended that a mksysb backup of the system be created. Verify it is both bootable and readable before proceeding. These interim fixes have not been fully regression tested; thus, IBM does not warrant the fully correct functionality of the interim fix. Verify you have retrieved the fixes intact: The checksums below were generated using the "sum", "cksum", "csum -h MD5" (md5sum), and "csum -h SHA1" (sha1sum) commands and are as follows: sum filename - - ------------------------------------ 53770 3610 Efix_641416.080123_AIX.tar.gz 47815 169 Efix_644427.080123_AIX5.2.tar.gz 33258 169 Efix_644427.080123_AIX5.3_6.1.tar.gz cksum filename - - ------------------------------------------ 4271833127 3695746 Efix_641416.080123_AIX.tar.gz 1284858963 172713 Efix_644427.080123_AIX5.2.tar.gz 2454864014 172998 Efix_644427.080123_AIX5.3_6.1.tar.gz csum -h MD5 (md5sum) filename - - ---------------------------------------------------------- 8d71ff3be9f60722d4f158bb0e5c2558 Efix_641416.080123_AIX.tar.gz 3aadb16572166fd190a6fb63ddbf85da Efix_644427.080123_AIX5.2.tar.gz 04c876224b116e2c23778ca941669e29 Efix_644427.080123_AIX5.3_6.1.tar.gz csum -h SHA1 (sha1sum) filename - - ------------------------------------------------------------------ 1b9edb622a24c06cf8155fd836235a4a337fbfaf Efix_641416.080123_AIX.tar.gz 3c69ca8f6213312c4179e6e026cd3ebe8469b7ed Efix_644427.080123_AIX5.2.tar.gz 022a84b9bd0710bce3dc295b96ddeb0214355563 Efix_644427.080123_AIX5.3_6.1.tar.gz To verify the sums, use the text of this advisory as input to csum, md5sum, or sha1sum. For example: csum -h SHA1 -i Advisory.asc md5sum -c 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. INTERIM FIX INSTALLATION Please refer to the installation instructions in the following files: Efix_641416_readme.html Efix_644427_readme.html VI. WORKAROUNDS There are no workarounds for these vulnerabilities other than uninstalling the affected software. VII. OBTAINING FIXES Security related Interim Fixes can be downloaded from: ftp://aix.software.ibm.com/aix/efixes/security VIII. CONTACT INFORMATION If you would like to receive AIX Security Advisories via email, please visit: http://www14.software.ibm.com/webapp/set2/subscriptions/pqvcmjd 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: 0xA6A36CCC 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. IX. ACKNOWLEDGMENTS RedHat security auditors and the IBM Hardware Management Console for discovering/reporting these vulnerabilities. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (AIX) iD8DBQFHvbHe8lficKajbMwRArWuAKCZTY4Cx7ttVtvREp1ZkW/bgZPEFACaA8bv LPxfbPEyDgoquvEG+E/NNbg= =4y99 - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBR74bxSh9+71yA2DNAQIz2wQAkLhGbHj63qKzkOhXugeeaN9uev6b2LC7 g13PdtbfUuW+Ha4RtgH6ZzXYodEq9Vl/0P3licxLm8vfZJL9+W3PmyvVvGMAfs4y T1eWN9GwJuhgYadQsUoE1zuLQe0VmAPGAy3oorJfWNb8fr/90S+5K1/QsKtbVMSy miiCwkgmmyI= =t9ss -----END PGP SIGNATURE-----