Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2006.0377 -- [AIX] Vulnerability found in lsmcode command 31 May 2006 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: lsmcode Publisher: IBM Operating System: AIX 5.1, 5.2 and 5.3 Impact: Root Compromise Access: Existing Account - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 IBM SECURITY ADVISORY First Issued: Fri May 26 15:45:51 CDT 2006 ========================================================================== VULNERABILITY SUMMARY VULNERABILITY: A vulnerability in lsmcode may allow local users to execute arbitrary code with root privileges. PLATFORMS: AIX 5.1, 5.2 and 5.3. SOLUTION: Apply the APAR, interim fix or workaround as described below. THREAT: A local user may execute arbitrary code as root. CERT VU Number: n/a CVE Number: n/a ========================================================================= DETAILED INFORMATION I. Description =============== A vulnerability was discovered in the lsmcode command that may allow a local attacker to execute arbitrary code as the root user. The lsmcode command is used to display microcode and firmware levels of system adapters and devices. lsmcode ships as part of the bos.diag.util fileset. II. Impact ========== A local user may execute arbitrary code as the root user. III. Solutions =============== A. Official Fix IBM provides the following fixes: APAR number for AIX 5.1.0: IY85518 (available approx. 7/19/06) APAR number for AIX 5.2.0: IY88524 (available approx. 8/23/06) APAR number for AIX 5.3.0: IY85517 (available approx. 8/23/06) NOTE: Affected customers are urged to upgrade to the latest applicable Technology Level. B. Interim Fix Interm fixes will be available within the coming week. When available, the ifixes can be downloaded via ftp from aix.software.ibm.com . C. Workaround Remove Non-Root Permissions +---------------- To prevent non-root users from running the command # chmod 500 /usr/sbin/lsmcode These permissions will only allow the root user to run lsmcode. IV. Obtaining Fixes =================== AIX Version 5 APARs can be downloaded from: http://www.ibm.com/servers/eserver/support/unixservers/aixfixes.html Security related Interim Fixes can be downloaded from: ftp://aix.software.ibm.com/aix/efixes/security V. 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 send email to security-alert@austin.ibm.com with a subject of "get key". The key can also be downloaded from a PGP Public Key Server. The key id is 0x9391C1F2. 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. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (AIX) iD8DBQFEd4FzofN/JhsU8pkRApkgAJwL0ST42A0IhFTzeKWaiiZr7/VxBACfbm+z HZ+wnjrTmK84krE2qIG9oxk= =5yUc - -----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 iQCVAwUBRH0n2ih9+71yA2DNAQKnEgP/c6IAKqayDk7yyOy32M2xYy23fnaC6JyQ L83nMCveox+fLug48MYMiBP+NniAzJVtozxuBccNAxnVYzRkl10Rruxtq5orLIa+ yVCay6BcMs+6o+vVG7h07RtgMUIw4ltHXcv8gqPVyJkN+/XEIQNAcFTERcs6Kt45 ggY0D/2db30= =BKd5 -----END PGP SIGNATURE-----