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-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2003.0299 -- HEWLETT-PACKARD COMPANY SECURITY BULLETIN: HPSBUX0304-254 (rev.1) Potential Security Vulnerability in CIFS/9000 Server 21 April 2003 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: CIFS/9000 Server (Samba) Vendor: Hewlett-Packard Operating System: HP-UX Platform: HP9000 Series 700/800 Impact: Root Compromise Access Required: Remote CVE Names: CAN-2003-0201 Ref: AL-2003.06 ESB-2003.0272 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ----------------------------------------------------------------- **REVISED 01** Source: HEWLETT-PACKARD COMPANY SECURITY BULLETIN: HPSBUX0304-254 Originally issued: 09 April 2003 Last revised: 18 April 2003 SSRT3536 Potential Security Vulnerability in CIFS/9000 Server (rev.1) ----------------------------------------------------------------- NOTICE: There are no restrictions for distribution of this Bulletin provided that it remains complete and intact. The information in the following Security Bulletin should be acted upon as soon as possible. Hewlett-Packard Company 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: CIFS/9000 Server is potentially vulnerable to altered SMB/CIFS network messages. IMPACT: Potential remote root access. PLATFORM: All HP9000 servers running CIFS/9000 Server versions up through A.01.09.02 on HP-UX 11.0, 11.11(11i), and 11.22 **REVISED 01** SOLUTION: HP-UX 11.0, 11.11, 11.22 --> Download and install the CIFS Server 2.2e version --> A.01.09.04 or subsequent from software.hp.com. MANUAL ACTIONS: Yes - Update --> HP-UX 11.0, 11.11, 11.22 --> Download and install the CIFS Server 2.2e version --> A.01.09.04 or subsequent from software.hp.com. AVAILABILITY: CIFS Server 2.2e version A.01.09.04 is available now from software.hp.com. CHANGE SUMMARY: Rev.01 - CIFS Server 2.2e version A.01.09.04 available for 11.00, 11.11, 11.22. ----------------------------------------------------------------- A. Background Note: Although having similar descriptions, this is a different vulnerability from that described in HPSBUX0303-251: SSRT3509 Potential Security Vulnerability in CIFS/9000 Server **REVISED 01** --> CIFS Server 2.2e version A.01.09.04 corrects --> both vulnerabilities. Note: The following are not vulnerable: HP OpenVMS HP NonStop Servers HP Secure Web Servers for HP Tru64 UNIX HP Secure Web Servers for HP Tru64 OpenVMS As further information becomes available HP will provide notice of the availability of any additional Samba updates through standard security bulletin announcements and information will be available from your normal HP Services support channel. CIFS Server version A.01.09.02 and prior may allow modified SMB/CIFS messages to cause smbd to overwrite portions of its own process address space. This could potentially be exploited to gain root access remotely. The latest version of CIFS Server adds checks for proper SMB/CIFS messages to prevent invalid smbd memory accesses. B. Recommended solution **REVISED 01** -> HP-UX 11.0, 11.11, 11.22 -> Update to version A.01.09.04 (available on software.hp.com). -> This version includes the fixes provided by the binary -> replacement files smbd.11.00 (version A.01.09.02) and -> smbd.11.00.r1 (A.01.09.03) previously available via FTP -> access. C. To subscribe to automatically receive future NEW HP Security Bulletins from the HP IT Resource Center via electronic mail, do the following: Use your browser to get to the HP IT Resource Center page at: http://itrc.hp.com Use the 'Login' tab at the left side of the screen to login using your ID and password. Use your existing login or the "Register" button at the left to create a login, in order to gain access to many areas of the ITRC. Remember to save the User ID assigned to you, and your password. In the left most frame select "Maintenance and Support". Under the "Notifications" section (near the bottom of the page), select "Support Information Digests". To -subscribe- to future HP Security Bulletins or other Technical Digests, click the check box (in the left column) for the appropriate digest and then click the "Update Subscriptions" button at the bottom of the page. or To -review- bulletins already released, select the link (in the middle column) for the appropriate digest. NOTE: Using your itrc account security bulletins can be found here: http://itrc.hp.com/cki/bin/doc.pl/screen=ckiSecurityBulletin To -gain access- to the Security Patch Matrix, select the link for "The Security Bulletins Archive". (near the bottom of the page) Once in the archive the third link is to the current Security Patch Matrix. Updated daily, this matrix categorizes security patches by platform/OS release, and by bulletin topic. Security Patch Check completely automates the process of reviewing the patch matrix for 11.XX systems. Please note that installing the patches listed in the Security Patch Matrix will completely implement a security bulletin _only_ if the MANUAL ACTIONS field specifies "No." The Security Patch Check tool can verify that a security bulletin has been implemented on HP-UX 11.XX systems providing that the fix is completely implemented in a patch with no manual actions required. The Security Patch Check tool cannot verify fixes implemented via a product upgrade. For information on the Security Patch Check tool, see: http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/ displayProductInfo.pl?productNumber=B6834AA The security patch matrix is also available via anonymous ftp: ftp://ftp.itrc.hp.com/export/patches/hp-ux_patch_matrix/ On the "Support Information Digest Main" page: click on the "HP Security Bulletin Archive". The PGP key used to sign this bulletin is available from several PGP Public Key servers. The key identification information is: 2D2A7D59 HP Security Response Team (Security Bulletin signing only) <security-alert@hp.com> Fingerprint = 6002 6019 BFC1 BC62 F079 862E E01F 3AFC 2D2A 7D59 If you have problems locating the key please write to security-alert@hp.com. Please note that this key is for signing bulletins only and is not the key returned by sending 'get key' to security-alert@hp.com. D. To report new security vulnerabilities, send email to security-alert@hp.com Please encrypt any 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. ----------------------------------------------------------------- (c)Copyright 2003 Hewlett-Packard Company Hewlett-Packard Company shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is subject to change without notice. Hewlett-Packard Company and the names of HP products referenced herein are trademarks and/or service marks of Hewlett-Packard Company. Other product and company names mentioned herein may be trademarks and/or service marks of their respective owners. ________________________________________________________________ - -----BEGIN PGP SIGNATURE----- Version: PGP Personal Security 7.0.3 iQA/AwUBPqBbXuAfOvwtKn1ZEQIabACcC29tIZM7KUAyXHIk1WfXhGdJeqQAoO2i Jd9CQB+0WzdI5uV0eVt8Yv5R =41CT - -----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. 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 use any or all of this information is the responsibility of each user or organisation, and should be done so in accordance with site policies and procedures. 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 system has been compromised, contact AusCERT or your representative in FIRST (Forum of Incident Response and Security Teams). 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----- Version: 2.6.3i Charset: noconv Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBPqQcIih9+71yA2DNAQH1+QQAjZw11mv7nuqwiwwAKUCcov5JCVA8rtmi 0NzQJPDRwEli0ZdcefUqFl/wB2gJiC2HXoDEtm4h5F9XSgnIwN3ilmb/0LF3JlGJ rQqCDY6lwJw0WdgbSgBc92T+eDjlsktsHIR9JeMLFkyKimVVRhxUIsmU3IQXzmLc dQ73XUWmtD0= =CcSi -----END PGP SIGNATURE-----