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-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2003.0378 -- HEWLETT-PACKARD COMPANY SECURITY BULLETIN: HPSBUX0305-261 SSRT3451 Potential Security Vulnerability in HP-UX network drivers (Data Leakage) 28 May 2003 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: HP-UX network drivers Publisher: Hewlett-Packard Operating System: HP-UX 10.20 HP-UX 11.00 Platform: HP9000 Series 700/800 Impact: Access Privileged Data Access Required: Remote CVE Names: CAN-2003-0001 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ----------------------------------------------------------------- Source: HEWLETT-PACKARD COMPANY SECURITY BULLETIN: HPSBUX0305-261 Originally issued: 27 May 2003 SSRT3451 Potential Security Vulnerability in HP-UX network drivers (Data Leakage) ----------------------------------------------------------------- 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: Potential for Ethernet device drivers to reuse packet data for padding. Cross-reference: CERT/cc VU#412115 and CVE CAN-2003-0001 IMPACT: Device drivers may not pad frames with null bytes, potential leakage of kernel memory. PLATFORM: HP9000 Series 700/800 runnning HP-UX releases 10.20 and 11.00. SOLUTION: Install appropriate device driver patches: for HP-UX 11.00 PHNE_28143 s700_800 lan3 LAN product cumulative patch PHNE_28636 s700_800 EISA 100BT cumulative patch for HP-UX 10.20 PHNE_28635 s700_800 EISA 100BT cumulative patch PHNE_28536 s800 LAN products cumulative patch PHNE_28535 s700 LAN products cumulative patch MANUAL ACTIONS: No AVAILABILITY: All patches are available now on <itrc.hp.com>. ----------------------------------------------------------------- A. Background CERT has reported that network device drivers may reuse old frame buffer data to pad packets resulting in an information leakage vulnerability that may allow remote harvesting of sensitive information from affected devices. http://www.kb.cert.org/vuls/id/412115 The only HP-UX network device drivers affected are: btlan0 for EISA on 10.20/11.00 lan3 for NIO on 10.20/11.00 NOT IMPACTED: HP NonStop Servers, HP Tru64 UNIX/TruCluster Server, HP OpenVMS B. Recommended solution These patches completely solve the identified problem, for HP-UX 11.00 PHNE_28143 s700_800 lan3 LAN product cumulative patch PHNE_28636 s700_800 EISA 100BT cumulative patch for HP-UX 10.20 PHNE_28635 s700_800 EISA 100BT cumulative patch PHNE_28536 s800 LAN products cumulative patch PHNE_28535 s700 LAN products cumulative patch To identify if your system uses the affected drivers, as root run ioscan to list all reportable hardware: #/sbin/ioscan -fkClan Class I H/W Path Driver S/W State H/W Type Description ============================================================ lan 1 8/20/5/1 btlan0 CLAIMED INTERFACE EISA card # ioscan -fkClan Class I H/W Path Driver S/W State H/W Type Description ============================================================ lan 0 56.1 lan3 CLAIMED INTERFACE NOTE: A reboot will be required after installation of these patches. 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 8.0 iQA/AwUBPtJ1JuAfOvwtKn1ZEQJRogCeLcOM96GrIJ1kuNp0nAWitDUYPK4An0Kb SCTl4AZLbtWXfdQOfBdcl27s =pRQC - -----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 iQCVAwUBPtTmsCh9+71yA2DNAQEI3gP/c6BFtHUQ1XGsPLxcrh8ja6RPOmpiu4B0 9VBQ+69YIN7lM+wIedMzZ99bE8AqK5YBnlGYFfgFAt99fxey5GK9MpB5nN1nN12O KZTflTD4qQNECnC6Vzj86goafm6KimBVzIt4kWR4BQ9Yxl9Ct04PHD7vDcW5v4wt pbw+XEhmJlc= =amqU -----END PGP SIGNATURE-----