-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ----------------------------------------------------------------- Source: HEWLETT-PACKARD COMPANY SECURITY BULLETIN: HPSBMI0311-006 Originally issued: 24 November 2003 SSRT3647 ProCurve 5300 series and RPC worms ----------------------------------------------------------------- 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: HP ProCurve Switches can exhibit deteriorating performance and fail to function in presence of RPC worms such as Welchia and Blaster. IMPACT: Potential for denial of service. PLATFORM: Only HP ProCurve Switch 5304XL (J4850A), 5348XL (J4849A), 5372XL (J4848A), 5308XL (J4819A). SOLUTION: Upgrade switch software to E.07.40 or subsequent. MANUAL ACTIONS: Non-HP-UX only This is not an HP-UX issue. Install firmware E.07.40, or newer. AVAILABILITY: The firmware is available now. (See below for details). ----------------------------------------------------------------- A. Background The HP ProCurve Switches potentially suffer an adverse reaction to the presence of the Blaster/Welchia worms. Networking performance deteriorates resulting in the appearance of a Denial of Service for connected end nodes, generally running Microsoft Windows operating systems. Only the following HP ProCurve Switches are affected: 5304XL (J4850A), 5348XL (J4849A), 5372XL (J4848A), 5308XL (J4819A). NOTE: This problem does not directly impact HP-UX, MPE/iX, HP NonStop Servers, HP OpenVMS, nor HP Tru64 UNIX/Trucluster Server. B. Recommended solution Several steps need to be taken to mitigate the problem. 1. Locate and remove worms from infected and connected network clients. To accomplish that task, download the Snort* utility which is designed to identify a network client infected by the Blaster and/or Welchia worms. http://www.snort.org/ Follow the recommended instructions provided to install and to locate and remove these worms from your network. The following link provides some details of how to detect traffic that is caused by such worms and the data from this link can be used to compare to the traces that you capture off your network. http://securityresponse.symantec.com/avcenter/venc/data/ detecting.traffic.due.to.rpc.worms.html 2. Administrators should take actions to prevent worm infiltrations on the network by ensuing that the latest patches for security vulnerabilities are applied to end clients via Microsoft Security releases. http://v4.windowsupdate.microsoft.com 3. Download and install the new switch software version E.07.40 or subsequent from: http://www.hp.com/rnd/software/switches.htm If further assistance is required, contact your local ProCurve Customer Care Center, or visit their web site at: http://www.hp.com/rnd/assistance/assistance.htm * Snort is not included with HP Operating Systems and is not supported by HP; the information has been included in this document as a reference to customers who may be interested in evaluating it as it applies to this particular subject. 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) 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/AwUBP8Jvb+AfOvwtKn1ZEQKV7gCgw/7lNQC1Yni7+gNIMU5TPN0mFe4AnR/U dk5dGtpAFyy54SULPRx2WuwO =0BVW -----END PGP SIGNATURE-----