Published:
01 October 1997
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-97.125 -- Hewlett-Packard Security Bulletin: #00070 2 October 1997 =========================================================================== Hewlett-Packard has released the following advisory concerning a vulnerability in the telnet service. This vulnerability may allow a denial of service attack against systems running HP-UX release 10.30. The following security bulletin is provided as a service to AUSCERT's members. As AUSCERT did not write this document, AUSCERT has had no control over its content. As such, 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. Contact information for HP is included in the Security Bulletin below. 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/information/advisories.html 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 4477 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 emergencies. - --------------------------BEGIN INCLUDED TEXT-------------------- - ------------------------------------------------------------------------- HEWLETT-PACKARD SECURITY BULLETIN: #00070, 1 Oct. 1997 - ------------------------------------------------------------------------- The information in the following Security Bulletin should be acted upon as soon as possible. Hewlett Packard 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 denial of service (DOS) attack via the telnet service PLATFORM: HP 9000 Series 700/800s running HP-UX release 10.30 DAMAGE: Denial of Service on systems running HP-UX release 10.30. SOLUTION: Apply the following patch: PHNE_12608 for HP-UX release 10.30 AVAILABILITY: The patch is available now. - ------------------------------------------------------------------------- I. A. Background Hewlett-Packard Company has discovered a defect in the telnet service provided with HP-UX release 10.30. Under some circumstances this defect could be used to cause a denial of service on the destination HP-UX release 10.30 system. B. Fixing the problem Install patch PHNE_12608 on all HP-UX release 10.30 systems. C. Recommended solution The patch is a cumulative patch and and fully fixes the discovered vulnerability. D. To subscribe to automatically receive future NEW HP Security Bulletins from the HP SupportLine Digest service via electronic mail, do the following: 1) From your Web browser, access the URL: http://us-support.external.hp.com (for US,Canada, Asia-Pacific, and Latin-America) http://europe-support.external.hp.com (for Europe) 2) On the HP Electronic Support Center main screen, select the hyperlink "Support Information Digests". 3) On the "Welcome to HP's Support Information Digests" screen, under the heading "Register Now", select the appropriate hyperlink "Americas and Asia-Pacific", or "Europe". 4) On the "New User Registration" screen, fill in the fields for the User Information and Password and then select the button labeled "Submit New User". 5) On the "User ID Assigned" screen, select the hyperlink "Support Information Digests". ** Note what your assigned user ID and password are for future reference. 6) You should now be on the "HP Support Information Digests Main" screen. You might want to verify that your email address is correct as displayed on the screen. From this screen, you may also view/subscribe to the digests, including the security bulletins digest. To get a patch matrix of current HP-UX and BLS security patches referenced by either Security Bulletin or Platform/OS, click on following screens in order: Technical Knowledge Database Browse Security Bulletins Security Bulletins Archive HP-UX Security Patch Matrix E. 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. Permission is granted for copying and circulating this Bulletin to Hewlett-Packard (HP) customers (or the Internet community) for the purpose of alerting them to problems, if and only if, the Bulletin is not edited or changed in any way, is attributed to HP, and provided such reproduction and/or distribution is performed for non-commercial purposes. Any other use of this information is prohibited. HP is not liable for any misuse of this information by any third party. _______________________________________________________________________ - -----End of Document ID: HPSBUX9710-070-------------------------------------- - --------------------------END INCLUDED TEXT-------------------- -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key iQCVAwUBNDN9BCh9+71yA2DNAQGQLwQAhGc6cvom1HMrBhi+fnYPvyoA9/pXzOCo xlFv7WTzjFDQUy1XBaJkzak8jkku9dmc0MYfz/e4pkD8IhTMxt4na4SPKMYk06Oo 7q+0+rvth+uW/ixy9mJvkuHpoiwSaDGW08qucNORFd1LjKXcLuFxv2Jra96TePNv wb/WHfwIXbc= =cf8h -----END PGP SIGNATURE-----