-----BEGIN PGP SIGNED MESSAGE----- __________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN HP-UX Denial of Service via telnet Vulnerability October 1, 1997 17:00 GMT Number I-001 ______________________________________________________________________________ PROBLEM: A vulnerability has been discoveded in the telnet service provided with HP-UX release 10.30. PLATFORM: HP 9000 Series 700/800s running HP-UX release 10.30. DAMAGE: Denial of Service SOLUTION: Apply available patch. ______________________________________________________________________________ VULNERABILITY Hewlett-Packard recommends that the information in this ASSESSMENT: advisory be acted upon as soon as possible. ______________________________________________________________________________ [ Start Hewlett-Packard Advisory ] Document ID: HPSBUX9710-070 Date Loaded: 971001 Title: Security Bulletin for telnet services in HP-UX rel. 10.30 - ------------------------------------------------------------------------- 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. 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HP is not liable for any misuse of this information by any third party. _______________________________________________________________________ - -----End of Document ID: HPSBUX9710-070-------------------------------------- [ End Hewlett-Packard Advisory ] ______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Hewlett-Packard for the information contained in this bulletin. ______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. 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If you are not part of these communities, please contact your agency's response team to report incidents. Your agency's team will coordinate with CIAC. The Forum of Incident Response and Security Teams (FIRST) is a world-wide organization. A list of FIRST member organizations and their constituencies can be obtained via WWW at http://www.first.org/. This document was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC) H-101: FreeBSD procfs Vulnerability H-102: SGI IRIX webdist.cgi, handler and wrap programs Vulnerabilities H-103: HP-UX X11/Motif Libraries Vulnerability H-104: HP-UX libXt Vulnerability H-105: HP-UX vuefile, vuepad, dtfile, & dtpad Vulnerabilities H-106: SGI IRIX LOCKOUT & login/scheme Vulnerabilities H-107: UNIX Buffer Overflow in rdist Vulnerability H-108: SunOS, Solaris libX11 Buffer Overflow Vulnerability H-109: Solaris DCE and AFS Integrated login Vulnerability H-110: Samba Servers Vulnerability -----BEGIN PGP SIGNATURE----- Version: 4.0 Business Edition iQCVAwUBNDkKWLnzJzdsy3QZAQGufgQA3oCI0syDC5ZxaWNAxjLSsjxXUNqipRe7 tOtRNuHJ4aezFkdZOXBj/dVdMGlwAmQ7YqpMonPlowQBk2SpUT41pfWmAFuF+bjq N3NbEoUZ2WwgtSu4kmsRNe4kE6qMliVSH/iP7i6R+w019/n00gM9wkO1+7Z+ZIwt XzxRnLg25GA= =0DZJ -----END PGP SIGNATURE-----