__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Center ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Hewlett-Packard login Vulnerability [Hewlett-Packard Security Bulletin #0160] July 17, 2001 22:00 GMT Number L-114 ______________________________________________________________________________ PROBLEM: The login(1) command allows restricted shell users to circumvent security checks. PLATFORM: HP9000 Series 700/800 running HP-UX releases 11.00, 11.11, and 10.20. DAMAGE: Restricted shell users can gain unauthorized access. SOLUTION: Apply the appropriate patch for the HP-UX release as prescribed by Hewlett Packard. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. The vulnerability in login can allow ASSESSMENT: restricted shell users to execute unauthorized commands and possibly break out of the restricted shell. ______________________________________________________________________________ [****** Start Hewlett-Packard Security Bulletin ******] ------------------------------------------------------------------------ HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #0160, 17 July '01 ------------------------------------------------------------------------ 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. ------------------------------------------------------------------------ ISSUE: The login(1) command allows restricted shell users to circumvent security checks. PLATFORM: HP9000 Series 700/800 running HP-UX releases 11.00, 11.11, and 10.20. DAMAGE: Restricted shell users can gain unauthorized access. SOLUTION: Install the appropriate patch for the HP-UX release: 11.00 PHCO_24083, 11.11 PHCO_23900, 10.20 PHCO_24267. AVAILABILITY: All patches are available now. ------------------------------------------------------------------------ I. Background Hewlett-Packard Company has learned of a defect in login which allows restricted shell users to execute unauthorized commands and possibly break out of the restricted shell. II. Recommended actions Apply the appropriate patch as listed herein: 11.11 PHCO_23900, 11.00 PHCO_24083, 10.20 PHCO_24267. III. 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[****** End Hewlett-Packard Security Bulletin ******] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Hewlett-Packard for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Center, 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. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. CIAC services are available to DOE, DOE contractors, and the NIH. 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