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Security Bulletins Digest
From: aleph1 () UNDERGROUND ORG (Aleph One)
Date: Mon, 20 Mar 2000 08:41:13 -0800
HP Support Information Digests =============================================================================== o HP Electronic Support Center World Wide Web Service --------------------------------------------------- If you subscribed through the HP Electronic Support Center and would like to be REMOVED from this mailing list, access the HP Electronic Support Center on the World Wide Web at: http://us.itresourcecenter.hp.com/ Login using your HP Electronic Support Center User ID and Password. Then select Support Information Digests. You may then unsubscribe from the appropriate digest. =============================================================================== Digest Name: Daily Security Bulletins Digest Created: Mon Mar 20 3:00:03 PST 2000 Table of Contents: Document ID Title --------------- ----------- HPSBUX0002-108 Sec. Vulnerability with Aserver (revised 02) The documents are listed below. ------------------------------------------------------------------------------- Document ID: HPSBUX0002-108 Date Loaded: 20000319 Title: Sec. Vulnerability with Aserver (revised 02) ------------------------------------------------------------------------- **REVISED 02** HEWLETT-PACKARD COMPANY SECURITY ADVISORY: #00108, 01 Jan 2000 Last Revised: 17 March, 2000 ------------------------------------------------------------------------- The information in the following Security Advisory 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 Advisory as soon as possible. ------------------------------------------------------------------------- PROBLEM: /opt/audio/bin/Aserver can be used to gain root access. PLATFORM: HP9000 Series 7/800 running HP-UX releases 10.X and 11.X DAMAGE: Root access is possible. SOLUTION: **REVISED 02** Change the Aserver permissions. AVAILABILITY: This advisory will be updated when patches are available. CHANGE SUMMARY: This revision contains revised permission recommendations. ------------------------------------------------------------------------- I. A. Background A procedure to use /opt/audio/bin/Aserver to gain root access has been made public. B. Recommended solution **REVISED 01** | The need for suid permissions is being reviewed. | The only requirement for suid currently identified | is to allow any user to force a restart of the Aserver. | This feature may be eventually be removed. Until a | patch is available the recommended solution, as root | is: | chmod 555 /opt/audio/bin/Aserver **REVISED 02** || Until a patch is available that fixes the problem || installing an Aserver patch will restore the original || permissions. It is safer to set the 555 permissions || each time the system is started. One way to do that || is to create /sbin/rc2.d/S769audio with 555 permissions || containing the following script: || ||#!/sbin/sh || ||PATH=/sbin:/usr/sbin:/usr/bin ||export PATH || ||case $1 in ||start_msg) || echo "chmod 555 /opt/audio/bin/Aserver" || ;; || ||'start') || chmod 555 /opt/audio/bin/Aserver || ;; || ||*) || echo "usage: $0 start" || ;; ||esac || ||exit 0 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://us-support.external.hp.com (for US, Canada, Asia-Pacific, & Latin-America) http://europe-support.external.hp.com (for Europe) Under the Maintenance and Support Menu (Electronic Support Center): click on the "more..." link. Then - To -subscribe- to future HP Security Bulletins, or To -review- bulletins already released click on "Support Information Digests" near the bottom of the page, under "Notifications". Login with your user ID and password (or register for one). (Remember to save the User ID assigned to you, and your password). On the "Support Information Digest Main" page: click on the "HP Security Bulletin Archive". Once in the archive the third link is to our current Security Patch Matrix. Updated daily, this matrix categorizes security patches by platform/OS release, and by bulletin topic. The security patch matrix is also available via anonymous ftp: us-ffs.external.hp.com ~ftp/export/patches/hp-ux_patch_matrix 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. Permission is granted for copying and circulating this advisory to Hewlett-Packard (HP) customers (or the Internet community) for the purpose of alerting them to problems, if and only if, the advisory 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: HPSBUX0002-108--------------------------------------
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