From aleph1@NATIONWIDE.NET Fri May 1 00:50:45 1998 From: Aleph One To: BUGTRAQ@NETSPACE.ORG Date: Wed, 29 Apr 1998 15:45:25 -0500 Subject: HPSBUX9804-078 Security Vulnerability in Openmail on HP-UX ---------- Forwarded message ---------- Date: Wed, 29 Apr 1998 08:18:34 -0400 From: HP Electronic Support Center To: security_info@us-support2.external.hp.com Subject: Security Bulletins Digest 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-support2.external.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: Wed Apr 29 6:00:23 EDT 1998 Table of Contents: Document ID Title --------------- ----------- HPSBUX9804-078 Security Vulnerability in Openmail on HP-UX The documents are listed below. ------------------------------------------------------------------------------- Document ID: HPSBUX9804-078 Date Loaded: 980429 Title: Security Vulnerability in Openmail on HP-UX ------------------------------------------------------------------------- HEWLETT-PACKARD SECURITY ADVISORY: #00078, 29 April 1998 ------------------------------------------------------------------------- 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: Insecure configuration of any version of OpenMail. PLATFORM: Any HP 9000 series 700/800 systems running OpenMail. DAMAGE: Users can run arbitrary shell commands. SOLUTION: Reconfigure OpenMail per the OpenMail Technical Guide. AVAILABILITY: N/A ------------------------------------------------------------------------- I. A. Background Hewlett-Packard has learned of an OpenMail server misconfiguration that can give users the ability to run arbitrary shell commands. This applies to all currently supported OpenMail versions (B.05.01 (GR4) and B.05.10 (GR5), as well as the earlier B.04.01 (GR3) revision. B. Fixing the problem Ref: [OpenMail Technical Guide, pages 3-366, and 3-369] Hewlett-Packard notes that this issue has already been adequately addressed in OpenMail. There is a general parameter setting (UAL_PRINT_SERVER_ONLY) in the general.cfg file, that, if set to TRUE, forces all server printing to go through OpenMail's print server. The general customization file general.cfg is located in /var/opt/openmail/sys, as is the print server's configuration file print.cfg. On the client all that is necessary is to then change the 'Printer Server Command' to point to one of the configured printers. OpenMail's print server uses a configuration file to configure available printers, and validates each print request against its configured printers. Any print requests that do not match the required syntax will not be executed. More information about OpenMail's print server and how to configure it can be found in the OpenMail Technical Guide (pages 3-366 to 3-369 for the GR5 edition) C. 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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 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: HPSBUX9804-078--------------------------------------