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-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2003.0777 -- HEWLETT-PACKARD COMPANY SECURITY BULLETIN: HPSBUX0309-281 SSRT3631 Rev.4 sendmail 13 November 2003 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: sendmail Publisher: Hewlett-Packard Operating System: HP-UX B.11.22 HP-UX B.11.11 HP-UX B.11.04 (VVOS) HP-UX B.11.00 Impact: Root Compromise Access Required: Remote CVE Names: CAN-2003-0694 CAN-2003-0681 Ref: AL-2003.17 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ----------------------------------------------------------------- **REVISED 04** Source: HEWLETT-PACKARD COMPANY SECURITY BULLETIN: HPSBUX0309-281 Originally issued: 21 September 2003 Last revised: 11 November 2003 SSRT3631 Rev.4 sendmail ----------------------------------------------------------------- NOTICE: There are no restrictions for distribution of this Bulletin provided that it remains complete and intact. 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. ----------------------------------------------------------------- PROBLEM: Potential security vulnerability in sendmail IMPACT: Potential unauthorized Privileged Access. PLATFORM: HP-UX releases B.11.00, B.11.04 (VVOS), B.11.11, B.11.22 SOLUTION: Download and install HPSecurityBul281a.depot. MANUAL ACTIONS: Yes - NonUpdate Download and install HPSecurityBul281a.depot. AVAILABILITY: HPSecurityBul281a.depot is available from the ftp site described below. CHANGE SUMMARY: Rev.01 - Added fix for CAN-2003-0681. Rev.02 - sendmail.811.11.22.r5 replaces sendmail.811.11.22.r4. Rev.03 - HPSecurityBul281.depot available. Rev.04 - HPSecurityBul281a.depot available. ----------------------------------------------------------------- A. Background A potential security vulnerability with sendmail has been reported in HP-UX. This potential vulnerability may result in unauthorized Privileged Access. This is the vulnerability reported in CERT/CC CA-2003-25: <http://www.cert.org/advisories/CA-2003-25.html> New versions are available which also contain the fix for the problem reported here: <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0681> AFFECTED VERSIONS The following is a list by HP-UX revision of affected filesets and the fileset revision or patch containing the fix. To determine if a system has an affected version, search the output of "swlist -a revision -l fileset" for an affected fileset, then determine if a fixed revision or the applicable patch is installed. HP-UX B.11.22 ============= InternetSrvcs.INETSVCS2-RUN InternetSrvcs.INETSVCS-RUN --> fix: install HPSecurityBul281a.depot HP-UX B.11.11 ============= SMAIL-811.INETSVCS-SMAIL --> fix: install HPSecurityBul281a.depot InternetSrvcs.INETSVCS-RUN --> fix: install HPSecurityBul281a.depot HP-UX B.11.04 ============= InternetSrvcs.INETSVCS-RUN --> fix: install HPSecurityBul281a.depot HP-UX B.11.00 ============= SMAIL-811.INETSVCS-SMAIL --> fix: install HPSecurityBul281a.depot InternetSrvcs.INETSVCS-RUN --> fix: install HPSecurityBul281a.depot END AFFECTED VERSIONS B. Recommended solution **REVISED 04** --> Note: The depot listed in Rev.3 (HPSecurityBul281.depot) --> had an incorrect file name for --> sendmail.893.11.11.r4. --> As a result the installation failed on B.11.11 --> with sendmail 8.9.3. HPSecurityBul281a.depot --> corrects the problem. System: hprc.external.hp.com (192.170.19.51) Login: sendmail Password: sendmail FTP Access: ftp://sendmail:sendmail@hprc.external.hp.com/ or: ftp://sendmail:sendmail@192.170.19.51/ or: ftp hprc.external.hp.com Note: There is an ftp defect in IE5 that may result in a browser hang. To work around this: - Select Tools -> Internet Options -> Advanced - Un-check the option: [ ] Enable folder view for FTP sites **REVISED 04** -->File: HPSecurityBul281a.depot.gz ================================================== To fix the problem: 1. Install the patches recommended in HPSBUX0304-253. -->2. Download and install HPSecurityBul281a.depot Details: -->1. HPSBUX0304-253 MUST be implemented before proceeding. --> Note: If the files recommended in the Revision 2 of this bulletin have been installed there is no need to install HPSecurityBul281a.depot. This depot is a repackaging of the previous files. -->2. Download and install HPSecurityBul281a.depot.gz: a. Download HPSecurityBul281a.depot.gz b. Unpack the file with gunzip(1) c. Verify the cksum or the md5 sum. cksum: 2465545458 6041600 HPSecurityBul281a.depot md5: MD5 (HPSecurityBul281a.depot) = 0f5b10df931513ad352f4ef9d796a897 d. Extract the "readme" file for further information: cd directory_containing_depot swlist -d -l product -a readme @ $PWD/HPSecurityBul281a.depot e. Install HPSecurityBul281a.depot with swinstall(1). ================================================== Note: If you receive either of the following messages after applying the fix, please follow the recommended action. warning: /etc/mail/aliases has world read or write permission. This is unsafe. warning: /etc/mail/aliases.db has world read or write permission. This is unsafe. Recommended action Execute the following commands. chmod 640 /etc/mail/aliases chmod 640 /etc/mail/aliases.db sendmail -bi 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://itrc.hp.com Use the 'Login' tab at the left side of the screen to login using your ID and password. Use your existing login or the "Register" button at the left to create a login, in order to gain access to many areas of the ITRC. Remember to save the User ID assigned to you, and your password. In the left most frame select "Maintenance and Support". Under the "Notifications" section (near the bottom of the page), select "Support Information Digests". To -subscribe- to future HP Security Bulletins or other Technical Digests, click the check box (in the left column) for the appropriate digest and then click the "Update Subscriptions" button at the bottom of the page. or To -review- bulletins already released, select the link (in the middle column) for the appropriate digest. NOTE: Using your itrc account security bulletins can be found here: http://itrc.hp.com/cki/bin/doc.pl/screen=ckiSecurityBulletin To -gain access- to the Security Patch Matrix, select the link for "The Security Bulletins Archive". (near the bottom of the page) Once in the archive the third link is to the current Security Patch Matrix. Updated daily, this matrix categorizes security patches by platform/OS release, and by bulletin topic. Security Patch Check completely automates the process of reviewing the patch matrix for 11.XX systems. For information on the Security Patch Check tool, see: http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/ displayProductInfo.pl?productNumber=B6834AA The security patch matrix is also available via anonymous ftp: ftp://ftp.itrc.hp.com/export/patches/hp-ux_patch_matrix/ On the "Support Information Digest Main" page: click on the "HP Security Bulletin Archive". The PGP key used to sign this bulletin is available from several PGP Public Key servers. The key identification information is: 2D2A7D59 HP Security Response Team (Security Bulletin signing only) <security-alert@hp.com> Fingerprint = 6002 6019 BFC1 BC62 F079 862E E01F 3AFC 2D2A 7D59 If you have problems locating the key please write to security-alert@hp.com. Please note that this key is for signing bulletins only and is not the key returned by sending 'get key' to security-alert@hp.com. 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. ----------------------------------------------------------------- (c)Copyright 2003 Hewlett-Packard Company Hewlett-Packard Company shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is subject to change without notice. Hewlett-Packard Company and the names of HP products referenced herein are trademarks and/or service marks of Hewlett-Packard Company. Other product and company names mentioned herein may be trademarks and/or service marks of their respective owners. _________________________________________________________________ - -----BEGIN PGP SIGNATURE----- Version: PGP 8.0.2 iQA/AwUBP7FR8uAfOvwtKn1ZEQJTaQCbB68+TcyJs3UF4Ay0yuv66lrqwN0AnA78 p17PXepP2RkYOtwKbt8fLNlU =u6iK - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. This security bulletin is provided as a service to AusCERT's members. 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Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 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 member emergencies only. -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBP7Mbkyh9+71yA2DNAQEFDAP9FOgjvGnXDqhQGRg/cIeMrggH8K+vOh2B qyot9pZYYZp87DYR/Sh1cUB043M2+vF/ouNiEmjdNskM0CQcFoVrxxh0qy/fCieC qkxLuKr5NfeoIr2br6svEWhuoYIKZJ/YUUk+d1XKFphKZxHnGVqk/6QQ1q1FD7J5 e5Mz1jHb4bM= =4SoT -----END PGP SIGNATURE-----