-----BEGIN PGP SIGNED MESSAGE----- - ---EXTERNAL RELEASE---EXTERNAL RELEASE---EXTERNAL RELEASE---EXTERNAL RELEASE--- ======= ============ ====== ====== ======= ============== ======= ======= === === ==== ====== ====== === =========== ======= ======= === =========== === ======= === === === ==== === ===== === ======= ============== ===== === ===== ======= ============ ===== = ===== EMERGENCY RESPONSE SERVICE OUTSIDE ADVISORY REDISTRIBUTION 26 July 1996 12:00 GMT Number: ERS-OAR-E01-1996:009.1 =============================================================================== The IBM-ERS Outside Advisory Redistribution is designed to provide customers of the IBM Emergency Response Service with access to the security advisories sent out by other computer security incident response teams, vendors, and other groups concerned about security. IBM makes no representations and assumes no responsibility for the contents or accuracy of the advisories themselves. IBM-ERS is forwarding the following information from AUSCERT. Contact information for AUSCERT is included in the forwarded text below; please contact them if you have any questions or need further information. =============================================================================== ********************** FORWARDED INFORMATION STARTS HERE ********************** ============================================================================= AL-96.02 AUSCERT Alert Vulnerability in Solaris 2.5 KCMS programs 26 July 1996 - ----------------------------------------------------------------------------- AUSCERT have received a report of a vulnerability in the Sun Microsystems Solaris 2.5 distribution involving the programs kcms_calibrate and kcms_configure. These programs are part of the Kodak Color Management System (KCMS) packages. This vulnerability may allow any local user to gain root privileges. Exploit details involving this vulnerability have been made publicly available. At this stage, AUSCERT is not aware of any official patches. AUSCERT recommends that sites take the actions suggested in Section 3 until official patches are available. Depending on the local sites' requirements, the Solaris 2.5 KCMS packages may or may not have been installed. AUSCERT recommends that individual sites should determine whether the programs are installed and take appropriate action. This Alert will be updated as more information becomes available. - ----------------------------------------------------------------------------- 1. Description Solaris 2.5 contains support for the Kodak Color Management System (KCMS), a set of Openwindows compliant API's and libraries to create and manage profiles that can describe and control the colour performance of monitors, scanners, printers and film recorders. KCMS includes the programs kcms_configure and kcms_calibrate which are used for the configuration and calibration of an X11 window system for use with the KCMS library. When installed, these programs have set-user-id root and set-group-id bin privileges. A vulnerability involving these programs has been reported. Exploit details involving this vulnerability have been made publicly available. Depending on the local sites' requirements, the Solaris 2.5 KCMS packages may or may not have been installed. 2. Impact A local user may be able to create and then write to arbitrary files on the system. This can be leveraged to gain root privileges. 3. Workarounds/Solution Currently, there are no official patches available. When patches are made available it is suggested the sites install the official patches. Until official patches are available sites are encouraged to remove the setuid and setgid permissions on the kcms_calibrate and kcms_configure programs. These are typically located in /usr/openwin/bin. # chmod 400 /usr/openwin/bin/kcms_calibrate # chmod 400 /usr/openwin/bin/kcms_configure Note that this will remove the ability for users to run these programs. - ----------------------------------------------------------------------------- AUSCERT wishes to thanks Marek Krawus of the University of Queensland for his assistance in this matter. - ----------------------------------------------------------------------------- The AUSCERT team have made every effort to ensure that the information contained in this document is accurate. However, the decision to use the information described is the responsibility of each user or organisation. The appropriateness of this document for an organisation or individual system should be considered before application in conjunction with local policies and procedures. AUSCERT takes no responsibility for the consequences of applying the contents of this document. If you believe that your system has been compromised, contact AUSCERT or your representative in FIRST (Forum of Incident Response and Security Teams). AUSCERT is located at The University of Queensland within the Prentice Centre. AUSCERT is a full member of the Forum of Incident Response and Security Teams (FIRST). AUSCERT maintains an anonymous FTP service which is found on: ftp://ftp.auscert.org.au/pub/. This archive contains past SERT and AUSCERT Advisories, and other computer security information. AUSCERT also maintains a World Wide Web service which is found on: http://www.auscert.org.au/. Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 4477 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 emergencies. Postal: Australian Computer Emergency Response Team c/- Prentice Centre The University of Queensland Brisbane Qld. 4072. AUSTRALIA *********************** FORWARDED INFORMATION ENDS HERE *********************** =============================================================================== IBM's Internet Emergency Response Service (IBM-ERS) is a subscription-based Internet security response service that includes computer security incident response and management, regular electronic verification of your Internet gateway(s), and security vulnerability alerts similar to this one that are tailored to your specific computing environment. By acting as an extension of your own internal security staff, IBM-ERS's team of Internet security experts helps you quickly detect and respond to attacks and exposures across your Internet connection(s). As a part of IBM's Business Recovery Services organization, the IBM Internet Emergency Response Service is a component of IBM's SecureWay(tm) line of security products and services. From hardware to software to consulting, SecureWay solutions can give you the assurance and expertise you need to protect your valuable business resources. To find out more about the IBM Internet Emergency Response Service, send an electronic mail message to ers-sales@vnet.ibm.com, or call 1-800-742-2493 (Prompt 4). IBM-ERS maintains a site on the World Wide Web at http://www.ers.ibm.com/. Visit the site for information about the service, copies of security alerts, team contact information, and other items. IBM-ERS uses Pretty Good Privacy* (PGP*) as the digital signature mechanism for security vulnerability alerts and other distributed information. The IBM-ERS PGP* public key is available from http://www.ers.ibm.com/team-info/pgpkey.html. "Pretty Good Privacy" and "PGP" are trademarks of Philip Zimmerman. IBM-ERS is a Member Team of the Forum of Incident Response and Security Teams (FIRST), a global organization established to foster cooperation and response coordination among computer security teams worldwide. The information in this document is provided as a service to customers of the IBM Emergency Response Service. Neither International Business Machines Corporation, Integrated Systems Solutions Corporation, 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 contained herein, or represents that its use would not infringe any 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 IBM or its subsidiaries. The views and opinions of authors expressed herein do not necessarily state or reflect those of IBM or its subsidiaries, and may not be used for advertising or product endorsement purposes. - ---EXTERNAL RELEASE---EXTERNAL RELEASE---EXTERNAL RELEASE---EXTERNAL RELEASE--- -----BEGIN PGP SIGNATURE----- Version: 2.7.1 iQCVAwUBMfi1I/WDLGpfj4rlAQHoRwQA1ebSScT3c6qDZjvlGbK0s6lat8fJu+x6 30dNAiuixxNar3HBSA4g+nyF7BG9NTEF2fXxZMuH92RMZ4Ex9yLPVGSsOxehyRVj +8BpxgaNWpd6/EodvvQyFjISiHxk9PtgOXcV7TRI0cUFGPbw9ynTWQ6vUxlQ6Ztn xfK+YkQU1eg= =C+7E -----END PGP SIGNATURE-----