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-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2001.082 -- HP Support Information Digests HPSBUX0102-141 Sec. Vulnerability in JRE 27 February 2001 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Java Runtime Environment Vendor: Hewlett-Packard Operating System: HP-UX 10.20 HP-UX 10.24 HP-UX 11.00 HP-UX 11.04 HP-UX 11.11 Platform: HP9000 Series 700 HP9000 Series 800 Impact: Execute Arbitrary Code/Commands Access Required: Remote Ref: ESB-2001.081 - --------------------------BEGIN INCLUDED TEXT-------------------- - ------------------------------------------------------------------------------- Document ID: HPSBUX0102-141 Date Loaded: 20010221 Title: Sec. Vulnerability in JRE - ---------------------------------------------------------------------------- HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #0141, 21 Feb. '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: Sun Microsystems discovered a potential security issue in the Java Runtime Environment. The issue poses a possible security risk by allowing malicious Java code to execute unauthorized commands under certain circumstances. PLATFORM: HP9000 Series 700/800 running HP-UX releases 10.20, 10.24, 11.00, 11.04, and 11.11 only. This security bulletin applies to Java on HP-UX, and does not cover software shipped on Linux, nor on Windows/NT. POSSIBLE RESULT: Improper permission may be granted in some cases. SOLUTION: Install the latest Java releases as described below. AVAILABILITY: The fixed releases are available immediately. - ---------------------------------------------------------------------------- I. A. Background A vulnerability in certain versions of the Java(TM) Runtime Environment may allow malicious Java code to execute unauthorized commands. Since no permission is granted by default, the circumstances necessary to exploit this vulnerability are relatively rare. On the Java Development Kit 1.1.x (JDKTM 1.1.x) (browsers included), an applet must be signed to have execute permission (signed applets may execute anything in JDK 1.1.x.). There are no known attacks reported based on this vulnerability to the best of Sun's knowledge. B. Fixing the problem Obtain and install the latest releases of the Java products listed in section C. below. For JDK/JRE 1.1, 1.2.2 and 1.3 based releases go to www.hp.com/go/java. Section C. 1.) below will guide you in determining your installed Java version on HP-UX. C. Recommended solution JDK and JRE 1.1.8.05 or higher for HP-UX 10.20, 10.24 and 11.XX. JDK and JRE 1.2.2.07 or higher for HP-UX 11.XX. JDK and JRE 1.3.0.00 or higher for HP-UX 11.XX. - ------------------------------------------------------------------------- 1.) HP-UX: Determining Java version information for JDK, JRE - ------------------------------------------------------------------------- There are two mechanisms to determine which versions of the Java JDK/SDK (developer kit), JRE (runtime), or JPI (Java Plugin for Netscape) you have installed. First, you can use the following command to list the bundle revisions for any installed Java products: /usr/sbin/swlist -l bundle | grep -i java Second, you can ask Java to identify itself by executing the following: <path>/bin/java -version where path is typically /opt/java - for Java 1.1 /opt/java1.2 - for Java 1.2 /opt/java1.3 - for Java 1.3 or is any alternate location where the JDK or JRE may have been installed. - ------------------------------------------------------------------------- 2.) HP-UX: Determining Java version information for JPI - ------------------------------------------------------------------------- The plugin (JPI) is installed in user's home directories, so you will need to check its version using the following. For Java 1.2: $HOME/.netscape/java/bin/java -version For Java 1.1, you must use: what $HOME/.netscape/java/bin/PA_RISC/green_threads/jre NOTE: Do not rely on Netscape's Help/About_Plug-ins menu to find the version number of the Plugin, because in some cases the version number is incorrect. a.) Unplugging the Plugin (Since the Plugin is manually installed into Netscape, it must be manually removed as well.) b.) If you have a plugin that you wish to remove because it has a security issue, in addition to doing a swremove of the product you must also do the following for Java 1.1 and Java 1.2: rm -f $HOME/.netscape/plugins/javaplugin.sl rm -rf $HOME/.netscape/java - -------------------------------------------------------------------------- D. 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 Under the Maintenance and Support Menu (Electronic Support Center): click on the "more..." link. Then - Use the 'Login' tab at the left side of the screen to login using your ID and password. Check with your system administrator to see if you have an existing login or use the "Register" button at the left to create a login. You will need to login in order to gain access to many areas of the ITRC. Remember to save the User ID assigned to you, and your password. Under the Maintenance and Support Menu, click on the "more..." link. 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. To -gain access- to the Security Patch Matrix, select the link for "The Security Bulletins 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" On the "Support Information Digest Main" page: click on the "HP Security Bulletin Archive". E. 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 Bulletin 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: HPSBUX0102-141-------------------------------------- - --------------------------END INCLUDED TEXT-------------------- This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to use any or all of this information is the responsibility of each user or organisation, and should be done so in accordance with site policies and procedures. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the original authors to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/Information/advisories.html If you believe that your system has been compromised, contact AusCERT or your representative in FIRST (Forum of Incident Response and Security Teams). 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 emergencies. -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key iQCVAwUBOpvQsSh9+71yA2DNAQFgUgP9EXrQJ2uIpa/SpSbYR4ezVY210YORZPpB tJ/YgBGaJ647mXDgtjS4Q6aC+VwSAqDBtdpCJzA4Uka1cuT7mr3EEz7rcw9a2PJj BdtY02+2Eo+5K4VNcSbB00NnjqhhGW5XuueqUgE1Y2+x6i8bdNJZs2IOoJrcHjZE upDx6w8Fh2g= =wpa+ -----END PGP SIGNATURE-----