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[ GLSA 200411-38 ] Sun and Blackdown Java: Applet privilege escalation
From: Sune Kloppenborg Jeppesen <jaervosz () gentoo org>
Date: Mon, 29 Nov 2004 22:35:13 +0100
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200411-38 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Sun and Blackdown Java: Applet privilege escalation Date: November 29, 2004 Bugs: #72172, #72221 ID: 200411-38 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== The Java plug-in security in Sun and Blackdown Java environments can be bypassed to access arbitrary packages, allowing untrusted Java applets to perform unrestricted actions on the host system. Background ========== Sun and Blackdown both provide implementations of Java Development Kits (JDK) and Java Runtime Environments (JRE). All these implementations provide a Java plug-in that can be used to execute Java applets in a restricted environment for web browsers. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-java/sun-jdk < 1.4.2.06 >= 1.4.2.06 2 dev-java/sun-jre-bin < 1.4.2.06 >= 1.4.2.06 3 dev-java/blackdown-jdk < 1.4.2.01 >= 1.4.2.01 4 dev-java/blackdown-jre < 1.4.2.01 >= 1.4.2.01 ------------------------------------------------------------------- # Package 1 [dev-java/sun-jdk] only applies to x86 and AMD64 users. # Package 2 [dev-java/sun-jre-bin] only applies to x86 and AMD64 users. # Package 3 [dev-java/blackdown-jdk] only applies to x86 and AMD64 users. # Package 4 [dev-java/blackdown-jre] only applies to x86 and AMD64 users. ------------------------------------------------------------------- 4 affected packages; please see the notes above... ------------------------------------------------------------------- Description =========== All Java plug-ins are subject to a vulnerability allowing unrestricted Java package access. Impact ====== A remote attacker could embed a malicious Java applet in a web page and entice a victim to view it. This applet can then bypass security restrictions and execute any command or access any file with the rights of the user running the web browser. Workaround ========== As a workaround you could disable Java applets on your web browser. Resolution ========== All Sun JDK users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-java/sun-jdk-1.4.2.06" All Sun JRE users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-java/sun-jre-bin-1.4.2.06" All Blackdown JDK users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-java/blackdown-jdk-1.4.2.01" All Blackdown JRE users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-java/blackdown-jre-1.4.2.01" Note: You should unmerge all vulnerable versions to be fully protected. References ========== [ 1 ] iDEFENSE Security Advisory 11.22.04 http://www.idefense.com/application/poi/display?id=158&type=vulnerabilities [ 2 ] CAN-2004-1029 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1029 [ 3 ] Blackdown Security Advisory 2004-01 http://www.blackdown.org/java-linux/java2-status/security/Blackdown-SA-2004-01.txt Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200411-38.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security () gentoo org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2004 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.0
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- [ GLSA 200411-38 ] Sun and Blackdown Java: Applet privilege escalation Sune Kloppenborg Jeppesen (Nov 29)