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Vulnerability Alert

Oracle Java Applet JMX Remote Code Execution Vulnerability

 
Threat Type:CWE-264: Permissions, Privileges, and Access Control
IntelliShield ID:28381
Version:2
First Published:2013 February 25 20:47 GMT
Last Published:2013 March 14 20:24 GMT
Port: Not available
CVE:CVE-2013-0431
BugTraq ID:57726
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Moderate Damage
CVSS Base:5.0 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:4.1
Related Resources:
View related IPS Signature
 
 
Version Summary:Red Hat has released a security advisory and software updates that address the Oracle java applet jmx remote code execution vulnerability.
 
 
Description
Oracle Java contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code.

The vulnerability is due to improper security protections imposed by the affected software. An unauthenticated, remote attacker could exploit this vulnerability by convincing a user to follow a link that directs the user to a malicious site while using misleading language or instructions to persuade the user to follow the provided link. If successful, the attacker could execute arbitrary code on the system with the privileges of the user.

Functional code that exploits the vulnerability is publicly available and is being actively exploited in the wild.

Oracle has confirmed this vulnerability and software updates are available.
 
Warning Indicators
Oracle Java version 7 updates 11 and prior are vulnerable.
 
IntelliShield Analysis
To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link.

Functional code that exploits the vulnerability is publicly available and being actively exploited in the wild.
 
Vendor Announcements
Oracle has released a security advisory at the following link: Oracle Java SE Critical Patch Update Advisory - February 2013

Red Hat has released a CVE statement and security advisory for bug ID 906447 at the following links: CVE-2013-0431 and RHSA-2013:0626
 
Impact
An unauthenticated, remote attacker could exploit this vulnerability to execute arbitrary code on a targeted system with the privileges of the user. If the user holds elevated privileges, the attacker could completely compromise the system.
 
Technical Information
The vulnerability is due to insecure use of the invoke method of the java.lang.reflect.Method class in the Java Runtime Environment (JRE). As a result, an untrusted Java applet can be used to bypass the sandbox environment, which may allow remote code execution.

An unauthenticated, remote attacker could exploit this vulnerability by convincing a user to view a website that contains a malicious Java applet. When viewed, the applet could take actions in the user's browser outside the security protections of the JRE sandbox. As a result, the attacker could execute arbitrary code on the system with the privileges of the user.
 
Safeguards
Administrators are advised to apply the appropriate updates.

Users are advised not to open e-mail messages from suspicious or unrecognized sources. If users cannot verify that links or attachments included in e-mail messages are safe, they are advised not to open them.

Administrators are advised to monitor affected systems.

 
Patches/Software
Oracle has released updated software at the following link: Red Hat has released updated software for registered subscribers at the following link: Red Hat Network. Red Hat packages can be updated on Red Hat Enterprise Linux versions 5 and later using the yum tool. Red Hat Enterprise Linux versions 4 and earlier can be updated using the up2date tool.
 
Alert History
 
Version 1, February 25, 2013, 3:47 PM: Oracle Java contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code. Updates are available.


Product Sets
 
The security vulnerability applies to the following combinations of products.

Primary Products:
Sun Microsystems, Inc.Java Runtime Environment (JRE) 7.0 Base, Update 1, Update 2, Update 3, Update 4, Update 5, Update 6, Update 7, Update 8, Update 9, Update 10, Update 11

Associated Products:
Red Hat, Inc.Red Hat Enterprise Linux Desktop Supplementary 5.0 IA-32, x86-64 | 6 IA-32, x86_64
Red Hat, Inc.Red Hat Enterprise Linux HPC Node Supplementary 6 x86_64
Red Hat, Inc.Red Hat Enterprise Linux Server Supplementary 6 IA-32, PPC, PPC 64, s390, s390x, x86_64
Red Hat, Inc.Red Hat Enterprise Linux Server Supplementary EUS 6.0.z IA-32, x86_64 | 6.1.z IA-32, ppc, ppc64, s390, s390x, x86_64 | 6.2.z IA-32, x86_64, PPC, PPC64, S390x, S390 | 6.4.z IA-32, ppc, ppc64, s390, s390x, x86_64
Red Hat, Inc.Red Hat Enterprise Linux Workstation Supplementary 6 IA-32, x86_64
Red Hat, Inc.RHEL Supplementary 5 IA-32, IA-64, PPC, PPC64, S390, S390x, x86_64




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