#VU4234 Arbitrary code execution in Oracle Java SE - CVE-2012-0507

Vulnerability identifier: #VU4234

Vulnerability risk: Critical

CVSSv4.0: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: CVE-2012-0507

CWE-ID: CWE-399

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Oracle Java SE
Universal components / Libraries / Software for developers

Vendor: Oracle

Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to an error in the AtomicReferenceArray class implementation. A remote attacker can create a specially crafted Web site, trick the victim into visiting it, bypass Java sandbox restrictions and execute arbitrary code with privileges of the current user or cause Java Virtual Machine to crash.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Note: the vulnerability was being actively exploited.

Mitigation
Install update from vendor's website.
http://www.oracle.com/technetwork/topics/security/cpujan2012-366304.html

Vulnerable software versions

Oracle Java SE: 5 Update 33, 6u30, 7u2

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External links
https://www.oracle.com/technetwork/topics/security/javacpufeb2012-366318.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.