Zero-day vulnerability in Oracle Java SE

Error Handling
CVE-2011-3544

According to Trend Micro, this is a zero-day .The vulnerability was discovered by Michael Schierl.

Known malware:

Exploit:Java/CVE-2011-3544.

Vulnerability details

Advisory: SB2011091801 - Remote code execution in Oracle Java SE

Vulnerable component: Oracle Java SE

CVE-ID: CVE-2011-3544

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-388 - Error Handling

Description:

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

The weakness exists due to improper handling of Rhino Javascript errors. A remote attacker can create a specially crafted Web site, trick the victim into visiting it and execute arbitrary code with privileges of the current user via untrusted Java Web Start applications and untrusted Java applets.

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

Note: the vulnerability was being actively exploited.

Public Exploits:

- Java Applet Rhino Script Engine - Remote Code Execution (Metasploit) [Exploit-DB]

External links:

http://www.oracle.com/technetwork/topics/security/javacpuoct2011-443431.html
http://digcert.com/docs/symantec/symantec_report_2012.htm
http://blog.trendmicro.com/trendlabs-security-intelligence/2011-in-review-exploits-and-vulnerabiliti...
https://www.symantec.com/security_response/attacksignatures/detail.jsp?asid=24700
http://repairinfectedpc.com/Exploit-Java-CVE-2011-3544-Removal/
https://krebsonsecurity.com/2011/12/amnesty-international-site-serving-java-exploit/#more-13070
https://krebsonsecurity.com/2011/11/public-java-exploit-amps-up-threat-level/#more-12679
https://www.cnet.com/forums/discussions/exploit-java-cve-2011-3544-583664/

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.