This security advisory describes one high risk vulnerability.
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to deserialization of untrusted data. A remote unauthenticated attacker can send a specially crafted UserResource RichFaces expression language that contains a tainted java serialized object org.ajax4jsf.resource.UserResource$UriData expression, trigger deserialization after clearing white list protections and execute arbitrary code with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.Mitigation
Install update from vendor's website.Vulnerable software versions
JBoss Richfaces: 3.1.0, 3.1.1, 3.1.2, 3.1.3, 3.1.4, 3.1.5, 3.1.6, 3.2.0, 3.2.1, 3.2.2, 3.3.0, 3.3.1, 3.3.2, 3.3.3, 3.3.4CPE
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?
No. We are not aware of malware exploiting this vulnerability.