The RichFaces Framework 3.X through 3.3.4 is vulnerable to Expression Language (EL) injection via the UserResource resource. A remote, unauthenticated attacker could exploit this to execute arbitrary code using a chain of java serialized objects via org.ajax4jsf.resource.UserResource$UriData
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packetstormsecurity.com/files/156663/Richsploit-RichFaces-Exploitation-Toolkit.html
seclists.org/fulldisclosure/2020/Mar/21
access.redhat.com/errata/RHSA-2018:3517
access.redhat.com/errata/RHSA-2018:3518
access.redhat.com/errata/RHSA-2018:3519
access.redhat.com/errata/RHSA-2018:3581
bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14667
github.com/richfaces/richfaces/commit/1372eb716c1a215a5af124198f21bde33fafad06
nvd.nist.gov/vuln/detail/CVE-2018-14667