CVE intelligence and bounded remediation
CVE-2018-14667 — Red Hat JBoss RichFaces Framework Expression Language Injection Vulnerability
Critical
CVSS 9.8
CISA KEV
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.
- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Published
- 2018-11-06
- CISA KEV
- Known exploited
- Ecosystem
- java/maven
- Weaknesses
- CWE-94
Affected products
- redhat / richfaces
- redhat / enterprise_linux / 5.0
- redhat / enterprise_linux / 6.0
Matched remediation archetype
Command, code, expression, and template injection
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Check exposure
- Trace untrusted values to process execution, interpreters, evaluators, template engines, dynamic imports, and administrative scripting features.
- Determine whether the affected path is reachable across each trust boundary and which service account or host privilege it inherits.
- Review configuration for optional execution features, unsafe compatibility modes, and shell invocation.
Remediate safely
- Replace string-built commands or evaluated code with fixed operations and structured argument APIs that do not invoke a shell.
- Use strict allowlists for operation identifiers and reject unexpected input before it reaches any interpreter.
- Update the affected component and add inert regression tests covering metacharacters, encoding variants, and alternate request paths.
Authoritative sources
Complete CVE record and remediation plan
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