CVE-2022-23463: Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')

September 24, 2022 (updated September 28, 2022)

Nepxion Discovery is a solution for Spring Cloud. Discover is vulnerable to SpEL Injection in discovery-commons. DiscoveryExpressionResolver’s eval method is evaluating expression with a StandardEvaluationContext, allowing the expression to reach and interact with Java classes such as java.lang.Runtime, leading to Remote Code Execution. There is no patch available for this issue at time of publication. There are no known workarounds.

References

nvd.nist.gov/vuln/detail/CVE-2022-23463
securitylab.github.com/advisories/GHSL-2022-033_GHSL-2022-034_Discovery/

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