What is CVE-2022-23463?

CVE-2022-23463 is a critical-severity vulnerability in Nepxion Discover, classified under Improper Neutralization of Special Elements used in an Expression Language Statement (Expression Language Injection). CVSS score: 9.4/10. Published 2022-09-24.

How severe is CVE-2022-23463?

Critical severity. CVSS v3 base score is 9.4 out of 10.

RCE in Nepxion Discover

CVE-2022-23463

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.

Vulnerability class: Log4Shell (CVE-2021-44228)

EPSS: 0.019 (77.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L.

Affected products

Nepxion Discover — versions 6.16.2
Nepxion Discovery

Weakness classification (CWE)

CWE-917 — Improper Neutralization of Special Elements used in an Expression Language Statement (Expression Language Injection)

References

security-advisories@github.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2022-23463?: CVE-2022-23463 is a critical-severity vulnerability in Nepxion Discover, classified under Improper Neutralization of Special Elements used in an Expression Language Statement (Expression Language Injection). CVSS score: 9.4/10. Published 2022-09-24.
How severe is CVE-2022-23463?: Critical severity. CVSS v3 base score is 9.4 out of 10.