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)

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.023 (82.4th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2022-23463: held from 0.019 to 0.023.

EPSS over last 30 days · oldest: 0.019 · newest: 0.023 · change: +0.003

Affected products

Weakness classification (CWE)

References

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.