RCE in Eclipse Jakarta Expression Language
CVE-2021-28170
In the Jakarta Expression Language implementation 3.0.3 and earlier, a bug in the ELParserTokenManager enables invalid EL expressions to be evaluated as if they were valid.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.021 (81.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
- Eclipse Jakarta Expression Language
- Oracle Communications Cloud Native Core Policy — versions 1.14.0
- Oracle Weblogic Server — versions 14.1.1.0.0
- Quarkus
- The Eclipse Foundation Jakarta Expression Language Implementation — versions unspecified, next of 3.0.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/eclipse-ee4j/el-ri/issues/155 (Exploit, Third Party Advisory, Issue Tracking)
- securitylab.github.com/advisories/GHSL-2020-021-jakarta-el/ (Exploit, Third Party Advisory)
- www.oracle.com/security-alerts/cpuapr2022.html (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-28170?
- CVE-2021-28170 is a medium-severity vulnerability in Eclipse Jakarta Expression Language, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2021-05-26.
- How severe is CVE-2021-28170?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-28170 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.