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CVE-2021-28170

Good to know:

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Date: May 26, 2021

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.

Language: Java

Severity Score

Related Resources (6)

https://security-tracker.debian.org/tracker/CVE-2021-28170
https://securitylab.github.com/advisories/GHSL-2020-021-jakarta-el/
https://www.oracle.com/security-alerts/cpuapr2022.html
https://nvd.nist.gov/vuln/detail/CVE-2021-28170
https://github.com/eclipse-ee4j/el-ri/issues/155
https://www.mend.io/vulnerability-database/CVE-2021-28170

Severity Score

Weakness Type (CWE)

Input Validation

CWE-20

Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')

CWE-917

Top Fix

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Upgrade Version

Upgrade to version org.glassfish:jakarta.el:3.0.4, com.sun.el:el-ri:3.0.4

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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