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Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection') in com.sun.el:el-ri

CVE-2021-28170

  • com.sun.el:el-ri
  • org.glassfish:jakarta.el
  • org.glassfish:javax.el
  • org.glassfish:javax.el-impl
  • org.glassfish.web:el-impl
  • org.glassfish.web:javax.el
Medium
5.3/10

Summary

In the Jakarta Expression Language implementation prior to 3.0.3.redhat-00006 and 4.0.x prior to 4.0.2, a bug in the "ELParserTokenManager" enables invalid EL expressions to be evaluated as if they were valid.

  • LOW
  • NETWORK
  • LOW
  • UNCHANGED
  • NONE
  • NONE
  • NONE
  • NONE

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

The software constructs all or part of an expression language (EL) statement in a framework such as a Java Server Page (JSP) using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended EL statement before it is executed.

References

Advisory Timeline

  • Published