GitHub Advisoryadvisory · Maven

GHSA-vjqw-r3ww-wj2w Expression Language Injection in Apache Syncope

CRITICAL Published 2021-06-16 Modified 2021-07-29 Official page ↗
Aliases
CVE-2020-1959
Ecosystem
Maven
Packages
org.apache.syncope:syncope-core
Severity
Critical
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-917
Reviewed
2021-05-25

Affected packages

• Maven org.apache.syncope:syncope-core: < 2.1.6 → fixed in 2.1.6

Description

A Server-Side Template Injection was identified in Apache Syncope prior to 2.1.6 enabling attackers to inject arbitrary Java EL expressions, leading to an unauthenticated Remote Code Execution (RCE) vulnerability. Apache Syncope uses Java Bean Validation (JSR 380) custom constraint validators. When building custom constraint violation error messages, they support different types of interpolation, including Java EL expressions. Therefore, if an attacker can inject arbitrary data in the error message template being passed, they will be able to run arbitrary Java code.

Related

Alias · CVE (1)

  • CVE-2020-1959 A Server-Side Template Injection was identified in Apache Syncope prior to 2.1.6 enabling attackers to inject arbitrary Java EL… vulnerability

Weakness · CWE (1)

  • CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement weakness

References