What is CVE-2020-1959?

CVE-2020-1959 is a Server-Side Template Injection vulnerability identified in Apache Syncope prior to version 2.1.6. It allows attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE).

How severe is CVE-2020-1959?

CVE-2020-1959 has a severity rating of critical with a CVSS score of 9.8 out of 10.

What software is affected by CVE-2020-1959?

Apache Syncope versions prior to 2.1.6 are affected by CVE-2020-1959.

How can I fix CVE-2020-1959?

To fix CVE-2020-1959, it is recommended to update Apache Syncope to version 2.1.6 or higher.

Where can I find more information about CVE-2020-1959?

More information about CVE-2020-1959 can be found on the Apache Syncope website at http://syncope.apache.org/security.

Vulnerability/
CVE-2020-1959

critical

9.8

CWE

917

4/5/2020

4/8/2024

CVE-2020-1959

First published: Mon May 04 2020(Updated: )

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.

Credit: security@apache.org

Affected Software	Affected Version	How to fix
Apache Syncope	>=2.1.0<2.1.6

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Reference Links

http://syncope.apache.org/security

Frequently Asked Questions

What is CVE-2020-1959?
CVE-2020-1959 is a Server-Side Template Injection vulnerability identified in Apache Syncope prior to version 2.1.6. It allows attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE).
How severe is CVE-2020-1959?
CVE-2020-1959 has a severity rating of critical with a CVSS score of 9.8 out of 10.
What software is affected by CVE-2020-1959?
Apache Syncope versions prior to 2.1.6 are affected by CVE-2020-1959.
How can I fix CVE-2020-1959?
To fix CVE-2020-1959, it is recommended to update Apache Syncope to version 2.1.6 or higher.
Where can I find more information about CVE-2020-1959?
More information about CVE-2020-1959 can be found on the Apache Syncope website at http://syncope.apache.org/security.

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vendor/apache
canonical/apache syncope
version/apache syncope/2.1.0

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