CVE-2020-1959
9.8 · CRITICALOverview
CVE-2020-1959 is a critical-severity vulnerability affecting apache syncope. It was published on May 4, 2020 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from apache. Update syncope to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| apache | syncope | >= 2.1.0, < 2.1.6 | Affected |
Frequently Asked Questions
What is CVE-2020-1959?
CVE-2020-1959 is a critical-severity vulnerability affecting apache syncope. It was published on May 4, 2020 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2020-1959?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2020-1959?
Check the references section for vendor advisories and patches from apache. Update syncope to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-1959?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-1959 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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