CVE-2017-12621
9.8 · CRITICALOverview
CVE-2017-12621 is a critical-severity vulnerability affecting apache commons_jelly. It was published on September 28, 2017 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
During Jelly (xml) file parsing with Apache Xerces, if a custom doctype entity is declared with a "SYSTEM" entity with a URL and that entity is used in the body of the Jelly file, during parser instantiation the parser will attempt to connect to said URL. This could lead to XML External Entity (XXE) attacks in Apache Commons Jelly before 1.0.1.
Remediation
Check the references section for vendor advisories and patches from apache. Update commons_jelly 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 | commons_jelly | >= 0, < 1.0.1 | Affected |
References
Frequently Asked Questions
What is CVE-2017-12621?
CVE-2017-12621 is a critical-severity vulnerability affecting apache commons_jelly. It was published on September 28, 2017 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2017-12621?
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-2017-12621?
Check the references section for vendor advisories and patches from apache. Update commons_jelly 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-2017-12621?
CyberStrike's AI-powered security agents can automatically detect CVE-2017-12621 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.
How CyberStrike Helps
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