CVE-2017-5643.txt.asc

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CVE-2017-5643: Apache Camel's Validation Component is vulnerable against SSRF via remote DTDs and XXE.

Severity: MEDIUM

Vendor: The Apache Software Foundation

Versions Affected: Camel 2.17.0 to 2.17.5, Camel 2.18.0 to 2.18.2
The unsupported Camel 2.x (2.16 and earlier) versions may be also affected.

Description: The Validation Component of Apache Camel evaluates DTD headers of XML stream sources, although a validation against XML schemas (XSD) is executed. Remote attackers can use this feature to make Server-Side Request Forgery (SSRF) attacks by sending XML documents with remote DTDs URLs or XML External Entities (XXE).  The vulnerability is not given for SAX or StAX sources.

Mitigation: 2.17.x users should upgrade to 2.17.6, 2.18.x users should upgrade to 2.18.3. 

The JIRA tickets https://issues.apache.org/jira/browse/CAMEL-10894 refers to the various commits that resolved the issue, and have more details.

Credit: This issue was discovered by Franz Forsthofer
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