Apache Camel Security Advisory - CVE-2017-5643

Apache Camel security advisory: CVE-2017-5643

Severity

MEDIUM

Summary

Apache Camel's Validation Component is vulnerable against SSRF via remote DTDs and XXE

Versions affected

2.17.0 up to 2.17.5, 2.18.0 up to 2.18.2

Versions fixed

2.17.6, 2.18.3 and newer

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.

Notes

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

Mitigation

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

Credit

This issue was discovered by Franz Forsthofer

References

PGP signed advisory data: CVE-2017-5643.txt.asc
Mitre CVE Entry: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5643