CVE-2020-10683
CRITICAL severity · CVSS 9.8 · XML external entity (XXE)
9.8CVSS CRITICAL
Summary
dom4j before 2.0.3 and 2.1.x before 2.1.3 allows external DTDs and External Entities by default, which might enable XXE attacks. However, there is popular external documentation from OWASP showing how to enable the safe, non-default behavior in any application that uses dom4j.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)7%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (3)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://bugzilla.redhat.com/show_bug.cgi?id=1694235 ↗
Additional information
- NVD record
- https://bugzilla.redhat.com/show_bug.cgi?id=1694235Patch
- https://github.com/dom4j/dom4j/commit/a8228522a99a02146106672a34c104adbda5c658Patch
- https://github.com/dom4j/dom4j/commits/version-2.0.3Patch
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00061.htmlAdvisory
- https://cheatsheetseries.owasp.org/cheatsheets/XML_External_Entity_Prevention_Cheat_Sheet.htmlAdvisory
- https://github.com/dom4j/dom4j/issues/87Advisory
- https://github.com/dom4j/dom4j/releases/tag/version-2.1.3Advisory
- https://lists.apache.org/thread.html/r51f3f9801058e47153c0ad9bc6209d57a592fc0e7aefd787760911b8%40%3Cdev.velocity.apache.org%3E