CVE-2014-3599
Description
It was discovered that HornetQ REST did not set the resteasy.document.expand.entity.references context parameter to false by default. A HornetQ REST application, which does not explicitly set the required context parameter to false, may be vulnerable to XML External Entity (XXE) attacks. A remote attacker able to send XML requests to a HornetQ REST endpoint could use this flaw to read files accessible to the user running the application server, and potentially perform other more advanced XXE attacks.
Statement
Not Vulnerable. HornetQ REST is not provided by any Red Hat product.
Mitigation
When using HornetQ REST in an application, add the following snippet to its web.xml file to disable entity expansion in RESTEasy as used by HornetQ REST endpoints:
<context-param>
<param-name>resteasy.document.expand.entity.references</param-name>
<param-value>false</param-value>
</context-param>
Note that this <context-param> setting has precedence over <init-param>, and will override a contrary setting in an <init-param> element.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v2 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 4.3 | 4.3 | N/A |
| Attack Vector | Network | Network | N/A |
| Access Complexity | Medium | Medium | N/A |
| Authentication | None | None | N/A |
| Confidentiality Impact | Partial | Partial | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | None | None | N/A |
Vector
Red Hat: AV:N/AC:M/Au:N/C:P/I:N/A:N
NVD: AV:N/AC:M/Au:N/C:P/I:N/A:N
Acknowledgements
Red Hat would like to thank Georgi Geshev (MWR Labs) for reporting this issue.
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