Vulnerability Description
HHVM does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect CGI applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect a CGI application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an "httpoxy" issue. This issue affects HHVM versions prior to 3.9.6, all versions between 3.10.0 and 3.12.4 (inclusive), and all versions between 3.13.0 and 3.14.2 (inclusive).
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Hhvm | < 3.9.6 |
Related Weaknesses (CWE)
References
- https://github.com/facebook/hhvm/commit/423b4b719afd5ef4e6e19d8447fbf7b6bc0d0a25PatchThird Party Advisory
- https://httpoxy.org/ExploitMitigationThird Party Advisory
- https://www.facebook.com/security/advisories/cve-2016-1000109Third Party Advisory
- https://github.com/facebook/hhvm/commit/423b4b719afd5ef4e6e19d8447fbf7b6bc0d0a25PatchThird Party Advisory
- https://httpoxy.org/ExploitMitigationThird Party Advisory
- https://www.facebook.com/security/advisories/cve-2016-1000109Third Party Advisory
FAQ
What is CVE-2016-1000109?
CVE-2016-1000109 is a vulnerability with a CVSS score of 5.3 (MEDIUM). HHVM does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect CGI applications from the presence of untrusted client data in the HTTP_PROXY environment va...
How severe is CVE-2016-1000109?
CVE-2016-1000109 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-1000109?
Check the references section above for vendor advisories and patch information. Affected products include: Facebook Hhvm.