PT-2015-4362 · Facebook · Hhvm

Bawolff · Published 2015-04-13 · Updated 2016-06-24 · CVE-2014-9714

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

Name of the Vulnerable Software and Affected Versions HHVM versions prior to 3.5.0

Description A cross-site scripting issue exists due to a flaw in the WddxPacket::recursiveAddVar function. This allows remote attackers to inject arbitrary web script or HTML via a crafted string to the wddx serialize value function.

Recommendations For versions prior to 3.5.0, update to version 3.5.0 or later to resolve the issue. As a temporary workaround, consider restricting input to the wddx serialize value function to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2014-9714

Affected Products

Hhvm

References · 8

• 🔥 https://phabricator.wikimedia.org/T85851 · Exploit
• https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-March/000175.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2014-9714 · Security Note
• https://github.com/facebook/hhvm/issues/4283 · Note
• https://github.com/facebook/hhvm/commit/324701c9fd31beb4f070f1b7ef78b115fbdfec34 · Note
• http://openwall.com/lists/oss-security/2015/04/07/3 · Note
• http://openwall.com/lists/oss-security/2015/04/01/1 · Note
• http://securityfocus.com/bid/74061 · Note