Drupal up to 6.32/7.30 XRDS Document DOCTYPE access control
|CVSS Meta Temp Score|
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|Current Exploit Price (≈)|
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|CTI Interest Score|
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A vulnerability has been found in Drupal up to 6.32/7.30 (Content Management System) and classified as problematic. Affected by this vulnerability is some unknown functionality of the component XRDS Document Handler. The manipulation of the argument
DOCTYPE with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect availability.
The weakness was shared 08/06/2014 by Willis Vandevanter and Nir Goldshlager as SA-CORE-2014-004 as confirmed advisory (Website). It is possible to read the advisory at drupal.org. The advisory contains:
In addition, a similar vulnerability exists in the core OpenID module (for sites that have this module enabled).This vulnerability is known as CVE-2014-5267 since 08/15/2014. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK. The advisory points out:
Drupal 6 and Drupal 7 include an XML-RPC endpoint which is publicly available (xmlrpc.php). The PHP XML parser used by this XML-RPC endpoint is vulnerable to an XML entity expansion attack and other related XML payload attacks which can cause CPU and memory exhaustion and the site's database to reach the maximum number of open connections. Any of these may lead to the site becoming unavailable or unresponsive (denial of service).
The vulnerability scanner Nessus provides a plugin with the ID 77100 (Debian DSA-2999-1 : drupal7 - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 122561 (Fedora Security Update for drupal7 (FEDORA-2014-9278)). The advisory illustrates:
All Drupal sites are vulnerable to this attack whether XML-RPC is used or not.
Upgrading to version 6.33 or 7.31 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at cgit.drupalcode.org. The best possible mitigation is suggested to be upgrading to the latest version.
CVSSv3VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6
VulDB Base Score: 5.3
VulDB Temp Score: 4.6
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ExploitingClass: Access control
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Nessus ID: 77100
Nessus Name: Debian DSA-2999-1 : drupal7 - security update
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OpenVAS ID: 867773
OpenVAS Name: Fedora Update for drupal6 FEDORA-2014-9281
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Upgrade: Drupal 6.33/7.31
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08/06/2014 +0 days 🔍
08/06/2014 +0 days 🔍
08/15/2014 +9 days 🔍
08/25/2014 +10 days 🔍
09/30/2014 +36 days 🔍
01/13/2015 +105 days 🔍
03/02/2022 +2605 days 🔍
Researcher: Willis Vandevanter/Nir Goldshlager
CVE: CVE-2014-5267 (🔍)
X-Force: 99846 - Drupal core XML-RPC denial of service, Medium Risk
Vulnerability Center: 45932 - Drupal <6.33, <7.31 and Wordpress <3.9.2 Remote DoS Vulnerability via Crafted XRDS Document, Medium
SecurityFocus: 69146 - Drupal XML-RPC Endpoint Multiple Denial of Service Vulnerabilities
See also: 🔍
EntryCreated: 01/13/2015 01:56 PM
Updated: 03/02/2022 02:36 AM
Changes: 01/13/2015 01:56 PM (77), 06/05/2017 10:07 AM (8), 03/02/2022 02:36 AM (3)
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