Vulnerabilities > CVE-2016-3226 - Improper Access Control vulnerability in Microsoft Windows Server 2008 and Windows Server 2012
Attack vector
NETWORK Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
Active Directory in Microsoft Windows Server 2008 R2 SP1 and Server 2012 Gold and R2 allows remote authenticated users to cause a denial of service (service hang) by creating many machine accounts, aka "Active Directory Denial of Service Vulnerability."
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 5 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Embedding Scripts within Scripts An attack of this type exploits a programs' vulnerabilities that are brought on by allowing remote hosts to execute scripts. The attacker leverages this capability to execute scripts to execute his/her own script by embedding it within other scripts that the target software is likely to execute. The attacker must have the ability to inject script into script that is likely to be executed. If this is done, then the attacker can potentially launch a variety of probes and attacks against the web server's local environment, in many cases the so-called DMZ, back end resources the web server can communicate with, and other hosts. With the proliferation of intermediaries, such as Web App Firewalls, network devices, and even printers having JVMs and Web servers, there are many locales where an attacker can inject malicious scripts. Since this attack pattern defines scripts within scripts, there are likely privileges to execute said attack on the host. Of course, these attacks are not solely limited to the server side, client side scripts like Ajax and client side JavaScript can contain malicious scripts as well. In general all that is required is for there to be sufficient privileges to execute a script, but not protected against writing.
- Signature Spoofing by Key Theft An attacker obtains an authoritative or reputable signer's private signature key by theft and then uses this key to forge signatures from the original signer to mislead a victim into performing actions that benefit the attacker.
Msbulletin
| bulletin_id | MS16-081 |
| bulletin_url | |
| date | 2016-06-14T00:00:00 |
| impact | Denial of Service |
| knowledgebase_id | 3160352 |
| knowledgebase_url | |
| severity | Important |
| title | Security Update for Active Directory |
Nessus
| NASL family | Windows : Microsoft Bulletins |
| NASL id | SMB_NT_MS16-081.NASL |
| description | The remote Windows host is missing a security update. It is, therefore, affected by a denial of service vulnerability in Active Directory. An authenticated, remote attacker can exploit this, via the creation of multiple machine accounts, to cause the Active Directory service to stop responding. Note that an attacker must have access to an account that has privileges to join machines to the domain in order to exploit this vulnerability. |
| last seen | 2020-06-01 |
| modified | 2020-06-02 |
| plugin id | 91608 |
| published | 2016-06-14 |
| reporter | This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. |
| source | https://www.tenable.com/plugins/nessus/91608 |
| title | MS16-081: Security Update for Active Directory (3160352) |
| code | |