Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Vulnerabilities / Threats

9/21/2020
10:55 AM
50%
50%

Patch by Tonight: CISA Issues Emergency Directive for Critical Netlogon Flaw

The directive requires all federal agencies to apply a patch for Windows Netlogon vulnerability CVE-2020-1472 by midnight on Sept. 21.

The US Department of Homeland Security's Cybersecurity and Infrastructure Security Agency (CISA) has published an emergency directive requiring federal agencies to mitigate a critical vulnerability in the Microsoft Windows Netlogon Remote Protocol (MS-NRPC), a core authentication component of Active Directory.

Related Content:

Spear-Phishers Leverage Office 365 Ecosystem to Validate Stolen Creds in Real Time

The Threat from the Internet—and What Your Organization Can Do About It

New on The Edge: Don't Fall for It! Defending Against Deepfakes

"CISA has determined that this vulnerability poses an unacceptable risk to the Federal Civilian Executive Branch and requires an immediate and emergency action," officials state. The agency last week issued an alert for the flaw following the discovery of publicly available exploit code.  

CVE-2020-1472, also called "Zerologon," has a CVSS score of 10 and is categorized as Critical by Microsoft. It exists when an attacker creates a vulnerable Netlogon secure channel connection to a domain controller using MS-NRPC. With that connection, they don't need to authenticate in order to elevate privileges and become an admin. Microsoft patched the bug back in August; it will be fully addressed in a two-part rollout. 

Emergency directive 20-04 requires federal agencies to update all Windows Servers with the domain controller role by midnight on Sept. 21. If affected controllers cannot be updated, agencies are instructed to remove them from the network. They must also ensure technical and management controls are in place to make sure newly provisioned or previously disconnected domain controller servers are updated before they're connected to agency networks.

CISA did not describe any known attacks weaponizing the vulnerability; however, its issuance of an emergency directive indicates great concern for potential attacks. While ED 20-04 only applies to Executive Branch departments and agencies, CISA "strongly recommends" state and local governments, the private sector, and other organizations patch this as soon as possible. 

Read the full directive for more details.

Dark Reading's Quick Hits delivers a brief synopsis and summary of the significance of breaking news events. For more information from the original source of the news item, please follow the link provided in this article. View Full Bio
 

Recommended Reading:

Comment  | 
Print  | 
More Insights
Comments
Threaded  |  Newest First  |  Oldest First
Cloud Security Startup Lightspin Emerges From Stealth
Kelly Sheridan, Staff Editor, Dark Reading,  11/24/2020
Look Beyond the 'Big 5' in Cyberattacks
Robert Lemos, Contributing Writer,  11/25/2020
Why Vulnerable Code Is Shipped Knowingly
Chris Eng, Chief Research Officer, Veracode,  11/30/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Write a Caption, Win an Amazon Gift Card! Click Here
Latest Comment: We are really excited about our new two tone authentication system!
Current Issue
2021 Top Enterprise IT Trends
We've identified the key trends that are poised to impact the IT landscape in 2021. Find out why they're important and how they will affect you today!
Flash Poll
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2020-7335
PUBLISHED: 2020-12-01
Privilege Escalation vulnerability in Microsoft Windows client McAfee Total Protection (MTP) prior to 16.0.29 allows local users to gain elevated privileges via careful manipulation of a folder by creating a junction link. This exploits a lack of protection through a timing issue and is only exploit...
CVE-2020-15257
PUBLISHED: 2020-12-01
containerd is an industry-standard container runtime and is available as a daemon for Linux and Windows. In containerd before versions 1.3.9 and 1.4.3, the containerd-shim API is improperly exposed to host network containers. Access controls for the shim’s API socket verified that...
CVE-2020-9114
PUBLISHED: 2020-12-01
FusionCompute versions 6.3.0, 6.3.1, 6.5.0, 6.5.1 and 8.0.0 have a privilege escalation vulnerability. Due to improper privilege management, an attacker with common privilege may access some specific files and get the administrator privilege in the affected products. Successful exploit will cause pr...
CVE-2020-9117
PUBLISHED: 2020-12-01
HUAWEI nova 4 versions earlier than 10.0.0.165(C01E34R2P4) and SydneyM-AL00 versions earlier than 10.0.0.165(C00E66R1P5) have an out-of-bounds read and write vulnerability. An attacker with specific permissions crafts malformed packet with specific parameter and sends the packet to the affected prod...
CVE-2020-4126
PUBLISHED: 2020-12-01
HCL iNotes is susceptible to a sensitive cookie exposure vulnerability. This can allow an unauthenticated remote attacker to capture the cookie by intercepting its transmission within an http session. Fixes are available in HCL Domino and iNotes versions 10.0.1 FP6 and 11.0.1 FP2 and later.