theDocumentId => 1339816 Microsoft Reveals That Russian Attackers Accessed ...

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.

Attacks/Breaches

12/31/2020
02:33 PM
50%
50%

Microsoft Reveals That Russian Attackers Accessed Some of Its Source Code

Malicious SolarWinds Orion backdoor installed in Microsoft's network led to the attackers viewing some of its source code.

Microsoft today disclosed its discovery that the attackers behind the SolarWinds breach and rigged software update had commandeered one of its internal accounts to view — but not alter — some of its source code "in a number of source code repositories."

The revelation is the latest twist in a complex breach believed to be perpetrated by Russian hackers on behalf the nation's SVR intelligence arm that has infiltrated major US government agencies, including the US State Department and Treasury, as well as major companies such as Microsoft and FireEye, the security giant that first detected and revealed the breach. The so-called Dark Halo group (aka UNC2452) infiltrated network management vendor SolarWinds' software build system and planted a backdoor called Sunburst into updates of the company's Orion software used by the victims. Some 33,000 organizations worldwide received the software update, and around 18,000 installed it on their systems — including Microsoft.

Related Content:

5 Key Takeaways From the SolarWinds Breach

Building an Effective Cybersecurity Incident Response Team

New From The Edge: 5 Email Threat Predictions for 2021

SolarWinds' Orion software wasn't the only initial attack vector, however. The Cybersecurity & Infrastructure Security Agency (CISA) said the attackers used other methods as well, which have not yet been publicly disclosed.

Microsoft said that the attackers' viewing its source code poses no increase in security risk because its security threat model assumes attackers have some knowledge of the code. One of Microsoft's user accounts was used by the attackers to view the company's source code, but the company said that account was not authorized to modify code or engineering systems. Microsoft was able to confirm no changes were made to the code, and the compromised user accounts have been "remediated."

"Our investigation has, however, revealed attempted activities beyond just the presence of malicious SolarWinds code in our environment. This activity has not put at risk the security of our services or any customer data, but we want to be transparent and share what we're learning as we combat what we believe is a very sophisticated nation-state actor," Microsoft said in the blog post today.

 

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
Newest First  |  Oldest First  |  Threaded View
Edge-DRsplash-10-edge-articles
I Smell a RAT! New Cybersecurity Threats for the Crypto Industry
David Trepp, Partner, IT Assurance with accounting and advisory firm BPM LLP,  7/9/2021
News
Attacks on Kaseya Servers Led to Ransomware in Less Than 2 Hours
Robert Lemos, Contributing Writer,  7/7/2021
Commentary
It's in the Game (but It Shouldn't Be)
Tal Memran, Cybersecurity Expert, CYE,  7/9/2021
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
The State of Cybersecurity Incident Response
In this report learn how enterprises are building their incident response teams and processes, how they research potential compromises, how they respond to new breaches, and what tools and processes they use to remediate problems and improve their cyber defenses for the future.
Flash Poll
How Enterprises are Developing Secure Applications
How Enterprises are Developing Secure Applications
Recent breaches of third-party apps are driving many organizations to think harder about the security of their off-the-shelf software as they continue to move left in secure software development practices.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2021-32686
PUBLISHED: 2021-07-23
PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In PJSIP before version 2.11.1, there are a couple of issues found in the SSL socket. First, a race condition between callback and ...
CVE-2021-32783
PUBLISHED: 2021-07-23
Contour is a Kubernetes ingress controller using Envoy proxy. In Contour before version 1.17.1 a specially crafted ExternalName type Service may be used to access Envoy's admin interface, which Contour normally prevents from access outside the Envoy container. This can be used to shut down Envoy rem...
CVE-2021-3169
PUBLISHED: 2021-07-23
An issue in Jumpserver 2.6.2 and below allows attackers to create a connection token through an API which does not have access control and use it to access sensitive assets.
CVE-2020-20741
PUBLISHED: 2021-07-23
Incorrect Access Control in Beckhoff Automation GmbH & Co. KG CX9020 with firmware version CX9020_CB3011_WEC7_HPS_v602_TC31_B4016.6 allows remote attackers to bypass authentication via the "CE Remote Display Tool" as it does not close the incoming connection on the Windows CE side if t...
CVE-2021-25808
PUBLISHED: 2021-07-23
A code injection vulnerability in backup/plugin.php of Bludit 3.13.1 allows attackers to execute arbitrary code via a crafted ZIP file.