theDocumentId => 1334683 Microsoft SharePoint Bug Exploited in the Wild

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.

Endpoint

5/10/2019
01:45 PM
50%
50%

Microsoft SharePoint Bug Exploited in the Wild

A number of reports show CVE-2019-0604 is under active attack, Alien Labs researchers say.

Microsoft SharePoint vulnerability CVE-2019-0604 is under active attack, according to AT&T Alien Labs researchers, who cite instances of exploitation from around the world.

CVE-2019-0604 is a remote code execution vulnerability that exists when SharePoint fails to verify the source markup of an application package. Exploitation requires a user to upload a specially crafted SharePoint application package to affected versions of the software. If successful, an attacker could exploit the bug and run arbitrary code in the context of the SharePoint application pool and SharePoint server farm account. Microsoft has issued a patch.

When the vulnerability was first disclosed, it was not believed to be under active attack. Now it seems a wave of attacks are exploiting this flaw and using the China Chopper web shell to gain initial access. The Saudi Arabia National Cyber Security Center reports evidence that shows several organizations have been affected by hackers using the web shell for network access. Another report, from the Canadian Cyber Security Centre, describes similar China Chopper activity.

It seems multiple attackers are now using the exploit, Alien Labs reports. Researchers found malware they say is likely an earlier version of the second-stage malware used in the Saudi attacks; the malware sample was reportedly shared by another target in China.

Read more details here.

 

 

 

Join Dark Reading LIVE for two cybersecurity summits at Interop 2019. Learn from the industry's most knowledgeable IT security experts. Check out the Interop agenda here.

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-2021-32748
PUBLISHED: 2021-07-27
Nextcloud Richdocuments in an open source self hosted online office. Nextcloud uses the WOPI ("Web Application Open Platform Interface") protocol to communicate with the Collabora Editor, the communication between these two services was not protected by a credentials or IP check. Whilst th...
CVE-2021-34432
PUBLISHED: 2021-07-27
In Eclipse Mosquitto versions 2.07 and earlier, the server will crash if the client tries to send a PUBLISH packet with topic length = 0.
CVE-2021-20399
PUBLISHED: 2021-07-27
IBM Qradar SIEM 7.3.0 to 7.3.3 Patch 8 and 7.4.0 to 7.4.3 GA is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 196073.
CVE-2021-20562
PUBLISHED: 2021-07-27
IBM Sterling B2B Integrator Standard Edition 5.2.0.0 through 5.2.6.5_3 and 6.1.0.0 through 6.1.0.2 vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclos...
CVE-2020-18428
PUBLISHED: 2021-07-26
tinyexr commit 0.9.5 was discovered to contain an array index error in the tinyexr::SaveEXR component, which can lead to a denial of service (DOS).