Risk
4/30/2010
08:49 PM
George V. Hulme
George V. Hulme
Commentary
50%
50%

Microsoft Issues Workaround For Serious SharePoint Vulnerability

While not a complete patch, the software maker has issued guidance detailing how to mitigate a serious vulnerability that places corporate data at-risk to snooping and theft.

While not a complete patch, the software maker has issued guidance detailing how to mitigate a serious vulnerability that places corporate data at-risk to snooping and theft.On Thursday, the Swiss security company High-Tech Bridge published a security note that detailed a cross-site scripting vulnerability in SharePoint 2007, which makes it possible for attackers to insert and execute JavaScript code of their choice on a system through a browser. The security firm also published proof-of-concept code that demonstrates the vulnerability - so expect attacks to quickly follow.

Because SharePoint servers are used for internal corporate collaboration, they make an ideal target for anyone trying to gain entry to sensitive information.

Today, Microsoft provided a short-term work-around that requires running a number of commands from the command prompt to shut down access to the at-risk part of the system. More detail on the work-around is available here.

On the company's Security, Research and Defense blog, they described the most likely way the vulnerability would be attacked:

The most likely attack scenario, then, is that an attacker sends a malicious link to a user who is logged into their Sharepoint server. If the user clicks the link, the javascript created by the attacker and embedded in the link would execute in the context of the user who clicked the link.

Best advice: apply the workaround, and hope that Microsoft is able to provide a patch for this issue by within month's scheduled patch update, May 11.

For security and technology updates throughout the day, follow me on Twitter.

Comment  | 
Print  | 
More Insights
Comments
Threaded  |  Newest First  |  Oldest First
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Write a Caption, Win a Starbucks Card! Click Here
Latest Comment: This is a secure windows pc.
Current Issue
Security Operations and IT Operations: Finding the Path to Collaboration
A wide gulf has emerged between SOC and NOC teams that's keeping both of them from assuring the confidentiality, integrity, and availability of IT systems. Here's how experts think it should be bridged.
Flash Poll
New Best Practices for Secure App Development
New Best Practices for Secure App Development
The transition from DevOps to SecDevOps is combining with the move toward cloud computing to create new challenges - and new opportunities - for the information security team. Download this report, to learn about the new best practices for secure application development.
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2017-0290
Published: 2017-05-09
NScript in mpengine in Microsoft Malware Protection Engine with Engine Version before 1.1.13704.0, as used in Windows Defender and other products, allows remote attackers to execute arbitrary code or cause a denial of service (type confusion and application crash) via crafted JavaScript code within ...

CVE-2016-10369
Published: 2017-05-08
unixsocket.c in lxterminal through 0.3.0 insecurely uses /tmp for a socket file, allowing a local user to cause a denial of service (preventing terminal launch), or possibly have other impact (bypassing terminal access control).

CVE-2016-8202
Published: 2017-05-08
A privilege escalation vulnerability in Brocade Fibre Channel SAN products running Brocade Fabric OS (FOS) releases earlier than v7.4.1d and v8.0.1b could allow an authenticated attacker to elevate the privileges of user accounts accessing the system via command line interface. With affected version...

CVE-2016-8209
Published: 2017-05-08
Improper checks for unusual or exceptional conditions in Brocade NetIron 05.8.00 and later releases up to and including 06.1.00, when the Management Module is continuously scanned on port 22, may allow attackers to cause a denial of service (crash and reload) of the management module.

CVE-2017-0890
Published: 2017-05-08
Nextcloud Server before 11.0.3 is vulnerable to an inadequate escaping leading to a XSS vulnerability in the search module. To be exploitable a user has to write or paste malicious content into the search dialogue.

Dark Reading Radio
Archived Dark Reading Radio
In past years, security researchers have discovered ways to hack cars, medical devices, automated teller machines, and many other targets. Dark Reading Executive Editor Kelly Jackson Higgins hosts researcher Samy Kamkar and Levi Gundert, vice president of threat intelligence at Recorded Future, to discuss some of 2016's most unusual and creative hacks by white hats, and what these new vulnerabilities might mean for the coming year.