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.

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
Newest First  |  Oldest First  |  Threaded View
COVID-19: Latest Security News & Commentary
Dark Reading Staff 11/19/2020
New Proposed DNS Security Features Released
Kelly Jackson Higgins, Executive Editor at Dark Reading,  11/19/2020
How to Identify Cobalt Strike on Your Network
Zohar Buber, Security Analyst,  11/18/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Write a Caption, Win an Amazon Gift Card! Click Here
Latest Comment: A GONG is as good as a cyber attack.
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-2020-25660
PUBLISHED: 2020-11-23
A flaw was found in the Cephx authentication protocol in versions before 15.2.6 and before 14.2.14, where it does not verify Ceph clients correctly and is then vulnerable to replay attacks in Nautilus. This flaw allows an attacker with access to the Ceph cluster network to authenticate with the Ceph...
CVE-2020-25688
PUBLISHED: 2020-11-23
A flaw was found in rhacm versions before 2.0.5 and before 2.1.0. Two internal service APIs were incorrectly provisioned using a test certificate from the source repository. This would result in all installations using the same certificates. If an attacker could observe network traffic internal to a...
CVE-2020-25696
PUBLISHED: 2020-11-23
A flaw was found in the psql interactive terminal of PostgreSQL in versions before 13.1, before 12.5, before 11.10, before 10.15, before 9.6.20 and before 9.5.24. If an interactive psql session uses \gset when querying a compromised server, the attacker can execute arbitrary code as the operating sy...
CVE-2020-26229
PUBLISHED: 2020-11-23
TYPO3 is an open source PHP based web content management system. In TYPO3 from version 10.4.0, and before version 10.4.10, RSS widgets are susceptible to XML external entity processing. This vulnerability is reasonable, but is theoretical - it was not possible to actually reproduce the vulnerability...
CVE-2020-28984
PUBLISHED: 2020-11-23
prive/formulaires/configurer_preferences.php in SPIP before 3.2.8 does not properly validate the couleur, display, display_navigation, display_outils, imessage, and spip_ecran parameters.