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

Zero Day IE Vulnerability Confirmed

No patch yet available for Internet Explorer flaw, as Microsoft and Google researcher trade barbs over bug's disclosure.

Top 10 Microsoft Stories Of 2010
(click image for larger view)
Slideshow: Top 10 Microsoft Stories Of 2010
"The year of uncoordinated disclosures has started." So tweeted French vulnerability research firm Vupen, which on Wednesday confirmed the zero-day Internet Explorer bug discovered by security researcher and Google employee Michal Zalewski.

Vupen rates the vulnerability, which it confirmed on IE8 running on Windows XP SP3, as critical. The vulnerability also affects IE8 running on Windows 7, Windows Server 2008 SP2 and R2, Windows Vista SP2, and Windows Server 2003 SP2. No patch has been released.

According to Vupen, "this issue is caused by a use-after-free error within the 'mshtml.dll' library when handling circular references between JScript objects and Document Object Model (DOM) objects, which could allow remote attackers to execute arbitrary code via a specially crafted Web page." Attackers could exploit the vulnerability to take control of a targeted system.

In a follow-up tweet, Vupen noted that in verifying the vulnerability, "reproducing was/is hard." The observation is pertinent, since Google's Zalewski released a timeline asserting that he first informed Microsoft of vulnerabilities discovered by his fuzzing engine in 2008, and alerted it to this specific bug in July 2010.

Microsoft, however, said that the vulnerabilities identified by Zalewski only appeared with the third version of his fuzzing tool, which was released in December. At that point, Microsoft requested that Zalewski delay the release of his fuzzing tool to give it time to address the vulnerability.

"After reviewing the new version of the tool and the crash report, we requested that Zalewski hold the public release of the new version of the tool and information on the specific vulnerability found in December until we could investigate further," said Jerry Bryant, group manager for trustworthy computing response communications at Microsoft. "We specifically told Zalewski we were fine with him publishing the two versions of the tool reported in July."

Zalewski declined to hold the release of the latest version of his code-fuzzing tool, asserting that Chinese security researchers -- or attackers -- had been probing for the precise vulnerability discovered by the tool. His actions drew criticism from Bryant, who accused him of amplifying the related risk.

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
COVID-19: Latest Security News & Commentary
Dark Reading Staff 5/28/2020
The Problem with Artificial Intelligence in Security
Dr. Leila Powell, Lead Security Data Scientist, Panaseer,  5/26/2020
10 iOS Security Tips to Lock Down Your iPhone
Kelly Sheridan, Staff Editor, Dark Reading,  5/22/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Current Issue
How Cybersecurity Incident Response Programs Work (and Why Some Don't)
This Tech Digest takes a look at the vital role cybersecurity incident response (IR) plays in managing cyber-risk within organizations. Download the Tech Digest today to find out how well-planned IR programs can detect intrusions, contain breaches, and help an organization restore normal operations.
Flash Poll
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2020-13660
PUBLISHED: 2020-05-28
CMS Made Simple through 2.2.14 allows XSS via a crafted File Picker profile name.
CVE-2020-11079
PUBLISHED: 2020-05-28
node-dns-sync (npm module dns-sync) through 0.2.0 allows execution of arbitrary commands . This issue may lead to remote code execution if a client of the library calls the vulnerable method with untrusted input. This has been fixed in 0.2.1.
CVE-2020-13245
PUBLISHED: 2020-05-28
Certain NETGEAR devices are affected by Missing SSL Certificate Validation. This affects R7000 1.0.9.6_1.2.19 through 1.0.11.100_10.2.10, and possibly R6120, R7800, R6220, R8000, R6350, R9000, R6400, RAX120, R6400v2, RBR20, R6800, XR300, R6850, XR500, and R7000P.
CVE-2020-4248
PUBLISHED: 2020-05-28
IBM Security Identity Governance and Intelligence 5.2.6 could allow a remote attacker to obtain sensitive information when a detailed technical error message is returned in the browser. This information could be used in further attacks against the system. IBM X-Force ID: 175484.
CVE-2020-8329
PUBLISHED: 2020-05-28
A denial of service vulnerability was reported in the firmware prior to version 1.01 used in Lenovo Printer LJ4010DN that could be triggered by a remote user sending a crafted packet to the device, causing an error to be displayed and preventing printer from functioning until the printer is rebooted...