Risk
2/18/2009
04:04 PM
Connect Directly
LinkedIn
Twitter
Google+
RSS
E-Mail
50%
50%

Microsoft Internet Explorer 7 Vulnerability Being Exploited

Cyber criminals are using a malicious Microsoft Word file distributed through spam to attack an exploit Microsoft patched last week.

US-CERT, the government's cybersecurity arm, is warning users of Microsoft Internet Explorer 7 about a Trend Micro report claiming that cybercriminals are attacking Internet Explorer 7 through a vulnerability disclosed and patched by Microsoft last week.

"Cybercriminals are actively exploiting a critical vulnerability in Internet Explorer 7, which arises from the browser's improper handling of errors when attempting to access deleted objects," said Trend Micro's Jake Soriano in a blog post on Tuesday. "This vulnerability allows remote attackers to execute arbitrary codes on a vulnerable machine."

Microsoft designated Security Bulletin MS09-002 to be "critical" and gave the vulnerability a score of 1 on its Exploitability Index, indicating that functioning exploit code was expected.

According to Trend Micro, the attack begins with a malicious Microsoft Word (.doc) file distributed through spam. It contains an ActiveX control that reaches out to a malicious site that exploits the vulnerability patched by MS09-002.

If the system attacked is unpatched, the ActiveX control, identified as HTML_DLOADER.AS, will download a secret back door, identified as BKDR_AGENT.XYMS, designed to steal information from the compromised system. It also takes screenshots of the affected system and sends these to a remote location, and it will listen for commands through a hidden Internet Explorer window.

"Although the install base of the IE family is slowly eaten up by stiff competition such as Firefox and Chrome, IE7 is used by about one in every four Web users, a much larger share than previous versions of IE," observes Soriano. "This could explain why cybercriminals seem to be eagerly searching for more bugs."


InformationWeek has published an in-depth report on overhauling Microsoft. Download the report here (registration required).

Comment  | 
Print  | 
More Insights
Register for Dark Reading Newsletters
White Papers
Cartoon
Latest Comment: nice one
Current Issue
Flash Poll
Video
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2015-0845
Published: 2015-04-17
Format string vulnerability in Movable Type Pro, Open Source, and Advanced before 5.2.13 and Pro and Advanced 6.0.x before 6.0.8 allows remote attackers to execute arbitrary code via vectors related to localization of templates.

CVE-2015-0967
Published: 2015-04-17
Multiple cross-site scripting (XSS) vulnerabilities in SearchBlox before 8.2 allow remote attackers to inject arbitrary web script or HTML via (1) the search field in plugin/index.html or (2) the title field in the Create Featured Result form in admin/main.jsp.

CVE-2015-0968
Published: 2015-04-17
Unrestricted file upload vulnerability in admin/uploadImage.html in SearchBlox before 8.2 allows remote attackers to execute arbitrary code by uploading a file with an executable extension and the image/jpeg content type, a different vulnerability than CVE-2013-3590.

CVE-2015-0969
Published: 2015-04-17
SearchBlox before 8.2 allows remote attackers to obtain sensitive information via a pretty=true action to the _cluster/health URI.

CVE-2015-0970
Published: 2015-04-17
Cross-site request forgery (CSRF) vulnerability in SearchBlox before 8.2 allows remote attackers to hijack the authentication of arbitrary users.

Dark Reading Radio
Archived Dark Reading Radio
Join security and risk expert John Pironti and Dark Reading Editor-in-Chief Tim Wilson for a live online discussion of the sea-changing shift in security strategy and the many ways it is affecting IT and business.