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.

Attacks/Breaches

8/19/2015
11:30 AM
Sara Peters
Sara Peters
Quick Hits
Connect Directly
Twitter
RSS
E-Mail
50%
50%

IE Bug Exploited In Wild After Microsoft Releases Out-Of-Band Patch

Remote code execution vulnerability in Internet Explorer versions 7 through 11 being used to drop PlugX RAT.

A critical memory corruption vulnerability in Internet Explorer versions 7 through 11 that Microsoft released an emergency patch for yesterday is being used in watering hole and spearphishing attacks. Successful exploitation enables remote code execution and grants the attacker the same privileges as the current user.

The vulnerability, CVE-2015-2502, is a memory corruption bug, exploited by a hacker either hosting a malicious website or running malicious content on a legitimate site.

The attack seen in the wild has been using a malicious IFrame and drops a variant of the PlugX remote access Trojan, which calls a command-and-control server based in Korea, according to Heimdal Security.

“The recently exposed flaw does allow remote code execution so it is in a class that is pretty serious," says Cris Thomas, strategist at Tenable Network Security. "The key here though, and the reason why Microsoft issued an out-of-band patch, isn't because this bug is super bad, but because bad guys are using this bug right now to break into people’s systems. However, Microsoft hasn't released any information with regards to how extensive that usage is. It is possible that this issue is only being used in selective, highly targeted attacks or it could be in widespread use on a botnet or third party web advertising network.

"Unfortunately, there are no work-arounds for this bug. Ensuring that you have Microsoft's Enhanced Mitigation Experience Toolkit configured will make exploiting this bug more difficult, but not impossible."  

Sara Peters is Senior Editor at Dark Reading and formerly the editor-in-chief of Enterprise Efficiency. Prior that she was senior editor for the Computer Security Institute, writing and speaking about virtualization, identity management, cybersecurity law, and a myriad ... View Full Bio

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
10 Ways to Keep a Rogue RasPi From Wrecking Your Network
Curtis Franklin Jr., Senior Editor at Dark Reading,  7/10/2019
The Security of Cloud Applications
Hillel Solow, CTO and Co-founder, Protego,  7/11/2019
Where Businesses Waste Endpoint Security Budgets
Kelly Sheridan, Staff Editor, Dark Reading,  7/15/2019
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Write a Caption, Win a Starbucks Card! Click Here
Latest Comment: "Jim, stop pretending you're drowning in tickets."
Current Issue
Building and Managing an IT Security Operations Program
As cyber threats grow, many organizations are building security operations centers (SOCs) to improve their defenses. In this Tech Digest you will learn tips on how to get the most out of a SOC in your organization - and what to do if you can't afford to build one.
Flash Poll
The State of IT Operations and Cybersecurity Operations
The State of IT Operations and Cybersecurity Operations
Your enterprise's cyber risk may depend upon the relationship between the IT team and the security team. Heres some insight on what's working and what isn't in the data center.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2019-3571
PUBLISHED: 2019-07-16
An input validation issue affected WhatsApp Desktop versions prior to 0.3.3793 which allows malicious clients to send files to users that would be displayed with a wrong extension.
CVE-2019-6160
PUBLISHED: 2019-07-16
A vulnerability in various versions of Iomega and LenovoEMC NAS products could allow an unauthenticated user to access files on NAS shares via the API.
CVE-2019-9700
PUBLISHED: 2019-07-16
Norton Password Manager, prior to 6.3.0.2082, may be susceptible to an address spoofing issue. This type of issue may allow an attacker to disguise their origin IP address in order to obfuscate the source of network traffic.
CVE-2019-12990
PUBLISHED: 2019-07-16
Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 allow Directory Traversal.
CVE-2019-12991
PUBLISHED: 2019-07-16
Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 5 of 6).