Microsoft Friday warned its customers that attackers are targeting an unpatched and critical Windows vulnerability.
Microsoft Friday warned its customers that attackers are targeting an unpatched and critical Windows vulnerability.Microsoft Security Advisory (2286198) addresses a previously known vulnerability that makes it possible to exploit removable drives. Microsoft claims it has so far seen only limited, targeted attacks:
The vulnerability exists because Windows incorrectly parses shortcuts in such a way that malicious code may be executed when the user clicks the displayed icon of a specially crafted shortcut. This vulnerability is most likely to be exploited through removable drives. For systems that have AutoPlay disabled, customers would need to manually browse to the root folder of the removable disk in order for the vulnerability to be exploited. For Windows 7 systems, AutoPlay functionality for removable disks is automatically disabled.
Anti-virus vendor Sophos warns that this vulnerability makes it possible for attackers to exploit all versions of Windows, including Windows 7:
The flaw is in how shell32.dll tries to load control panel icons from applets. By making a specially crafted shortcut pointing to a malicious file, you can make Windows Explorer blindly execute the malicious file when the location of the shortcut is merely browsed to. In this case the malicious file is a rootkit and a dropper that immediately hide the special shortcut (.lnk) files. Allowing executable code to load in the process of trying to retrieve an icon seems like a major oversight in the design of Windows.
Below is an interesting video produced by Sophos that demonstrates the attack underway.
Currently, Microsoft's advice is to disable icons for shortcuts. While a savvy home user may be able to pull that off - it's unlikely to be practical in a business environment. Most users will think their PC is "broken" and wonder why files won't launch. They also suggest disabling the WebDav WebClient. That's another less-than-ideal solution if your enterprise uses SharePoint.
That means, unfortunately, your best bet may be to make certain that your anti-malware software protects against the current batch of exploits. And wait for the inevitable patch, which hopefully comes on or before August's Patch Tuesday.
Secure Application Development - New Best PracticesThe 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.
Published: 2015-10-15 The Direct Rendering Manager (DRM) subsystem in the Linux kernel through 4.x mishandles requests for Graphics Execution Manager (GEM) objects, which allows context-dependent attackers to cause a denial of service (memory consumption) via an application that processes graphics data, as demonstrated b...
Published: 2015-10-15 Cross-site request forgery (CSRF) vulnerability in eXtplorer before 2.1.8 allows remote attackers to hijack the authentication of arbitrary users for requests that execute PHP code.
Published: 2015-10-15 Directory traversal vulnerability in QNAP QTS before 4.1.4 build 0910 and 4.2.x before 4.2.0 RC2 build 0910, when AFP is enabled, allows remote attackers to read or write to arbitrary files by leveraging access to an OS X (1) user or (2) guest account.
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.