Events

Patch Tuesday October 2011

Microsoft customers have an urgent and heavy dose of patching to do today. Internet Explorer may have only one update assigned to it, but the MS11-081 cumulative update fixes eight different vulnerabilities. And these vulnerabilities impact all lines of Windows, including Windows 7 x64 all the way up through Windows Server 2008 x64 Service Pack 2.

The nice thing about it, is that on the consumer side, Microsoft has developed their update utility to handle most of the decision making for you. On the corporate side, sys admins all handle the updates their own way, which may require important compatibility and quality testing efforts.

In addition to the eight critical vulnerabilities being fixed in Internet Explorer, both consumer and corporate customers urgently need to patch Silverlight with MS11-078, which may or may not be installed on your system. Silverlight is Microsoft’s interactive media web browser plug-in (along with the Novell/Mono efforts), enabling developers to code up Silverlight applications in any .NET language (C#, etc). In other words, it’s competition for Adobe’s Flash, only without the same adoption rate at this point. Anyway, both IE and Silverlight are two software clients that are heavily used, and reliable exploitation will lead to remote code execution across the wide variety of Windows versions. It would be surprising to not see related exploits added to packs and widely used in attack attempts over the coming months. On the server side, if a IIS server processes ASP.NET pages and a malicious attacker uploads a ASP.NET page and then executes the page, the attackers’ code could be executed on the server. Please patch immediately.

Of the eight security bulletins, two are rated critical and six important, addressing 23 vulnerabilities across Internet Explorer, .NET Framework & Silverlight, Microsoft Windows, Microsoft Forefront UAG, and Microsoft Host Integration Server. MS11-077 patches a couple of interesting bugs in the core Windows drivers that expose exploitable vulnerabilities across all the supported Windows versions from Windows XP SP3 to Windows Server 2008 x64 SP2, including a use-after-free in win32k.sys leading to EoP and a font library file BoF leading to RCE.

Patch Tuesday October 2011

Your email address will not be published. Required fields are marked *

 

Reports

Ferocious Kitten: 6 years of covert surveillance in Iran

Ferocious Kitten is an APT group that has been targeting Persian-speaking individuals in Iran. Some of the TTPs used by this threat actor are reminiscent of other groups, such as Domestic Kitten and Rampant Kitten. In this report we aim to provide more details on these findings.

Andariel evolves to target South Korea with ransomware

In April 2021, we observed a suspicious Word document with a Korean file name and decoy. It revealed a novel infection scheme and an unfamiliar payload. After a deep analysis, we came to a conclusion: the Andariel group was behind these attacks.

Operation TunnelSnake

A newly discovered rootkit that we dub ‘Moriya’ is used by an unknown actor to deploy passive backdoors on public facing servers, facilitating the creation of a covert C&C communication channel through which they can be silently controlled. The victims are located in Africa, South and South-East Asia.

Subscribe to our weekly e-mails

The hottest research right in your inbox