Partner Perspectives: Insight on Turla PNG Dropper

Editor's Note: This blog originally appeared on NCC Group's website. This is a short blog post on the PNG Dropper malware that has been developed and used by the Turla Group 1. The PNG Dropper was first discovered back in August 2017 by Carbon Black researchers. Back in 2017 it was being used to...

Microsoft Offers Analysis of Zero-Day Exploited By Zirconium Group

Microsoft has released technical details on a zero-day vulnerability being exploited by a little-known APT group known as Zirconium. According to the company the vulnerability CVE-2017-0005 affects mostly older versions of Windows and can allow an adversary to execute remote code if a user either...

Microsoft GDI+ - gdiplus!GetRECTSForPlayback Out-of-Bounds Read (MS17-013)

Exploit for windows platform in category dos / poc Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1042 We have encountered a crash in the Windows GDI+ library, in the gdiplus!GetRECTSForPlayback function, while trying to display a malformed EMF+ image file: --- 6be8.6f1c: Acces...

Microsoft Finally Releases Security Patches For Publicly-Disclosed Critical Flaws

After last month's postponement, Microsoft's Patch Tuesday is back with a massive release of fixes that includes patches for security vulnerabilities in Windows and associated software disclosed and exploited since January's patch release. Meanwhile, Adobe has also pushed out security updates for...

Patch Tuesday Returns; Microsoft Quiet on Postponement

Patch Tuesday returned today as expected after last month’s postponement with a giant release of fixes that includes patches for vulnerabilities disclosed and exploited since the last set of updates in January. Microsoft, however, was relatively silent on the reasons why the February updates were...

Google Discloses Another 'High Severity' Microsoft Bug

Google Project Zero disclosed Monday a “high severity” vulnerability it found in Microsoft’s Edge and Internet Explorer browsers that could allow remote attackers to execute arbitrary code. The revelation adds yet another vulnerability to a growing list of known bugs Microsoft has been warned...

Windows gdi32.dll heap-based out-of-bounds reads / memory disclosure (CVE-2017-0038)

In issue 757, I described multiple bugs related to the handling of DIBs Device Independent Bitmaps embedded in EMF records, as implemented in the user-mode Windows GDI library gdi32.dll. As a quick reminder, the DIB-embedding records follow a common scheme: they include four fields, spots denotin...

Microsoft releases update for Flash Player, but leaves two disclosed Flaws Unpatched

Microsoft on Tuesday released security update KB 4010250 to patch flaws in Adobe Flash Player for its customers using Internet Explorer on Windows 8.1 and later, as well as Edge for Windows 10, but two already disclosed flaws remain unpatched. Just last week, Microsoft announced that its February...

Google Discloses Unpatched Microsoft Vulnerability

Google’s security researchers disclosed details of an unpatched Microsoft vulnerability in Windows’ GDI library that allows attackers to steal sensitive data from program memory. The flaw was first addressed by Microsoft last June, but Google said the patch was incomplete. As part of its 90-day...

Microsoft Windows - GDI+ ValidateBitmapInfo Invalid Pointer Arithmetic Out-of-Bounds Reads (MS16-097)

Microsoft Windows - GDI+ ValidateBitmapInfo Invalid Pointer Arithmetic Out-of-Bounds Reads MS16-097 Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=826 The GDI+ library can handle bitmaps originating from untrusted sources through a variety of attack vectors, like EMF files, whi...

Microsoft GDI+ - ValidateBitmapInfo Invalid Pointer Arithmetic Out-of-Bounds Reads (MS16-097)

Exploit for windows platform in category dos / poc Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=826 The GDI+ library can handle bitmaps originating from untrusted sources through a variety of attack vectors, like EMF files, which may embed bitmaps in records such as EMRPLGBLT...

Microsoft Windows - GDI+ ValidateBitmapInfo Invalid Pointer Arithmetic Out-of-Bounds Reads (MS16-097)

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=826 The GDI+ library can handle bitmaps originating from untrusted sources through a variety of attack vectors, like EMF files, which may embed bitmaps in records such as EMRPLGBLT, EMRBITBLT, EMRSTRETCHBLT, EMRSTRETCHDIBITS etc. I...

Microsoft Windows - GDI+ DecodeCompressedRLEBitmap Invalid Pointer Arithmetic Out-of-Bounds Write (MS16-097)

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=824 The GDI+ library can handle bitmaps originating from untrusted sources through a variety of attack vectors, like EMF files, which may embed bitmaps in records such as EMRPLGBLT, EMRBITBLT, EMRSTRETCHBLT, EMRSTRETCHDIBITS etc. T...

Windows XP/2003/Vista Metafile Escape() SetAbortProc Code Execution

No description provided by source. $Id: ms06001wmfsetabortproc.rb 10394 2010-09-20 08:06:27Z jduck $ This file is part of the Metasploit Framework and may be subject to redistribution and commercial restrictions. Please see the Metasploit Framework web site for more information on licensing and...

Microsoft Windows XP/2000/2003 Graphical Device Interface Plus Library Denial of Service Vulnerability

No description provided by source. source: http://www.securityfocus.com/bid/19221/info Reportedly, the Microsoft Windows GDI+ library 'gdiplus.dll' is prone to a denial-of-service vulnerability because the software fails to handle malformed image files properly. An attacker may leverage this issu...

Microsoft Windows 2000/2003/XP Graphical Device Interface Library Denial of Service Vulnerability

No description provided by source. source: http://www.securityfocus.com/bid/12834/info Reportedly, a denial of service vulnerability affects Microsoft Windows GDI library 'gdi32.dll'. This issue is due to a failure of the application to securely copy data from malformed EMF image files. An attack...

CVE-2012-0167

Heap-based buffer overflow in the Office GDI+ library in Microsoft Office 2003 SP3 and 2007 SP2 and SP3 allows remote attackers to execute arbitrary code via a crafted EMF image in an Office document, aka "GDI+ Heap Overflow Vulnerability."...

CVE-2012-0167

Heap-based buffer overflow in the Office GDI+ library in Microsoft Office 2003 SP3 and 2007 SP2 and SP3 allows remote attackers to execute arbitrary code via a crafted EMF image in an Office document, aka "GDI+ Heap Overflow Vulnerability."...

VUPEN Security Research - Microsoft Windows GDI+ Size Handling Integer Overflow Vulnerability

VUPEN Security Research - Microsoft Windows GDI+ Size Handling Integer Overflow Vulnerability http://www.vupen.com/english/research.php I. BACKGROUND --------------------- "Microsoft Windows is a series of software operating systems and graphical user interfaces produced by Microsoft. Windows had...

Microsoft Windows GDI library multiple security vulnerabilities

Buffer overflow and integer overflow on WMF parsing...