Trustwave SpiderLabs Uncovers Ov3r_Stealer Malware Spread via Phishing and Facebook Advertising. Learn More

Trustwave SpiderLabs Uncovers Ov3r_Stealer Malware Spread via Phishing and Facebook Advertising. Learn More

Services
Capture
Managed Detection & Response

Eliminate active threats with 24/7 threat detection, investigation, and response.

twi-managed-portal-color
Co-Managed SOC (SIEM)

Maximize your SIEM investment, stop alert fatigue, and enhance your team with hybrid security operations support.

twi-briefcase-color-svg
Advisory & Diagnostics

Advance your cybersecurity program and get expert guidance where you need it most.

tw-laptop-data
Penetration Testing

Test your physical locations and IT infrastructure to shore up weaknesses before exploitation.

twi-database-color-svg
Database Security

Prevent unauthorized access and exceed compliance requirements.

twi-email-color-svg
Email Security

Stop email threats others miss and secure your organization against the #1 ransomware attack vector.

tw-officer
Digital Forensics & Incident Response

Prepare for the inevitable with 24/7 global breach response in-region and available on-site.

tw-network
Firewall & Technology Management

Mitigate risk of a cyberattack with 24/7 incident and health monitoring and the latest threat intelligence.

Solutions
BY TOPIC
Microsoft Exchange Server Attacks
Stay protected against emerging threats
Rapidly Secure New Environments
Security for rapid response situations
Securing the Cloud
Safely navigate and stay protected
Securing the IoT Landscape
Test, monitor and secure network objects
Why Trustwave
About Us
Awards and Accolades
Trustwave SpiderLabs Team
Trustwave Fusion Security Operations Platform
Trustwave Security Colony
Partners
Technology Alliance Partners
Key alliances who align and support our ecosystem of security offerings
Trustwave PartnerOne Program
Join forces with Trustwave to protect against the most advance cybersecurity threats
SpiderLabs Blog

Microsoft Patch Tuesday, January 2017

It's everyone's favorite Patch Tuesday, January's Patch Tuesday. Historically January has always been a light month for bulletins and this January is the lightest in years. With only four bulletins and three CVEs, Admins should have a relatively easy time this month.

Two bulletins are rated Critical. Both are arbitrary code execution vulnerabilities. One affects MS Office where a malicious document can trigger code execution when the victim opens it. The other is the omnipresent Adobe Flash where a malicious Flash element on a web page can also trigger code to run on the victim's system.

The other two bulletins are rated as Important. The first one is a privilege escalation vulnerability in the Edge browser. The second is a variant of an older Denial of Service vulnerability in LSASS. The original DoS vulnerability was patched back in November in bulletin MS16-137 (CVE-2016-7237). This new vulnerability affects LSASS in a very similar way, but in a different portion of the code. Also, unlike the vulnerability covered by MS16-137, this vulnerability only affects Windows 7 / Server 2008 R2 and lower.

That's it. All four vulnerabilities. So take a breath, kick your feet up, but don't relax for too long. While January has always been a light month, February is sure to come back with a vengeance.

 

MS17-001
CVE-2017-0002
Important
Security Update for Microsoft Edge

This security update resolves a vulnerability in Microsoft Edge. This vulnerability could allow elevation of privilege if a user views a specially crafted webpage using Microsoft Edge. An attacker who successfully exploited the vulnerability could elevate privileges in affected versions of Microsoft Edge.

This security update is rated Important for Microsoft Edge on Windows 10 and Windows Server 2016.

 

MS17-002
CVE-2017-0003
Critical
Security Update for Microsoft Office

This security update resolves a vulnerability in Microsoft Office. The vulnerability could allow remote code execution if a user opens a specially crafted Microsoft Office file. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. Customers whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.

The security update addresses the vulnerability by correcting how affected versions of Office and Office components handle objects in memory.

See the full Microsoft bulletin for affected versions of Microsoft Office.

 

MS17-003
APSB17-02 (https://helpx.adobe.com/security/products/flash-player/apsb17-02.html)
Critical
Security Update for Adobe Flash Player

This security update resolves vulnerabilities in Adobe Flash Player when installed on all supported editions of Windows 8.1, Windows Server 2012, Windows Server 2012 R2, Windows RT 8.1, Windows 10, and Windows Server 2016.

This security update is rated Critical. The update addresses the vulnerabilities in Adobe Flash Player by updating the affected Adobe Flash libraries contained within Internet Explorer 10, Internet Explorer 11, and Microsoft Edge.

 

MS17-004
CVE-2017-0004
Important
Security Update for Local Security Authority Subsystem Service

A denial of service vulnerability exists in the way the Local Security Authority Subsystem Service (LSASS) handles authentication requests. An attacker who successfully exploited the vulnerability could cause a denial of service on the target system's LSASS service, which triggers an automatic reboot of the system.

This security update is rated Important for Microsoft Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2 (and Server Core).

Latest SpiderLabs Blogs

Hunting For Integer Overflows In Web Servers

Allow me to set the scene and start proceedings off with a definition of an integer overflow, according to Wikipedia:

Read More

Welcome to Adventures in Cybersecurity: The Defender Series

I’m happy to say I’m done chasing Microsoft certifications (AZ104/AZ500/SC100), and as a result, I’ve had the time to put some effort into a blog series that hopefully will entertain and inform you...

Read More

Trustwave SpiderLabs: Insights and Solutions to Defend Educational Institutions Against Cyber Threats

Security teams responsible for defending educational institutions at higher education and primary school levels often find themselves facing harsh lessons from threat actors who exploit the numerous...

Read More