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Vulnerability

CVE-2018-4990 – Adobe Reader Double Free (Zero Day) vulnerability alert!

 May 16, 2018

Estimated reading time: 1 minute

The recent zero-day vulnerability CVE-2018-4990 in Adobe Reader enables attackers to perform a Remote Code Execution on targeted machines. Adobe has released a security advisory APSB18-09 on May 14, 2018 to address this issue. According to Adobe, the in-wild attack is targeted and it impacts limited Windows users. Vulnerable versions...

CVE-2018-8174: Windows VBScript Engine Remote Code Execution Vulnerability – An advisory by Quick Heal Security Labs

 May 10, 2018

Estimated reading time: 1 minute

The recent zero-day vulnerability in Windows VBScript Engine (CVE-2018-8174), enables attackers to perform a remote code execution on targeted machines. Microsoft has released a security advisory CVE-2018-8174 on May 8, 2018, to address this issue. According to Microsoft, it impacts most of the Windows Operating Systems. Vulnerable versions Windows 7 x86 and x64 versions Windows...

Chinese, Russian hackers counting on Apache Struts vulnerabilities – a report by Quick Heal Security Labs

 March 7, 2018

Estimated reading time: 4 minutes

Apache Struts is an open-source CMS based on MVC framework for developing Java EE Web Applications. Apache Struts has been widely used by many Fortune 100 companies and government agencies over the years for developing web applications. But, websites built using a CMS constantly need to upgrade the CMS versions in their web application servers, because vulnerabilities...

A massive security flaw discovered in Skype. Fix not coming anytime soon.

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 February 14, 2018

Estimated reading time: 2 minutes

Quick Heal Security Labs has recently learned about a serious vulnerability in Skype’s update installer – that’s the bad news. The worse news is, Microsoft is not going to patch the vulnerability anytime soon as this would require the updater to go through a ‘large code revision’. What is this...

Vulnerabilities found in Broadcom Wi-Fi adapter of Lenovo laptop chipsets

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 February 13, 2018

Estimated reading time: 2 minutes

Lenovo recently released an advisory, warning customers about two critical Broadcom vulnerabilities which impact 25 models of its popular ThinkPad lineup. The Broadcom Wi-Fi chipsets used by Lenovo ThinkPad devices are affected by the CVE-2017-11120 & CVE-2017-11121 vulnerabilities. Both these issues are rated as “critical” and received a CVSS 10 score...

An analysis of an MS office document exploiting a zero-day flash player vulnerability (CVE-2018-4878)

 February 7, 2018

Estimated reading time: 3 minutes

Important update! Adobe Systems released a critical security update on 6.02.2017 to fix the vulnerability discussed in this post. We recommend you to apply the update immediately. Summary of the vulnerability CVE-2018-4878 is a use-after-free vulnerability present in Adobe Flash Player 28.0.0.137 and its earlier versions are being exploited in...

Malspam campaigns exploiting recent MS Office vulnerability ‘CVE-2017-11882’ – An Analysis by Quick Heal Security Labs

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 February 5, 2018

Estimated reading time: 4 minutes

No wonder malspam campaigns are a major medium to spread malware. Previously, we have written about such campaigns making use of MS Office malware such as malicious macro, CVE-2017-0199, CVE-2017-8759 and DDE-based attack. Recently, we have started observing various malspam campaigns exploiting the latest MS Office vulnerability CVE-2017-11882. Let’s take a look...

An emerging trend of DDE based Office malware – an analysis by Quick Heal Security Labs

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 December 6, 2017

Estimated reading time: 3 minutes

For the past few years, we have been seeing macro-based attacks through Object Linking Embedding (OLE)/Microsoft Office files. But, presently, attackers are using a different technique to spread malware through Office files – using a new attack vector called ‘Dynamic Data Exchange (DDE)’. DDE is an authorized Microsoft Office feature that provides several methods for transferring data between applications. Once the communication protocol is established, it doesn’t require user interactions...

CVE-2017-8759 | .NET Framework Remote Code Execution Vulnerability – An analysis by Quick Heal Security Labs

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 September 14, 2017

Estimated reading time: 2 minutes

The recent zero-day vulnerability in .NET Framework vulnerability CVE-2017-8759 enables attackers to perform a Remote Code Execution on the targeted machine. This vulnerability is found to be exploited in the wild through email spam messages loaded with malicious RTF files as an attachment. Microsoft has released a security update on...

Anatomy of Flash Exploit (CVE-2015-8651) integrated into Rig Exploit Kit

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 April 25, 2017
cybersecurity

Estimated reading time: 4 minutes

We all know how the infamous RIG Exploit Kit have been used to infect the end users. We are seeing a constant spike in the usage of the RIG Exploit Kit by malware actors to spread malware. Its use has been noticed in different campaigns such as EITest, pseudoDarkleech, and...