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Home Search results for "web browsers"

Google demonstrates Spectre attack in Chrome

By Mark Faithfull | News, Vulnerabilities | 17 March, 2021 | 0

At the start of 2018 details were first published of the theoretical Spectre attack which exploits flaws in the design of modern CPU to allow data to be stolen from memory.  Now Google has published a working proof-of-concept. Spectre is the name given to a number of attacks that are variations on a theme –Read more

Browsers block more ports to prevent NAT Slipstream attacks

By Mark Faithfull | News, Tools | 10 March, 2021 | 0

Web browsers are adding more TCP ports to their block lists in an attempt to prevent exploitation of NAT Slipstream attacks. NAT Slipstreaming is an attack which tricks the NAT router into allowing external traffic through the NAT firewall to target any internal network device by abusing protocols such as SIP or H.323 where thisRead more

Google Patches Chrome Zero-Day Vulnerability

By Mark Faithfull | News, Vulnerabilities | 28 October, 2020 | 0

Google has issued an urgent update for Chrome which patches a zero-day vulnerability under active exploitation. The Chrome team took just one day from report of the vulnerability to issuing the patch, such is the danger posed by this flaw. The patch is included in Chrome version v86.0.4240.111 (CVE-2020-15999) – any older versions should beRead more

Server certificates valid for 13 months from September

By Mark Faithfull | News | 3 July, 2020 | 0

Mozilla and Google have confirmed they will be aligning with Apple and their browsers will reject any web server certificate issued after 1st September which is valid for more than a year. Apple announced the move to only support 1 year certificates back in February and now Mozilla and Google (and thus all the ChromiumRead more

Internet Explorer zero-day RCE attack

By Mark Faithfull | News, Vulnerabilities | 23 January, 2020 | 2

Microsoft has released details of a zero-day remote code execution vulnerability which is being actively exploited to attack Windows computers. It affects all versions of Internet Explorer running on Windows 7, 8.1 and 10. The problems lies in one of the two javascript engines available within IE.  Since a webpage can request IE to useRead more

RCE affects PHP 7 on NGINX

By Mark Faithfull | News, Vulnerabilities | 1 November, 2019 | 0

A serious remote command execution vulnerability in the PHP-FGM module when used with NGINX has been disclosed in CVE  CVE-2019-11043. Since NGINX does not have a native in-process PHP runtime and uses PHP-FGM instead, the PHP-FGM module is widely used. By submitting a specially crafted (yet simple) HTTP requested to the NGINX server, it isRead more

Germany declares Firefox the most secure browser

By Mark Faithfull | News | 29 October, 2019 | 0

The German Federal Office for Information Security (or BSI) has published a report (in German) which evaluates the most popular modern web browsers against the BSI’s own guidelines for ‘modern secure browsers’ and only Firefox emerges with flying colours. The audit examined Mozilla Firefox 68 (Extended Support Release), Google Chrome 76, Microsoft Internet Explorer 11,Read more

Google Chrome vulnerability patched

Critical Chrome RCE vulnerability patched

By Mark Faithfull | News, Vulnerabilities | 2 October, 2019 | 0

Google is rolling out a critical patch for their Chrome browser in order to fix four serious vulnerabilities including one which enables arbitrary code execution on the system simply by visiting a specially crafted webpage – with no other user interaction required. Google is not releasing details of the vulnerabilities, other than to say theyRead more

microsoft patch tuesday december

Death by PowerPoint and other vulnerabilities

By Mark Faithfull | News, Vulnerabilities | 20 December, 2018 | 0

Microsoft’s December 2018 patch Tuesday release includes fixes for several critical vulnerabilities including one in PowerPoint which affects all versions since PowerPoint 2010. The PowerPoint bug (CVE-2018-8628) would allow an attacker to create a specially-crafted file, which when opened by PowerPoint, would enable the attacker to run arbitrary code as the logged-in user.   According toRead more

sennheiser headphones vulnerability

Sennheiser headphone bug highlights certificate vulnerability

By Mark Faithfull | News, Vulnerabilities | 12 December, 2018 | 0

A recent vulnerability in Sennheiser’s headphone management utility illustrates the risk of unexpected additions to the Microsoft windows certificate store. During installation, the Sennheiser software installed a self-signed root certificate into the computer’s trusted root CA certificate store. A copy of the certificates’ private key was also copied into application’s installation directory.  Security research firmRead more

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