Maintenance to NetSweeper Web Filtering

As part of ongoing performance improvements, we will be replacing some key equipment within the NetSweeper Web filtering infrastructure. In order to achieve this customers will see a period of outage while the change over… More »

Service Updates News
Further Update on Log4Shell Vulnerability (CVE-2021-44228)

Following on from the Log4j advisories sent 13/12 and 15/12, Apache has released version 2.17.0 of Log4j after discovering issues with their previous release, 2.16.   Summary:   Apache Log4j2 versions 2.0-alpha1 through 2.16.0 did not protect from… More »

noPac Vulnerability (CVE-2021-42287 and CVE-2021-42278 ) 

Summary Our security partners are investigating multiple proof-of-concept exploits for CVE-2021-42287, a privilege escalation vulnerability associated with Active Directory Domain Services (AD DS). This vulnerability combined with a Security Account Manager (SAM) spoofing security bypass… More »

Update on Log4Shell Vulnerability (CVE-2021-44228) 

As posted previously there have been a number of vulnerabilities to Log4j services based on an update to CVE-2021-44228 – Vulnerability, has now had major developments regarding the Log4j vulnerability since our last advisory. This update… More »

Log4Shell Vulnerability (CVE-2021-44228) 

Summary In the wake of the Log4Shell vulnerability - CVE-2021-44228, our support partner JISC have been monitoring network connectivity and looking for proactive ways to prevent exploitation.   It is imperative to take into consideration the entire infrastructure when responding… More »

Christmas 2021 Checklist

With Christmas nearly upon us (doesn’t it seem to come round quicker each year?), the hustle and bustle of nativities and Christmas songs being sang, as we edge closer to the end of term. To… More »

Zoho managengine ServiceDesk Plus Vulnerability – CVE-2021-44077

Summary This is an authentication bypass vulnerability in some specific application URLs that allows an attacker to gain access to an organisation’s data on the ServiceDesk Plus application. By manipulating one of these URLs from… More »

Windows Installer Elevation of Privilege Vulnerability (CVE-2021-41379) 

Summary  On 22/11, security researcher Abdelhamid Naceri publicly disclosed a new zero-day vulnerability for “Windows Installer Elevation of Privilege”, which Microsoft had attempted to patch in November 2021, under CVE-2021-41379. The patch released by Microsoft… More »

Microsoft Vulnerability - Remote Code Execution (CVE-2021-42321) 

update from our previous post – Microsoft vulnerability - Remote Code Execution (CVE-2021-40444) Summary  On 21/11, two weeks after the patch for CVE-2021-42321 was released in MS Patch Tuesday, open-source reporting disclosed that a proof-of-concept exploit… More »


Keeping Up To Date With Us Is Easy, Sign Up To Our Newsletter Today!

Stay in touch with emPSN, so that you get the latest e-safety advice and invites to our community events.

    Our partners