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Nov 22, 2021
Microsoft Exchange Vulnerability - CVE-2021-42321
THE THREAT eSentire has identified publicly available Proof-of-Concept (PoC) exploit code, for the critical Microsoft Exchange vulnerability CVE-2021-42321. CVE-2021-42321 was announced as part of Microsoft’s November Patch Tuesday release. Exploitation would allow a remote threat actor, with previous authentication, to execute code on vulnerable servers. Prior to the patch release, Microsoft…
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Telarus and eSentire Expand Partnership to Safeguard Enterprises Globally Against Business Disrupting Ransomware and Zero-Day Attacks
London, UK and Sydney, Australia– Oct. 28, 2021 - eSentire, recognized globally as the Authority in Managed Detection and Response (MDR), today announces the expansion of its partnership with Telarus, the largest privately-held distributor of business cloud infrastructure and contact centre services. Building on their mutual success across North America, Telarus will bring eSentire’s Managed…
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Security advisories — Mar 25, 2021

Cisco Jabber Critical Vulnerability - CVE-2021-1411

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THE THREAT

Cisco has announced multiple vulnerabilities impacting Cisco Jabber, a unified communications solution, affecting Windows, MacOS and mobile platforms.

The highest impact vulnerability from this release is a Remote Code Execution (RCE) vulnerability affecting Windows devices, tracked as CVE-2021-1411 (CVSS: 9.9). A previously authenticated threat actor could exploit vulnerable Cisco Jabber versions to execute arbitrary code as the user running a vulnerable Jabber client in victim environments.

Organizations are strongly recommended to apply the security update from Cisco before exploitation is identified in the wild.

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Additional information

Vulnerabilities Announced:

None of the vulnerabilities listed in this advisory are known to be exploited in the wild or have functioning public Proof-of-Concept (PoC) exploit code at the time of writing. CVE-2021-1411 is likely to attract significant attention from both threat actors and security researchers.

References:

[1] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cisco-jabber-PWrTATTC

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