Cyber Risks · Cisco Talos

Threat Source newsletter (March 4, 2021)

Summary: Microsoft disclosed Microsoft Exchange Server zero-day vulnerabilities earlier this week, and Microsoft said in a statement that a threat actor is exploiting them in the wild to steal users' emails. Cisco Talos also detailed a new ObliqueRAT campaign using updated macro code and adversary-controlled websites, and Cisco patched three critical vulnerabilities, the most severe rated 10 out of 10 on the CVSS scale, allowing an attacker to bypass authentication and receive a token with administrator-level privileges.

What you should know: A threat actor is already using the Exchange flaws in the wild to steal email, and one of Cisco's patched flaws carries a maximum 10-out-of-10 severity with a token that grants administrator-level API access to the targeted device.

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Topics
Zero-Days & Exploits
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