Active exploitation of two critical flaws impacting Mitel's MiVoice Connect business communications platform has resulted in their inclusion in the Cybersecurity and Infrastructure Security Agency's Known Exploited Vulnerabilities catalog, according to SecurityWeek.
Threat actors with internal network access could leverage the vulnerabilities, tracked as CVE-2022-40765 and CVE-2022-41223, to enable arbitrary code execution. Federal agencies have been ordered to address the flaws by March 14.
Patches have been released by Mitel in October. While no public information regarding attacks exploiting the flaws have been recorded, threat actors were previously observed by CrowdStrike to leverage an older zero-day flaw, tracked as CVE-2022-29499. Such a bug has already been used by the Lorenz ransomware operation, while another Mitel vulnerability, tracked as CVE-2022-26143, was utilized in distributed denial-of-service attacks.
Another Mitel flaw dating back to 2010 was also reported earlier this month by Palo Alto Networks to be targeted by the novel Mirai botnet variant V3G4.
CNN reports that a potential compromise of the Department of Homeland Security's sensitive physical security details is being looked into by the department's senior officials following a ransomware attack against contractor and major building automation systems manufacturer Johnson Controls International.
Most organizations impacted by ransomware attacks have been noted by the FBI to be experiencing another intrusion involving a different ransomware variant within 48 hours of each other, BleepingComputer reports.