Microsoft Critical and Important Vulnerability Highlights CERT/CC: CVE-2022-34301 Eurosoft Boot Loader Bypass CERT/CC: CVE-2022-34302 New Horizon Data Systems Inc Boot Loader Bypass CERT/CC: CVE-2022-34303 Crypto Pro Boot Loader BypassĪt the time of publication, a CVSSv3.1 score has not been assigned.Įxploitability Assessment: Exploitation More Likely See ADV990001 | Latest Servicing Stack Updates for more information.Īn attacker who successfully exploited either of these three (3) vulnerabilities could bypass Secure Boot. Microsoft customers should ensure they have installed the latest Servicing Stack Update before installing these standalone security updates. The packages have a built-in pre-requisite logic to ensure the ordering. These security updates have a Servicing Stack Update prerequisite for specific KB numbers. These packages must be installed in addition to the normal security updates to be protected from this vulnerability. Security Feature Bypass Vulnerabilities Addressed For more information, see Exchange Server Sup port for Windows Extended Protection and/or The Exchange Blog.Įxploitability Assessment: Exploitation Unlikely An attacker would have no way to force users to visit this specially crafted server share or website, but would have to convince them to visit the server share or website, typically by way of an enticement in an email or chat message. An attacker would have to host a specially crafted server share or website. This vulnerability requires that a user with an affected version of Exchange Server access a malicious server. This vulnerability has a CVSSv3.1 score of 7.6/10. – Excerpt from Surge in CVEs as Microsoft Fixes Exploited Zero Day BugĬVE-2022-30134 | Microsoft Exchange Information Disclosure Vulnerability Qualys director of vulnerability and threat research, Bharat Jogi, said DogWalk had actually been reported back in 2019 but at the time was not thought to be dangerous as it required “significant user interaction to exploit,” and there were other mitigations in place.
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