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Iranian nation-state groups have now joined financially motivated actors in actively exploiting a critical flaw in PaperCut print management software, Microsoft said. The tech giant's threat intelligence team said it observed both Mango Sandstorm (Mercury) and Mint Sandstorm (Phosphorus) weaponizing CVE-2023-27350 in their operations to achieve initial access. "This activity shows Mint

Categories: Threat Intelligence Tags: malvertising Tags: Aurora stealer Tags: loader Tags: Amadey Not all system updates mean well, and some will even trick you into installing malware. (Read more...) The post Fake system update drops Aurora stealer via Invalid Printer loader appeared first on Malwarebytes Labs.

Summary Summary Today, Microsoft is releasing CVE-2023-24932, and associated configuration guidance, to address a Secure Boot bypass vulnerability used by the BlackLotus bootkit to exploit CVE-2022-21894. Customers will need to closely follow the configuration guidance to fully protect against this vulnerability. This vulnerability allows an attacker to execute self-signed code at the Unified Extensible Firmware Interface (UEFI) level while Secure Boot is enabled.

**What kind of security feature could be bypassed by successfully exploiting this vulnerability?** An attacker who successfully exploited this vulnerability could bypass Secure Boot.

**According to the CVSS metric, successful exploitation of this vulnerability could lead to some loss of integrity (I:L) and some loss of availability (A:L). What does that mean for this vulnerability?** An attacker can craft a malicious URL that would evade zone checks, resulting in a limited loss of integrity and availability of the victim machine.

**How could an attacker exploit the vulnerability?** In a network-based attack, an authenticated attacker as a Site Owner could execute code remotely on the SharePoint Server.

**According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?** An attacker must send the user a malicious file and convince the user to open said file.

**What privileges could be gained by an attacker who successfully exploited this vulnerability?** An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

**Is the Preview Pane an attack vector for this vulnerability?** No, the Preview Pane is not an attack vector.

**How could an attacker exploit this vulnerability?** An authorized attacker could exploit the Windows Bluetooth driver vulnerability by programmatically running certain functions that could lead to elevation of privilege on the Bluetooth component.