This vulnerability allows remote malicious users to bypass authentication on affected installations of Microsoft SharePoint. Authentication is not required to exploit this vulnerability. The specific flaw exists within the ValidateTokenIssuer method. The issue results from the lack of proper verification of a cryptographic signature. An attacker can leverage this vulnerability to bypass authentication on the system.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
microsoft sharepoint server 2019 |
CISA tags Microsoft SharePoint RCE bug as actively exploited By Sergiu Gatlan March 27, 2024 12:24 PM 0 CISA warns that attackers are now exploiting a Microsoft SharePoint code injection vulnerability that can be chained with a critical privilege escalation flaw for pre-auth remote code execution attacks. Tracked as CVE-2023-24955, this SharePoint Server vulnerability enables authenticated attackers with Site Owner privileges to execute code remotely on vulnerable servers. The second flaw (...
Topics Security Off-Prem On-Prem Software Offbeat Special Features Vendor Voice Vendor Voice Resources It’s taken months for crims to hack together a working exploit chain
Security experts claim ransomware criminals have got their hands on a functional exploit for a nearly year-old critical Microsoft SharePoint vulnerability that was this week added to the US's must-patch list. Without specifically identifying the gang, researcher Kevin Beaumont said that at least one ransomware group has a working exploit for the critical vulnerability, which can potentially achieve remote code execution (RCE) although the US Cybersecurity and Infrastructure Security Agency (CISA...
Topics Security Off-Prem On-Prem Software Offbeat Special Features Vendor Voice Vendor Voice Resources Plus: Adobe, SAP and Android push updates
Microsoft has released security updates for 78 flaws for June's Patch Tuesday, and luckily for admins, none of these are under exploit. Yesterday's critical Fortinet bug and the ongoing Progress MOVEit flaws, however, are entirely different stories, so the proverbial thoughts and prayers to the teams dealing with those messes. Microsoft's big patch day rated six of today's fixes as critical and four of these garnered a 9.8 severity score, so let's start with those. CVE-2023-29357, a Micros...
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