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Vulnerabilities CVE-2023-29357

CVE-2023-29357

Medium
Open
KEV
TLP:CLEAR

Microsoft SharePoint Server Privilege Escalation Vulnerability

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Description

Microsoft — SharePoint Server — Microsoft SharePoint Server contains an unspecified vulnerability that allows an unauthenticated attacker, who has gained access to spoofed JWT authentication tokens, to use them for executing a network attack. This attack bypasses authentication, enabling the attacker to gain administrator privileges.

Details

EPSS Score
99.65%

99.9th percentile

Confidence
100%
CISA KEV
Date Added
Jan 10, 2024
Patch Due
Jan 31, 2024
Used in ransomware campaigns
Required Action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
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