InfoSecBulletin Cybersecurity for mankind
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) included a Microsoft SharePoint Server vulnerability in its list of known exploited vulnerabilities due to signs of active use by attackers.
CVE-2023-24955 is a critical flaw that lets a user with Site Owner access run any code they choose.
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“In a network-based attack, an authenticated attacker as a Site Owner could execute code remotely on the SharePoint Server,” Microsoft said in an advisory. Microsoft fixed the flaw in its May 2023 Patch Tuesday updates.
More than two months ago, CISA added CVE-2023-29357, a privilege escalation flaw in SharePoint Server, to its KEV catalog.
Microsoft previously told “customers who have enabled automatic updates and enable ‘Receive updates for other Microsoft products’ option within their Windows Update settings are already protected.”
Federal agencies must implement these security updates by April 16, 2024, to protect their systems.
