CyberRota Analysis
AI-GeneratedMISP versions up to 2.5.45 are vulnerable due to inadequate authorization checks when handling sharing group IDs in event edits, allowing attackers to manipulate event distribution settings without proper permissions. This flaw could lead to unauthorized access to sensitive information shared within specific groups, potentially compromising data integrity and confidentiality. Organizations using affected versions should prioritize patching to mitigate the risk of unauthorized data exposure.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
Affected versions of MISP fail to authorize a submitted sharing group in a specific event-edit path. The vulnerable logic checked whether the acting user could use a sharing_group_id only when the request explicitly supplied distribution = 4. If the attacker instead omitted distribution but supplied a different sharing_group_id, that authorization branch was skipped. Later, MISP’s field-recovery logic restored the existing event distribution from storage. For events already configured with sharing-group distribution, the unauthorized sharing-group ID could therefore be saved. The fix adds authorization checks in both the controller and Event::_edit() whenever a non-empty sharing_group_id is supplied without distribution. The model now calls SharingGroup::checkIfAuthorised() before persisting the change. Version affected: ≤2.5.45