CVE-2024-43610 Overview
CVE-2024-43610 is an information disclosure vulnerability in Microsoft Copilot Studio. The flaw allows an unauthenticated remote attacker to view sensitive information through a network attack vector. Microsoft published the advisory on October 9, 2024, classifying the issue under [CWE-200: Exposure of Sensitive Information to an Unauthorized Actor].
The vulnerability affects Microsoft Copilot Studio, the low-code platform used to build custom copilots and conversational AI agents integrated with Microsoft 365 and Power Platform services. Because exploitation requires no authentication and no user interaction, the attack surface is broad for any tenant exposing Copilot Studio resources.
Critical Impact
Unauthenticated remote attackers can retrieve sensitive information from Copilot Studio over the network without user interaction, exposing confidential tenant data.
Affected Products
- Microsoft Copilot Studio (cloud service)
- Tenants leveraging Copilot Studio agents and connectors
- Power Platform environments integrated with Copilot Studio
Discovery Timeline
- 2024-10-09 - CVE-2024-43610 published to NVD
- 2025-01-10 - Last updated in NVD database
Technical Details for CVE-2024-43610
Vulnerability Analysis
The vulnerability is categorized as Exposure of Sensitive Information to an Unauthorized Actor [CWE-200]. An attacker can reach the affected Copilot Studio endpoint across the network and retrieve information that should be restricted to authorized users. The flaw affects confidentiality only; integrity and availability are not impacted, according to the CVSS vector published by Microsoft.
Copilot Studio processes prompts, connector configurations, and conversation context that may contain tenant secrets, knowledge source references, and authentication metadata. An information disclosure flaw in this surface can expose data tied to enterprise integrations such as SharePoint connectors, Dataverse tables, and custom plugins.
Root Cause
Microsoft has not published low-level technical details for CVE-2024-43610. The advisory attributes the issue to improper handling that exposes sensitive information to actors who lack authorization. The CWE-200 classification indicates the application returned data to a caller without verifying that the caller was entitled to it.
Attack Vector
The attack vector is network-based with low complexity. The attacker does not need credentials, user interaction, or elevated privileges on the target tenant. An attacker issues crafted requests to the affected Copilot Studio service and receives sensitive information in the response. Refer to the Microsoft CVE-2024-43610 Advisory for the authoritative technical write-up.
No public proof-of-concept exploit is currently listed in Exploit-DB, and the vulnerability is not on the CISA Known Exploited Vulnerabilities catalog.
Detection Methods for CVE-2024-43610
Indicators of Compromise
- Unusual outbound access patterns to Copilot Studio API endpoints from unauthenticated sources
- Anomalous query volumes against tenant Copilot Studio resources outside normal business hours
- Unexpected references to internal connector names, knowledge sources, or system prompts appearing in external telemetry
Detection Strategies
- Review Microsoft 365 and Power Platform audit logs for anonymous or unexpected access to Copilot Studio components
- Correlate Entra ID sign-in logs with Copilot Studio activity to identify requests lacking valid authentication context
- Monitor data loss prevention (DLP) alerts that reference Copilot Studio data classifications
Monitoring Recommendations
- Enable and retain Microsoft Purview audit logs for Copilot Studio activity
- Forward Power Platform admin and connector telemetry to your SIEM for retrospective analysis
- Alert on access to Copilot Studio resources from IP ranges or user agents that do not match approved automation
How to Mitigate CVE-2024-43610
Immediate Actions Required
- Confirm tenants are running the Microsoft-serviced version of Copilot Studio; Microsoft has addressed the issue in the cloud service
- Review Copilot Studio bots, connectors, and knowledge sources for sensitive content that may have been exposed prior to remediation
- Rotate credentials, API keys, and secrets referenced by Copilot Studio connectors as a precaution
Patch Information
CVE-2024-43610 affects a Microsoft cloud service. Microsoft applied the fix server-side; no customer-installed patch is required. Validate remediation by consulting the Microsoft CVE-2024-43610 Advisory for current servicing status.
Workarounds
- Restrict Copilot Studio publication scope and disable unused channels to reduce exposure
- Apply Microsoft Purview sensitivity labels to limit what Copilot Studio agents can surface
- Enforce conditional access policies and tenant restrictions on Power Platform environments hosting Copilot Studio
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
