Horizon Alert
Summary of the vulnerability and why it matters
This advisory addresses a critical vulnerability in MISP, a platform used for threat intelligence sharing. The issue, related to how user input is handled, could allow unauthorized access and modification of information if exploited. The primary concern is to confirm if our deployment is affected and understand its exposure.
- Allows unauthorized data access and modification.
- Critical issue in threat intelligence sharing platform.
- Confirm relevance and exposure.
Attack Path
How an attacker could exploit the issue
An attacker could reach the vulnerable component of MISP through its network interface without needing any special access. By manipulating the `order` parameter in specific requests, they could interact with vulnerable model files, potentially leading to significant data compromise and system disruption. This vulnerability allows for unauthorized actions that could affect the confidentiality, integrity, and availability of the system.
- No authentication or special access required.
- Exploited via manipulation of the `order` parameter.
- Leads to critical data and system compromise.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability could affect the integrity and availability of the MISP platform, potentially impacting the accuracy and usability of shared threat intelligence data. When supported by the advisory, an attacker could leverage this flaw to manipulate data sorting, which might lead to unexpected system behavior or compromise the integrity of information within the platform.
- Threat intelligence data integrity.
- Unauthenticated network access to manipulate data.
- Disruption of threat intelligence sharing.
Operational Fix
Recommended remediation, mitigation, and detection steps
This critical vulnerability in MISP affects all users due to its network exploitability and lack of authentication requirements. The first practical step is to identify all MISP instances, confirm their reachability and business criticality, and then engage the platform or application owners to plan remediation.
- Platform owners should manage the issue.
- Verify external accessibility and impact.
- Coordinate vendor update or mitigation.
