CVE-2022-27889 in Foundry Multipass
Summary
by MITRE • 06/14/2022
The Multipass service was found to have code paths that could be abused to cause a denial of service for authentication or authorization operations. A malicious attacker could perform an application-level denial of service attack, potentially causing authentication and/or authorization operations to fail for the duration of the attack. This could lead to performance degradation or login failures for customer Palantir Foundry environments. This vulnerability is resolved in Multipass 3.647.0. This issue affects: Palantir Foundry Multipass versions prior to 3.647.0.
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Analysis
by VulDB Data Team • 06/15/2022
The vulnerability identified as CVE-2022-27889 represents a critical denial of service weakness within the Palantir Foundry Multipass service architecture. This authentication and authorization framework serves as a foundational component for enterprise security operations within Palantir's platform ecosystem, making the potential impact of this vulnerability particularly severe for organizations relying on Palantir Foundry for their data infrastructure and access control needs. The issue stems from specific code paths within the Multipass service that can be exploited to disrupt fundamental security operations, creating a scenario where legitimate users may be unable to authenticate or authorize access to protected resources. The vulnerability affects all versions of Palantir Foundry Multipass prior to version 3.647.0, indicating that organizations running older versions remain exposed to potential attacks targeting their authentication infrastructure.
The technical implementation of this vulnerability involves code paths that, when properly manipulated by an attacker, can cause authentication and authorization operations to fail completely or experience significant performance degradation. This type of application-level denial of service attack operates at the security layer rather than at network or system levels, making it particularly challenging to detect and mitigate. The exploitation mechanism likely involves sending carefully crafted requests or inputs that trigger resource exhaustion, infinite loops, or other error conditions within the authentication processing pipeline. According to CWE classification standards, this vulnerability would fall under CWE-400, which encompasses improper handling of resources, and potentially CWE-1321, which deals with improper handling of authentication failures. The attack surface is particularly concerning because authentication and authorization are core functions that must remain available for all legitimate operations within enterprise environments.
The operational impact of CVE-2022-27889 extends beyond simple service disruption to potentially compromise the entire security posture of affected Palantir Foundry environments. Organizations may experience cascading failures where authentication failures propagate throughout their systems, affecting multiple applications and services that depend on the Multipass service for access control. The vulnerability's potential to cause login failures creates a direct business impact, as users may be unable to access critical data and applications during the attack window. From an attacker perspective, this vulnerability aligns with ATT&CK technique T1499.004, which focuses on network denial of service attacks, and potentially T1566.002 for social engineering attacks that could leverage authentication failures to gain further access. The attack could be executed with minimal resources and technical expertise, making it particularly dangerous for organizations with limited security monitoring capabilities.
Organizations affected by this vulnerability should prioritize immediate remediation through the upgrade to Multipass version 3.647.0 or later, which contains the necessary patches to address the identified code paths. Security teams should implement monitoring for unusual authentication patterns or performance degradation that could indicate exploitation attempts, particularly focusing on authentication request volumes and response times. The mitigation strategy should include network-level controls such as rate limiting and access control lists to limit the potential impact of exploitation attempts. Additionally, organizations should conduct thorough testing of the updated service to ensure that the patch does not introduce compatibility issues with existing security policies or integrations. Security professionals should also consider implementing additional authentication monitoring and alerting mechanisms to detect potential exploitation attempts before they can cause significant disruption to business operations. The vulnerability highlights the importance of maintaining up-to-date security infrastructure and demonstrates how seemingly small code path issues can have substantial impacts on enterprise security operations.