CVE-2025-21422 in Snapdragon Auto
Summary
by MITRE • 07/08/2025
Cryptographic issue while processing crypto API calls, missing checks may lead to corrupted key usage or IV reuses.
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Analysis
by VulDB Data Team • 07/22/2025
This cryptographic vulnerability resides within the processing of cryptographic application programming interface calls where insufficient validation mechanisms exist to prevent critical security failures. The flaw manifests when the system fails to properly validate inputs or enforce proper cryptographic protocols during API interactions, creating opportunities for adversaries to manipulate the cryptographic operations. The vulnerability specifically targets the integrity of key management and initialization vector handling processes, where missing validation checks can result in improper key usage patterns or the reuse of initialization vectors across multiple encryption operations.
The technical implementation of this vulnerability stems from inadequate input sanitization and validation procedures within the cryptographic API processing pipeline. When cryptographic operations are initiated through the API, the system should verify that all parameters meet cryptographic standards and that key material is properly isolated and managed. However, the missing checks allow for malformed or malicious inputs to bypass validation, potentially leading to the corruption of cryptographic keys or the inadvertent reuse of initialization vectors. This represents a fundamental failure in cryptographic protocol enforcement and can be categorized under CWE-310, which addresses cryptographic weakness due to improper implementation of cryptographic protocols.
The operational impact of this vulnerability extends beyond simple cryptographic failures to encompass potential data breaches and confidentiality compromises. When initialization vectors are reused, it creates predictable encryption patterns that can be exploited by attackers to perform statistical analysis and potentially recover plaintext information. Key corruption through improper usage can result in complete loss of cryptographic protection for data at rest or in transit. The vulnerability creates opportunities for advanced persistent threats to establish long-term access to sensitive systems and data repositories. According to ATT&CK framework, this vulnerability maps to techniques involving credential access and defense evasion through cryptographic manipulation, potentially enabling adversaries to bypass encryption controls and maintain persistence within affected systems.
Mitigation strategies must address the fundamental validation failures within the cryptographic API implementation. Organizations should implement comprehensive input validation routines that enforce strict cryptographic parameter checking before any cryptographic operations are executed. The system architecture should incorporate proper key management protocols that prevent key reuse and ensure proper entropy generation for initialization vectors. Regular cryptographic audits and code reviews should focus specifically on API call processing to identify similar validation gaps. Additionally, implementing cryptographic libraries that enforce proper usage patterns and provide built-in validation mechanisms can significantly reduce the risk of exploitation. The vulnerability requires immediate attention as it represents a critical weakness in cryptographic infrastructure that can be leveraged for substantial data compromise and system infiltration activities.