CVE-2021-20369 in Cloud Pak for Applications
Summary
by MITRE • 07/13/2021
IBM Cloud Pak for Applications 4.3 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 195361.
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Analysis
by VulDB Data Team • 07/18/2021
The vulnerability identified as CVE-2021-20369 affects IBM Cloud Pak for Applications version 4.3 and represents a significant cryptographic weakness that compromises the confidentiality of sensitive data. This issue stems from the use of cryptographic algorithms that fall below expected security standards, creating potential entry points for malicious actors seeking to access protected information. The vulnerability resides within the cryptographic implementation framework of the cloud application platform, where insufficient algorithm strength undermines the overall security posture of the system.
The technical flaw manifests through the implementation of cryptographic algorithms that do not meet contemporary security requirements for protecting sensitive information. This weakness allows attackers to potentially decrypt data that should remain protected through stronger encryption methods. The vulnerability's impact extends beyond simple data exposure as it undermines the fundamental security controls that organizations rely upon to maintain data integrity and confidentiality. According to CWE classification, this represents a weakness in cryptographic implementation that falls under the category of improper use of cryptographic primitives, specifically addressing the use of weak or deprecated cryptographic algorithms that fail to provide adequate protection.
The operational impact of this vulnerability is substantial as it creates opportunities for unauthorized data access and potential information disclosure. Attackers exploiting this weakness could gain access to highly sensitive information that is typically protected through robust cryptographic measures. This compromise affects not only the immediate confidentiality of stored data but also potentially impacts the integrity and availability of the entire application platform. Organizations utilizing IBM Cloud Pak for Applications 4.3 may face regulatory compliance issues and increased risk of data breaches that could result in significant financial and reputational damage.
Mitigation strategies should focus on immediate remediation through available patches and updates provided by IBM to address the cryptographic algorithm weaknesses. Security teams must conduct comprehensive assessments of their cryptographic implementations to identify other potential vulnerabilities that may exist within their infrastructure. The implementation of stronger cryptographic standards including the use of approved encryption algorithms and proper key management practices should be prioritized. Organizations should also consider implementing additional monitoring and detection mechanisms to identify potential exploitation attempts. From an ATT&CK framework perspective, this vulnerability aligns with techniques related to credential access and defense evasion, as attackers may use weakened cryptographic controls to gain unauthorized access to sensitive information and potentially maintain persistence within affected systems.