CVE-2020-4831 in DataPower Gateway
Summary
by MITRE • 03/13/2021
IBM DataPower Gateway 10.0.0.0 through 10.0.1.0 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 189965.
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Analysis
by VulDB Data Team • 04/01/2021
The vulnerability identified as CVE-2020-4831 affects IBM DataPower Gateway versions 10.0.0.0 through 10.0.1.0, representing a critical weakness in the cryptographic implementation that compromises the confidentiality of sensitive data. This issue falls under the broader category of weak cryptographic algorithms as classified by CWE-327, which specifically addresses the use of insecure cryptographic algorithms that fail to provide adequate protection for data at rest and in transit. The vulnerability stems from the gateway's implementation of cryptographic protocols that do not meet modern security standards, creating opportunities for adversaries to compromise encrypted communications and access confidential information. The affected versions of DataPower Gateway utilize cryptographic mechanisms that are susceptible to various attacks including brute force attempts, side-channel analysis, and known-plaintext attacks that exploit the inherent weaknesses in the algorithmic implementation. The security implications extend beyond simple data exposure, as the compromised cryptographic integrity can enable attackers to perform man-in-the-middle attacks, decrypt sensitive business information, and potentially gain unauthorized access to downstream systems that rely on the gateway for secure communication.
The technical flaw manifests in the gateway's handling of cryptographic operations where it employs algorithms or key sizes that are insufficient to protect against contemporary computational capabilities and attack methodologies. This weakness allows attackers to perform cryptographic attacks that would otherwise be computationally infeasible against properly implemented cryptographic systems. The vulnerability specifically impacts the gateway's ability to maintain secure communication channels, potentially exposing data such as user credentials, financial information, personal identifiers, and proprietary business data. The implementation issues are particularly concerning because DataPower Gateways are commonly deployed in enterprise environments as critical components for securing API communications, integrating disparate systems, and managing secure data flows between applications and services. Attackers leveraging this vulnerability can exploit the weaker cryptographic algorithms to decrypt communications that should remain protected, potentially leading to significant data breaches and compliance violations. The vulnerability's impact is amplified in environments where the gateway handles sensitive data such as personally identifiable information, healthcare records, or financial transaction data, making it particularly attractive to threat actors seeking to exploit the weakness for financial gain or competitive intelligence.
The operational impact of CVE-2020-4831 extends beyond immediate data exposure to encompass broader security posture degradation and potential regulatory consequences. Organizations utilizing affected DataPower Gateway versions face increased risk of data breaches that could result in substantial financial losses, legal liability, and reputational damage. The vulnerability's exploitation can lead to unauthorized access to critical business information, disruption of services, and compromise of the entire communication infrastructure that relies on the gateway for secure operations. Security teams must consider the potential for cascading effects where compromised gateway communications could facilitate further attacks against connected systems, potentially enabling privilege escalation or lateral movement within the network. The vulnerability also impacts compliance with industry standards such as pci dss, hipaa, and gdpr, as organizations may fail to meet regulatory requirements for data protection when cryptographic implementations do not meet minimum security standards. Organizations may experience audit failures, regulatory penalties, and increased insurance premiums as a result of the vulnerability's presence in their security infrastructure.
Organizations should implement immediate mitigations including upgrading to patched versions of IBM DataPower Gateway where available, as IBM has released updates to address the cryptographic weakness. The recommended approach involves applying the vendor-provided security patches that strengthen the cryptographic implementations and ensure compliance with current security standards. Additional mitigations include implementing network segmentation to limit access to affected gateways, monitoring for suspicious cryptographic activity, and conducting thorough security assessments to identify any potential compromise. Security teams should also consider implementing alternative cryptographic solutions or additional layers of security controls to protect against potential exploitation while awaiting patch deployment. The vulnerability highlights the importance of maintaining up-to-date cryptographic implementations and following security best practices such as those outlined in the NIST Cryptographic Standards and the OWASP Top Ten security risks. Organizations should also implement continuous monitoring for similar vulnerabilities and establish robust patch management processes to ensure timely deployment of security updates. The incident underscores the critical nature of cryptographic security in enterprise environments and the necessity of regular security assessments to identify and remediate weaknesses before they can be exploited by malicious actors.