CVE-2021-34580 in mymbCONNECT24
Summary
by MITRE • 10/27/2021
In mymbCONNECT24, mbCONNECT24
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Analysis
by VulDB Data Team • 11/01/2021
CVE-2021-34580 represents a critical authentication bypass vulnerability affecting mymbCONNECT24 and mbCONNECT24 software implementations. This vulnerability stems from improper input validation and authentication mechanisms within the application's session management system, allowing attackers to bypass legitimate authentication processes and gain unauthorized access to sensitive system resources. The flaw specifically manifests when the application fails to properly validate user credentials during the authentication handshake, creating a pathway for malicious actors to exploit weak credential handling routines.
The technical implementation of this vulnerability aligns with CWE-287, which addresses improper authentication issues in software systems. Attackers can leverage this weakness by crafting malicious requests that circumvent the standard authentication flow, effectively allowing them to impersonate legitimate users without proper credentials. The vulnerability exists in the application's handling of authentication tokens and session identifiers, where insufficient validation allows crafted payloads to be accepted as valid authentication requests. This flaw operates at the application layer and can be exploited through network-based attacks without requiring physical access to the system.
The operational impact of CVE-2021-34580 extends beyond simple unauthorized access, as it provides attackers with potential lateral movement capabilities within the affected network infrastructure. Once authenticated, malicious actors can exploit additional system vulnerabilities or perform data exfiltration activities that could compromise sensitive organizational information. The vulnerability affects the integrity and confidentiality of data processed through these applications, potentially enabling privilege escalation attacks where low-privilege users could gain administrative access to system resources. This creates a significant risk for organizations relying on these connectivity solutions for critical business operations.
Mitigation strategies for CVE-2021-34580 should include immediate patch deployment from the software vendor, followed by comprehensive network monitoring to detect potential exploitation attempts. Organizations should implement additional authentication layers such as multi-factor authentication to reduce the impact of credential compromise. Security teams should also conduct thorough vulnerability assessments of related systems to identify potential additional vulnerabilities that could be exploited through this initial compromise. The remediation process should follow NIST cybersecurity guidelines and include network segmentation to limit the blast radius of potential attacks. Additionally, implementing proper access controls and regular security audits can help prevent similar vulnerabilities from emerging in future software implementations. This vulnerability demonstrates the critical importance of robust authentication mechanisms and proper input validation in preventing unauthorized system access.