CVE-2021-21982 is a critical authentication bypass vulnerability found in VMware Carbon Black Cloud Workload appliance versions 1.0.0 and 1.0.1. This vulnerability allows a malicious actor with network access to the administrative interface of the appliance to obtain a valid authentication token. Successful exploitation of this vulnerability would enable the attacker to view and modify administrative configuration settings, posing significant risks to the integrity and confidentiality of the system.
With a CVSS score of 9.1, this vulnerability is classified as critical, highlighting its severe impact on organizational security. The attack vector is network-based, and the complexity is low, making it easier for attackers to exploit. Given that no authentication is required, this vulnerability presents a substantial risk, particularly for organizations relying on VMware Carbon Black for security management.
Organizations should prioritize patching this vulnerability immediately to mitigate the risk of unauthorized access and potential compromise of sensitive data. The urgency of remediation is underscored by the potential consequences of exploitation, including unauthorized alterations to critical configuration settings.
As of now, there are no confirmed public exploits available, but organizations are advised to remain vigilant and monitor for any developments regarding this vulnerability. The risk to organizations includes the possibility of malicious configuration changes that could lead to data breaches or system disruptions.
Immediate action is necessary to ensure the security of systems running VMware Carbon Black Cloud Workload. Organizations should implement the recommended patches and verify their effectiveness to prevent possible exploitation.
Vulnerability Details
The vulnerability is described in detail as follows: VMware Carbon Black Cloud Workload appliance versions 1.0.0 and 1.0.1 contain an authentication bypass vulnerability. This issue allows attackers with network access to obtain a valid authentication token, enabling them to gain administrative control over the appliance.
The CVSS score for this vulnerability is 9.1, indicating a critical severity level. The vulnerability type is categorized under CWE-287, which pertains to improper authentication. This underscores the critical nature of ensuring robust authentication mechanisms are in place.
The affected products include VMware Carbon Black Cloud Workload, and the vulnerability was published on April 1, 2021.
Technical Analysis
The root cause of this vulnerability lies in the improper handling of authentication mechanisms within the VMware Carbon Black Cloud Workload appliance. Attackers may exploit this vulnerability to bypass authentication controls, allowing them to access the administrative interface without proper credentials.
The attack vector is network-based, which means that an attacker only needs network access to exploit this vulnerability. The attack complexity is low, indicating that no specialized skills or resources are required to carry out an attack successfully.
Importantly, no privileges are required for the attack, and user interaction is not necessary to exploit this vulnerability. This means an attacker could potentially exploit the vulnerability without any input from legitimate users.
The impacts of this vulnerability are significant, with high confidentiality and integrity impacts. Successful exploitation would allow an attacker to view and modify sensitive administrative settings, which could have serious consequences for the organization.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2021-21982 is substantial. Given the nature of the vulnerability, organizations using VMware Carbon Black Cloud Workload are at risk of significant data breaches and unauthorized changes to their configurations. The potential blast radius is considerable, as an attacker gaining administrative access could manipulate settings that affect the entire workload environment.
The urgency of addressing this vulnerability is critical, given its CVSS score of 9.1. Organizations must prioritize remediation to prevent exploitation, especially in environments where sensitive data is managed or where compliance requirements dictate strict security controls.
Failure to remediate this vulnerability could lead to severe repercussions, including regulatory fines, reputational damage, and loss of customer trust.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The versions affected by this vulnerability are VMware Carbon Black Cloud Workload 1.0.0 and 1.0.1. If version information is missing, organizations should consider all versions prior to vendor patch as vulnerable.
Mitigation & Remediation
Organizations should apply the latest patches released by VMware to remediate this vulnerability effectively. It is essential to upgrade to the latest version of VMware Carbon Black Cloud Workload to ensure that all security flaws are addressed.
In cases where immediate patching is not possible, organizations should implement temporary workarounds such as restricting network access to the administrative interface and enhancing monitoring for any unauthorized access attempts.
Continuous penetration testing should also be considered to validate the effectiveness of security measures in place.
Detection Guidance
Organizations should monitor logs for any unusual authentication requests or access to sensitive configuration settings. Behavioral anomalies, such as unexpected changes to administrative settings, should be flagged for review.
Network signatures indicating unauthorized access attempts should be established, and system changes should be tracked to detect any potential exploitation of this vulnerability.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2021-21982 lies in its illustration of common authentication vulnerabilities found in networked devices. This case highlights the necessity for rigorous security assessments and the importance of maintaining strong authentication controls to mitigate similar risks.
The pattern observed here represents a trend in the exploitation of authentication weaknesses, which are frequently targeted by attackers. Security teams can learn valuable lessons from this incident, emphasizing the need for continuous monitoring and proactive security measures.
Strategically, organizations should consider implementing security frameworks that focus on comprehensive threat modeling and vulnerability management to prevent similar issues from arising in the future.
Security teams are encouraged to regularly review their security practices and invest in training to recognize and address these vulnerabilities proactively.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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