CVE-2021-36021 is a high-severity vulnerability affecting Magento versions 2.4.2 (and earlier), 2.4.2-p1 (and earlier), and 2.3.7 (and earlier). This vulnerability allows for improper input validation within the CMS page scheduled update feature. An authenticated attacker with administrative privileges could leverage this vulnerability to achieve remote code execution on the system. The CVSS score for this vulnerability is 7.2, indicating a high level of severity.
Risk to organizations includes potential unauthorized access and control over the affected systems, which could lead to data breaches or service disruptions. Given the nature of the vulnerability, attackers may leverage this flaw to escalate their privileges and execute arbitrary code remotely. Organizations should prioritize patching immediately to mitigate this risk.
As of the last update on November 21, 2024, no public exploit has been confirmed, and the vulnerability is not part of the Known Exploited Vulnerabilities (KEV) catalog. Organizations using the affected Magento versions should take immediate steps to apply the necessary patches.
To ensure security, Magento users are advised to regularly check for updates and apply any patches provided by Adobe. Notably, this vulnerability emphasizes the need for continuous monitoring and proactive security practices within web application management.
Organizations should also implement security measures such as network segmentation and monitoring to detect any suspicious activities that may exploit this vulnerability.
Furthermore, training administrative users on the importance of input validation and the risks associated with improper configurations can help mitigate the impact of such vulnerabilities in the future.
In conclusion, CVE-2021-36021 represents a significant risk to organizations utilizing Magento. Immediate action is required to ensure systems are secure and up-to-date.
Vulnerability Details
The official description of this vulnerability states that it is due to improper input validation in the CMS page scheduled update feature. Specifically, Magento versions 2.4.2 and earlier, as well as 2.3.7 and earlier, are impacted. This could allow an authenticated attacker with administrative privileges to execute arbitrary code on the server.
The CVSS score of 7.2 indicates a high-severity vulnerability, with the following characteristics:
Metric | Value |
|---|---|
Attack Vector | NETWORK |
Attack Complexity | LOW |
Privileges Required | HIGH |
User Interaction | NONE |
Confidentiality Impact | HIGH |
Integrity Impact | HIGH |
Availability Impact | HIGH |
Technical Analysis
The root cause of CVE-2021-36021 is improper input validation, which allows for exploitation by authenticated users with administrative privileges. The attack vector is over the network, with low complexity required for exploitation. High privileges are necessary to exploit this vulnerability, and no user interaction is needed. This vulnerability impacts the confidentiality, integrity, and availability of the affected systems.
Risk & Impact Analysis
Real-world deployment risk associated with CVE-2021-36021 is substantial due to the potential for remote code execution. This vulnerability poses a risk to organizations because attackers may leverage it to execute arbitrary code, potentially leading to data breaches or loss of system control. The blast radius includes all instances of Magento versions 2.4.2 and earlier, as well as 2.3.7 and earlier, affecting numerous organizations using these platforms.
Urgency assessment is high, as the CVSS score of 7.2 indicates significant risk. Organizations should prioritize remediation efforts, ensuring that systems are patched to mitigate this vulnerability.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of Magento include 2.4.2 (and earlier), 2.4.2-p1 (and earlier), and 2.3.7 (and earlier). Organizations are advised to upgrade to the latest versions to mitigate this vulnerability.
Mitigation & Remediation
To remediate CVE-2021-36021, organizations should apply the latest patches provided by Magento. If patches are not yet available, organizations should consider implementing additional security controls such as network segmentation and strict access controls. For further guidance on security practices, organizations can refer to the penetration testing methodology provided by AppSecure.
Detection Guidance
Organizations should monitor logs for any unusual activities associated with the CMS page scheduled updates. Behavioral anomalies such as unauthorized access attempts or unexpected changes to scheduled updates should be flagged for immediate investigation.
AppSecure Threat Intelligence Insight
This vulnerability highlights the ongoing risk of improper input validation flaws within widely-used platforms such as Magento. Security teams should take this opportunity to review their security postures, ensuring that input validation mechanisms are robust and regularly tested. Organizations can benefit from reinforcing their security practices by adopting a comprehensive application security assessment approach to identify potential weaknesses.
Additionally, leveraging continuous penetration testing services can provide ongoing validation of security controls and help organizations stay ahead of emerging threats.
Finally, establishing a security champion program can empower teams to prioritize security within their development processes, further reducing the risk of vulnerabilities like CVE-2021-36021.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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