CVE-2024-21388 is an elevation of privilege vulnerability found in Microsoft Edge (Chromium-based). With a CVSS score of 6.5, this medium severity vulnerability can potentially allow attackers to gain unauthorized access to sensitive data within the browser. The exploitation of this vulnerability poses a risk to organizations, as it could lead to unauthorized actions performed within user sessions.
The vulnerability was published on January 30, 2024, and is classified under CWE-20, indicating improper input validation. Given its nature, organizations using Microsoft Edge (Chromium-based) should be particularly vigilant. The known exploit status of this vulnerability suggests that it may be actively targeted, emphasizing the urgency for organizations to implement a patch.
Organizations should prioritize patching immediately. Addressing this vulnerability is critical to ensure the integrity and confidentiality of user data, as well as to prevent potential breaches.
The exploitability score for this vulnerability is medium, indicating that while it may not be as straightforward to exploit as high severity vulnerabilities, it still poses a significant risk. Organizations should ensure their systems are updated to the latest version of Edge Chromium to mitigate this risk.
Vulnerability Details
The vulnerability allows for elevation of privilege due to improper validation of input in Edge Chromium. The CVSS score of 6.5 categorizes it as medium severity, which should not be underestimated. Affected versions include all prior to version 121.0.2277.83. Organizations must consult the vendor's security update guide for the specific patch details.
Technical Analysis
The root cause of CVE-2024-21388 stems from a flaw in input validation, which can be exploited over a network. The attack complexity is classified as high, which means that specific conditions must be met for an attack to succeed. Notably, the attacker does not require any privileges or user interaction to trigger the vulnerability.
In terms of impacts, the vulnerability has a low confidentiality, integrity, and availability impact. This suggests that while the exploit may not lead to widespread disruption, it can still compromise user data and sessions.
Risk & Impact Analysis
The real-world risk posed by CVE-2024-21388 is significant, especially for organizations that rely heavily on Microsoft Edge for daily operations. The potential for attackers to gain elevated privileges could lead to unauthorized access to sensitive information, which can result in data breaches and reputational damage.
Given that the exploitability score is medium, organizations must assess their current usage of Edge Chromium and the likelihood of being targeted. The urgency of addressing this vulnerability is further amplified by its potential impact on compliance and regulatory standards.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of Microsoft Edge (Chromium-based) prior to version 121.0.2277.83 are affected by this vulnerability. Organizations should ensure they upgrade to the latest version to mitigate risks associated with this flaw.
Mitigation & Remediation
Organizations should apply the available patches from Microsoft as soon as possible. For those unable to immediately patch, implementing network controls and monitoring for suspicious activities related to browser extensions may provide temporary mitigations.
For further information on the patch and remediation, organizations can refer to the Microsoft Security Response Center.
Detection Guidance
Monitoring logs for unusual behavior in Microsoft Edge (Chromium-based) installations is crucial. Organizations should look for anomalies in extension installations and user behavior that may indicate exploitation attempts.
AppSecure Threat Intelligence Insight
CVE-2024-21388 highlights the ongoing challenges in software security, particularly in widely used applications like web browsers. As attackers continue to evolve their methods, it is essential for security teams to stay informed of vulnerabilities and to implement a proactive security posture.
This vulnerability also serves as a reminder of the importance of implementing security best practices, such as regular patching and thorough monitoring.
For a comprehensive understanding of security practices, organizations may consider exploring topics like penetration testing and vulnerability management as part of their security strategy.
Organizations should also consider leveraging API security testing to enhance their overall security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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