CVE-2021-1800 is a medium-severity vulnerability in Apple Xcode, identified by a CVSS score of 5.5. This vulnerability allows a malicious application to access arbitrary files on the host device while running an app that uses on-demand resources with Xcode. It is crucial for organizations utilizing Xcode to address this issue, as it poses a significant risk due to the potential for unauthorized file access.
Published on April 2, 2021, this vulnerability has been classified under CWE with no specific weakness type defined. Its exploitability is categorized as medium, which indicates that while public exploits are not confirmed, the risk remains present due to the nature of the vulnerability.
Organizations should prioritize patching immediately by upgrading to Xcode version 12.4 or later, which addresses the path handling issue through improved validation. Failure to apply this update could lead to unauthorized access to sensitive information.
With the ongoing evolution of security threats, it is essential for developers and organizations to remain vigilant and proactive in implementing security updates to mitigate risks associated with vulnerabilities like CVE-2021-1800.
Vulnerability Details
The vulnerability is described as a path handling issue that has been addressed with improved validation. The official description notes that a malicious application may be able to access arbitrary files on the host device while running an app that uses on-demand resources with Xcode. This issue is fixed in Xcode 12.4.
The CVSS score of 5.5 indicates a medium severity level, categorized by a local attack vector (AV:L), low attack complexity (AC:L), and no privileges required (PR:N). User interaction is required (UI:R), and the confidentiality impact is rated high (C:H), while integrity and availability impacts are rated as none (I:N, A:N).
Affected systems include all versions of Xcode prior to version 12.4. This vulnerability highlights the importance of regular updates and security checks to maintain the integrity of development environments.
Technical Analysis
The root cause of this vulnerability lies in improper path handling, which could allow a malicious application to exploit on-demand resources within Xcode. The attack vector is local, requiring that the attacker has access to the host device. The attack complexity is low, meaning that a successful exploit could be achieved with minimal effort.
No privileges are required for exploitation, and user interaction is necessary, as the malicious application must be run by the victim. The confidentiality impact is high, as unauthorized file access can lead to sensitive data exposure, while both integrity and availability remain unaffected.
Risk & Impact Analysis
Risk to organizations includes potential unauthorized access to sensitive files on the host device, which could lead to data leaks or breaches. The low complexity of this vulnerability suggests that it could be exploited by attackers with limited resources, increasing the urgency for organizations to address this issue promptly.
Organizations should address this vulnerability in their priority patch cycle, ensuring that all instances of Xcode are updated to version 12.4 or later. The potential blast radius of this vulnerability can be significant, especially in development environments where sensitive information may be stored within project files.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of Xcode prior to version 12.4 are affected by this vulnerability. It is crucial for users to update their installations to ensure that they are protected from potential exploitation.
Mitigation & Remediation
Organizations should prioritize upgrading to Xcode version 12.4 to remediate this vulnerability. If immediate updating is not feasible, implementing additional monitoring and security controls may help mitigate risk until the patch can be applied. Regular audits of development environments and access controls are also recommended to prevent unauthorized access.
Detection Guidance
Monitoring logs for unusual file access patterns or unexpected application behavior can help identify exploitation attempts. Security teams should also look for behavioral anomalies related to application execution in Xcode.
AppSecure Threat Intelligence Insight
CVE-2021-1800 serves as a reminder of the importance of thorough validation in software development. This vulnerability illustrates how path handling issues can lead to significant risks if not properly managed. Security teams should leverage this incident to review their development and security practices, ensuring that similar vulnerabilities are identified and addressed proactively.
For further insights on vulnerability management, organizations can explore our comprehensive resources on vulnerability management programs and implement robust security measures to protect their development environments.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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