CVE-2021-30497 : Vulnerability Insights and Analysis
Learn about CVE-2021-30497, a critical Absolute Path Traversal vulnerability in Ivanti Avalanche (Premise) 6.3.2 allowing unauthorized access to sensitive files. Find out how to mitigate this security risk.
This article provides insights into CVE-2021-30497, a vulnerability in Ivanti Avalanche (Premise) 6.3.2 that allows remote unauthenticated users to read arbitrary files through Absolute Path Traversal.
Understanding CVE-2021-30497
Ivanti Avalanche (Premise) 6.3.2 is impacted by a security flaw that enables unauthorized users to access sensitive information.
What is CVE-2021-30497?
The vulnerability in Ivanti Avalanche (Premise) 6.3.2 allows remote unauthenticated attackers to read arbitrary files by exploiting Absolute Path Traversal. The flaw lies in the imageFilePath parameter processed by the /AvalancheWeb/image endpoint, as it fails to verify if the path is within the image folder's scope.
The Impact of CVE-2021-30497
By exploiting this vulnerability, malicious actors can retrieve confidential data, posing a significant risk to the security and integrity of affected systems.
Technical Details of CVE-2021-30497
The following details outline the technical aspects of CVE-2021-30497.
Vulnerability Description
Ivanti Avalanche (Premise) 6.3.2 is susceptible to Absolute Path Traversal, allowing attackers to access arbitrary files by manipulating the imageFilePath parameter.
Affected Systems and Versions
The vulnerability affects Ivanti Avalanche (Premise) version 6.3.2.
Exploitation Mechanism
Attackers can exploit the Absolute Path Traversal vulnerability by not verifying the imageFilePath parameter within the image folder's boundaries.
Mitigation and Prevention
To protect systems from CVE-2021-30497, it is crucial to implement the following mitigation strategies.
Immediate Steps to Take
- Apply security patches provided by Ivanti to address the vulnerability promptly.
- Monitor system logs for any suspicious activity indicating exploitation attempts.
Long-Term Security Practices
- Conduct regular security assessments and penetration testing to identify and remediate vulnerabilities proactively.
- Educate users on safe browsing practices and the importance of cybersecurity hygiene.
Patching and Updates
Stay informed about security updates released by Ivanti for Ivanti Avalanche (Premise) to mitigate the risk posed by CVE-2021-30497.