CVE-2022-20956 Explained : Impact and Mitigation
Learn about CVE-2022-20956, a vulnerability in Cisco Identity Services Engine Software allowing unauthorized access to system files. Find mitigation and prevention details here.
This article provides detailed information about CVE-2022-20956, a vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) that could allow an authenticated, remote attacker to bypass authorization and access system files.
Understanding CVE-2022-20956
CVE-2022-20956 is a vulnerability in Cisco ISE that stems from improper access control in the web-based management interface, enabling attackers to list, download, and delete certain files.
What is CVE-2022-20956?
The vulnerability in Cisco ISE allows authenticated remote attackers to bypass authorization and access unauthorized system files through crafted HTTP requests.
The Impact of CVE-2022-20956
Exploiting this vulnerability could lead to unauthorized access to sensitive files, potentially compromising the confidentiality of the system.
Technical Details of CVE-2022-20956
This section delves into the technical aspects of the CVE, including the vulnerability description, affected systems, and the exploitation mechanism.
Vulnerability Description
The vulnerability arises from improper access control in the web-based management interface of affected Cisco ISE devices, enabling attackers to perform unauthorized file operations.
Affected Systems and Versions
Cisco Identity Services Engine Software versions 3.1.0, 3.1.0 p1, 3.1.0 p3, 3.1.0 p4, and 3.2.0 are affected by this vulnerability.
Exploitation Mechanism
Attackers exploit this vulnerability by sending crafted HTTP requests to the affected device, leveraging improper access control to gain unauthorized file access.
Mitigation and Prevention
In this section, we discuss immediate steps to take and long-term security practices to mitigate the risk of exploitation.
Immediate Steps to Take
Organizations should apply software updates released by Cisco to address the vulnerability promptly. Additionally, monitoring for unauthorized file access is crucial.
Long-Term Security Practices
Implementing strict access controls, conducting regular security assessments, and educating users on secure practices can enhance long-term security resilience.
Patching and Updates
Regularly update Cisco ISE software to the latest versions that include security patches to prevent exploitation of known vulnerabilities.