CVE-2022-20938 : Security Advisory and Response
Discover the details of CVE-2022-20938, a vulnerability in Cisco Firepower Management Center Software allowing unauthorized access to sensitive information. Learn how to mitigate and prevent exploitation.
A vulnerability in the module import function of the administrative interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to view sensitive information.
Understanding CVE-2022-20938
This CVE-2022-20938 affects Cisco Firepower Management Center (FMC) Software and has a base score of 4.3, categorizing it as a MEDIUM severity vulnerability.
What is CVE-2022-20938?
CVE-2022-20938 is a vulnerability in the module import function of the administrative interface of Cisco FMC Software. It occurs due to insufficient validation of the XML syntax when importing a module, allowing an attacker to view sensitive information by supplying a specially crafted XML file.
The Impact of CVE-2022-20938
If exploited successfully, this vulnerability could lead to unauthorized access to sensitive data that would normally not be uncovered, posing a risk to the confidentiality of the affected systems.
Technical Details of CVE-2022-20938
The vulnerability is classified as an Improper Restriction of XML External Entity Reference (CWE-611).
Vulnerability Description
The flaw allows an authenticated, remote attacker to access sensitive information by exploiting the inadequately validated XML syntax during the module import function.
Affected Systems and Versions
Cisco Firepower Management Center (FMC) Software versions from 6.1.0 to 7.1.0.2 are impacted by this vulnerability.
Exploitation Mechanism
An attacker can exploit this vulnerability by providing a specially crafted XML file to the module import function.
Mitigation and Prevention
Given the severity of this vulnerability, it is crucial to take immediate steps to mitigate the risk and prevent exploitation.
Immediate Steps to Take
Organizations using the affected versions should apply the necessary security updates or patches provided by Cisco to address the vulnerability and enhance system security.
Long-Term Security Practices
Implementing strict input validations, monitoring for unauthorized access attempts, and enforcing the principle of least privilege can help bolster the overall security posture of the system.
Patching and Updates
Ensure timely installation of security patches and updates released by Cisco for the affected versions to remediate the vulnerability.