CVE-2023-20155 : What You Need to Know
Learn about CVE-2023-20155 found in Cisco Firepower Management Center Software, potentially leading to DoS conditions and unauthorized access. Mitigate risk with patches and security practices.
This CVE record pertains to a vulnerability identified in a logging API within Cisco Firepower Management Center (FMC) Software. The vulnerability could potentially be exploited by remote attackers to render the device unresponsive or initiate an unexpected reload. Furthermore, it could allow an attacker with valid user credentials but not Administrator privileges to access a system log file they would not typically be authorized to view.
Understanding CVE-2023-20155
This section delves into the details of the CVE-2023-20155 vulnerability.
What is CVE-2023-20155?
CVE-2023-20155 is a vulnerability found in a logging API in Cisco Firepower Management Center (FMC) Software. Exploiting this vulnerability could lead to a denial of service (DoS) condition due to the FMC CPU spiking to 100 percent utilization or causing the device to reload. The vulnerability arises from a lack of rate-limiting of requests directed at a specific API associated with an FMC log.
The Impact of CVE-2023-20155
The impact of this vulnerability could result in a DoS scenario where the affected device becomes unresponsive or experiences unexpected reloads. Attackers could leverage this vulnerability to disrupt the normal functioning of the FMC software.
Technical Details of CVE-2023-20155
Here are the technical specifics of CVE-2023-20155:
Vulnerability Description
The vulnerability in the logging API of Cisco Firepower Management Center (FMC) Software allows attackers to potentially cause the device to become unresponsive or trigger an unexpected reload.
Affected Systems and Versions
Multiple versions of Cisco Firepower Management Center software ranging from 6.2.3 to 7.3.1.1 are impacted by CVE-2023-20155.
Exploitation Mechanism
Exploiting this vulnerability involves sending a high rate of HTTP requests to the API associated with an FMC log, causing CPU spikes and device reloads if successful.
Mitigation and Prevention
In this section, we discuss measures to mitigate the risks associated with CVE-2023-20155.
Immediate Steps to Take
Immediate actions include applying relevant patches or updates provided by Cisco and closely monitoring network traffic for any suspicious activity.
Long-Term Security Practices
Long-term security practices such as regular security audits, network segmentation, and implementing access controls can enhance overall cybersecurity posture.
Patching and Updates
It is crucial to promptly apply patches and updates released by Cisco to address the vulnerability and prevent potential exploitation.
This detailed information provides insights into CVE-2023-20155, the impact it poses, and the necessary measures to mitigate the associated risks and enhance system security.