CVE-2021-44776 Explained : Impact and Mitigation
Learn about CVE-2021-44776, a vulnerability in Lanner Inc IAC-AST2500A firmware allowing unauthorized access to critical functionalities. Find mitigation steps and long-term prevention methods.
A broken access control vulnerability in the SubNet_handler_func function of spx_restservice allows attackers to change security access rights to KVM and Virtual Media functionalities for Lanner Inc IAC-AST2500A standard firmware version 1.10.0.
Understanding CVE-2021-44776
This CVE involves a broken access control vulnerability that impacts specific firmware.
What is CVE-2021-44776?
The vulnerability allows unauthorized access to critical functionalities within certain firmware versions.
The Impact of CVE-2021-44776
The vulnerability may lead to unauthorized changes in security access, potentially compromising system integrity.
Technical Details of CVE-2021-44776
The CVE provides detailed insight into the vulnerability and its consequences.
Vulnerability Description
The issue lies in the SubNet_handler_func function of spx_restservice, enabling attackers to manipulate security access rights.
Affected Systems and Versions
- Vendor: Lanner Inc
- Product: IAC-AST2500A
- Vulnerable Version: 1.10.0
Exploitation Mechanism
Attackers can exploit the vulnerability to alter security access rights to KVM and Virtual Media functionalities.
Mitigation and Prevention
Steps to address and prevent potential exploitation.
Immediate Steps to Take
- Implement access controls to restrict unauthorized access to critical functionalities.
- Monitor and log changes in security access settings regularly.
Long-Term Security Practices
- Regularly update firmware to patch known vulnerabilities.
- Conduct security assessments to identify and address access control weaknesses.
Patching and Updates
Apply firmware updates provided by the vendor to address and mitigate the access control vulnerability.