CVE-2021-44467 : Vulnerability Insights and Analysis
Learn about CVE-2021-44467, a vulnerability in spx_restservice function allowing attackers to disrupt user sessions. Find mitigation steps and impacted versions.
This CVE-2021-44467 relates to a broken access control vulnerability in the KillDupUsr_func function of spx_restservice, potentially leading to Denial-of-Service (DoS) attacks on certain versions of Lanner Inc IAC-AST2500A standard firmware.
Understanding CVE-2021-44467
What is CVE-2021-44467?
CVE-2021-44467 denotes a broken access control flaw in a specific function of spx_restservice that could enable malicious actors to disrupt sessions of other users, culminating in a DoS situation.
The Impact of CVE-2021-44467
This vulnerability may allow unauthorized individuals to terminate active user sessions, resulting in service unavailability and potential disruptions to system operations.
Technical Details of CVE-2021-44467
Vulnerability Description
The vulnerability exists in the KillDupUsr_func function of spx_restservice, facilitating the unauthorized termination of user sessions.
Affected Systems and Versions
- Vendor: Lanner Inc
- Product: IAC-AST2500A
- Affected Version: 1.10.0
Exploitation Mechanism
The flaw can be exploited by attackers to terminate sessions of other users without proper authorization, potentially leading to service disruptions.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Implement network segmentation to restrict access to critical systems.
- Monitor for any unusual activities that may indicate unauthorized access.
Long-Term Security Practices
- Conduct regular security assessments and audits to identify vulnerabilities.
- Train employees on best security practices to prevent unauthorized access.
Patching and Updates
Ensure timely installation of firmware updates and security patches to mitigate the risk of exploitation.