CVE-2021-45925 : What You Need to Know
Learn about CVE-2021-45925, a medium severity vulnerability in Lanner Inc IAC-AST2500A firmware version 1.10.0 allowing attackers to guess valid user names. Find mitigation steps and system protection measures.
CVE-2021-45925, also known as Username Enumeration, is a security vulnerability that allows an attacker to guess legitimate user names registered in the BMC, affecting Lanner Inc IAC-AST2500A standard firmware version 1.10.0.
Understanding CVE-2021-45925
What is CVE-2021-45925?
The vulnerability involves observable discrepancies in the login process, enabling attackers to identify valid user names within the BMC system.
The Impact of CVE-2021-45925
The impact of this CVE includes a medium severity base score of 5.3, with low confidentiality impact and no integrity or availability impact.
Technical Details of CVE-2021-45925
Vulnerability Description
- Attackers can exploit observable discrepancies during login to guess legitimate usernames.
Affected Systems and Versions
- Vendor: Lanner Inc
- Product: IAC-AST2500A
- Affected Version: 1.10.0
Exploitation Mechanism
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
Mitigation and Prevention
Immediate Steps to Take
- Implement strong and unique user names in the BMC.
- Regularly monitor login attempts for any unusual activity.
Long-Term Security Practices
- Conduct regular security assessments and audits on BMC systems.
- Train staff on secure login practices and the importance of unique usernames.
Patching and Updates
- Check for firmware updates from Lanner Inc to address the vulnerability.