Description
The use of single-factor authentication can lead to unnecessary risk of compromise when compared with the benefits of a dual-factor authentication scheme.
While the use of multiple authentication schemes is simply piling on more complexity on top of authentication, it is inestimably valuable to have such measures of redundancy. The use of weak, reused, and common passwords is rampant on the internet. Without the added protection of multiple authentication schemes, a single mistake can result in the compromise of an account. For this reason, if multiple schemes are possible and also easy to use, they should be implemented and required.
Modes of Introduction:
– Architecture and Design
Likelihood of Exploit: High
Related Weaknesses
CWE-287
CWE-654
CWE-309
Consequences
Access Control: Bypass Protection Mechanism
If the secret in a single-factor authentication scheme gets compromised, full authentication is possible.
Potential Mitigations
Phase: Architecture and Design
Description:
Use multiple independent authentication schemes, which ensures that — if one of the methods is compromised — the system itself is still likely safe from compromise.
CVE References
