Authentication Bypass Vulnerability in Gitea by Gitea
CVE-2021-45331

9.8CRITICAL

Key Information:

Vendor

Gitea

Status
Gitea
Vendor
CVE Published:
9 February 2022

What is CVE-2021-45331?

An authentication bypass vulnerability exists in Gitea versions prior to 1.5.0. This flaw allows a malicious actor to exploit the two-factor authentication (2FA) mechanism, enabling them to submit the Time-based One-Time Password (TOTP) code multiple times without proper validation. As a result, potentially unauthorized users may gain elevated privileges, compromising the security of the affected installations.

References

https://blog.gitea.io/2018/08/gitea-1.5.0-is-released/
x_refsource_MISC
https://github.com/go-gitea/gitea/pull/3878
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2021-45331 : Authentication Bypass Vulnerability in Gitea by Gitea