CVE-2024-8122
Potential brute force vulnerability due to non-expiring SMS OTPs
- State
- Published
- Severity
- 5.9 Medium
- Published
- Oct 8, 2026
- Updated
- Oct 8, 2026
- Reserved
- Aug 23, 2024
Description
The WSO2 Identity Server fails to enforce a default expiry time for SMS One-Time Passwords (OTPs) used in multi-factor authentication (MFA). This allows unused OTPs to remain valid indefinitely, presenting an opportunity for malicious actors to conduct brute force attacks by repeatedly guessing the OTP.
The absence of automatic expiration for OTPs grants attackers an unlimited timeframe to attempt guessing the correct code. A successful brute force attack can lead to an MFA bypass, resulting in the unauthorized takeover of a user's account and compromising the security and privacy of both the individual and the system.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.9 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N | WSO2 |
Weaknesses
- CWE-613 Insufficient Session Expiration
Affected Products
| Product | Versions |
|---|---|
WSO2 Identity ServerWSO2 |
|
References
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.