CVE-2023-51774
HIGHCVSS 8.4/10EPSS 0.23%
Last modified
CVE-2023-51774 is a high-severity vulnerability rated 8.4/10 on the CVSS scale. The json-jwt (aka JSON::JWT) gem 1.16.3 for Ruby sometimes allows bypass of identity checks via a sign/encryption confusion attack. For example, JWE can sometimes be used to bypass JSON::JWT.decode.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.
Description
The json-jwt (aka JSON::JWT) gem 1.16.3 for Ruby sometimes allows bypass of identity checks via a sign/encryption confusion attack. For example, JWE can sometimes be used to bypass JSON::JWT.decode.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Json-Jwt Project | Json-Jwt | 1.16.3 |
References
- https://github.com/P3ngu1nW/CVE_Request/blob/main/novjson-jwt.mdExploit, Third Party Advisory
- https://github.com/P3ngu1nW/CVE_Request/blob/main/novjson-jwt.mdExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2023-51774?
The json-jwt (aka JSON::JWT) gem 1.16.3 for Ruby sometimes allows bypass of identity checks via a sign/encryption confusion attack. For example, JWE can sometimes be used to bypass JSON::JWT.decode.
How severe is CVE-2023-51774?
CVE-2023-51774 has a CVSS score of 8.4/10 (HIGH severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.
How do I fix CVE-2023-51774?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2023-51774?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST