The generated JWT access token does not validate if the signature is valid so the token can be modified and requests are accepted; even removing the signature from the token works.
- Generate tokens by bypassing existing mechanisms.
- Modify tokens allowing requests to be sent outside the application cycle.
Generate a token with random components without sensitive information and always validate that the integrity of the token is maintained (signature verification, signature).
Unauthorized attacker with access to a token.
Expected Remediation Time
Default score using CVSS 3.1. It may change depending on the context of the src.
- Attack vector: N
- Attack complexity: H
- Privileges required: N
- User interaction: N
- Scope: U
- Confidentiality: N
- Integrity: L
- Availability: N
- Exploit code madurity: U
- Remediation level: U
- Report confidence: C
- Vector string: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:U/RC:C
- Base: 3.7
- Temporal: 3.4
- Base: Low
- Temporal: Low
Search for vulnerabilities in your apps for free with our automated security testing! Start your 21-day free trial and discover the benefits of our Continuous Hacking Machine Plan. If you prefer a full service that includes the expertise of our ethical hackers, don't hesitate to contact us for our Continuous Hacking Squad Plan.