CVE-2017-18924

Public Exploit

Description

oauth2-server (aka node-oauth2-server) through 3.1.1 implements OAuth 2.0 without PKCE. It does not prevent authorization code injection. This is similar to CVE-2020-7692. NOTE: the vendor states 'As RFC7636 is an extension, I think the claim in the Readme of "RFC 6749 compliant" is valid and not misleading and I also therefore wouldn't describe this as a "vulnerability" with the library per se.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.19%
Third-Party Advisory codeburst.io Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory ietf.org Third-Party Advisory ietf.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://tools.ietf.org/html/rfc7636 third party advisory
https://tools.ietf.org/html/draft-ietf-oauth-security-topics-15 third party advisory exploit
https://codeburst.io/missing-the-point-in-securing-oauth-2-0-83968708b467 third party advisory
https://github.com/oauthjs/node-oauth2-server/issues/637 third party advisory exploit
https://github.com/oauthjs/node-oauth2-server/pull/452 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2017-18924?
CVE-2017-18924 has been scored as a high severity vulnerability.
How to fix CVE-2017-18924?
To fix CVE-2017-18924, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-18924 being actively exploited in the wild?
It is possible that CVE-2017-18924 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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