Vulnerability Details CVE-2017-18924
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 41.7%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
References
- https://codeburst.io/missing-the-point-in-securing-oauth-2-0-83968708b467
- https://github.com/oauthjs/node-oauth2-server/issues/637
- https://github.com/oauthjs/node-oauth2-server/pull/452
- https://tools.ietf.org/html/draft-ietf-oauth-security-topics-15
- https://tools.ietf.org/html/rfc7636
- https://codeburst.io/missing-the-point-in-securing-oauth-2-0-83968708b467
- https://github.com/oauthjs/node-oauth2-server/issues/637
- https://github.com/oauthjs/node-oauth2-server/pull/452
- https://tools.ietf.org/html/draft-ietf-oauth-security-topics-15
- https://tools.ietf.org/html/rfc7636
Products affected by CVE-2017-18924
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cpe:2.3:a:oauth2-server_project:oauth2-server:-
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cpe:2.3:a:oauth2-server_project:oauth2-server:2.2.2
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cpe:2.3:a:oauth2-server_project:oauth2-server:2.3.0
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cpe:2.3:a:oauth2-server_project:oauth2-server:2.4.0
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cpe:2.3:a:oauth2-server_project:oauth2-server:2.4.1
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cpe:2.3:a:oauth2-server_project:oauth2-server:3.0.0
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cpe:2.3:a:oauth2-server_project:oauth2-server:3.0.1
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cpe:2.3:a:oauth2-server_project:oauth2-server:3.0.2
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cpe:2.3:a:oauth2-server_project:oauth2-server:3.1.0
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cpe:2.3:a:oauth2-server_project:oauth2-server:3.1.1