CVE-2020-26938

In oauth2-server (aka node-oauth2-server) through 3.1.1, the value of the redirect_uri parameter received during the authorization and token request is checked against an incorrect URI pattern ("[a-zA-Z][a-zA-Z0-9+.-]+:") before making a redirection. This allows a malicious client to pass an XSS payload through the redirect_uri parameter while making an authorization request. NOTE: this vulnerability is similar to CVE-2020-7741.

CVSS v3.0 7.2 HIGH

7.2^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/oauthjs/node-oauth2-server/issues/637	Issue Tracking Third Party Advisory
https://github.com/oauthjs/node-oauth2-server/blob/91d2cbe70a0eddc53d72def96864e2de0fd41703/lib/validator/is.js#L12	Exploit Third Party Advisory
https://tools.ietf.org/html/rfc6749#section-3.1.2	Third Party Advisory
https://tools.ietf.org/html/rfc3986#section-3	Third Party Advisory
https://github.com/oauthjs/node-oauth2-server/blob/91d2cbe70a0eddc53d72def96864e2de0fd41703/lib/grant-types/authorization-code-grant-type.js#L143	Exploit Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:oauth2-server_project:oauth2-server:*:*:*:*:*:node.js:*:*

Information

Published : 2022-08-29 14:15

Updated : 2022-09-07 13:15

NVD link : CVE-2020-26938

Mitre link : CVE-2020-26938

JSON object : View

CWE

CWE-601

URL Redirection to Untrusted Site ('Open Redirect')

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Products Affected

oauth2-server_project

oauth2-server

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