ID CVE-2020-4037
Summary In OAuth2 Proxy from version 5.1.1 and less than version 6.0.0, users can provide a redirect address for the proxy to send the authenticated user to at the end of the authentication flow. This is expected to be the original URL that the user was trying to access. This redirect URL is checked within the proxy and validated before redirecting the user to prevent malicious actors providing redirects to potentially harmful sites. This has been fixed in version 6.0.0.
References
Vulnerable Configurations
  • cpe:2.3:a:oauth2_proxy_project:oauth2_proxy:5.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:oauth2_proxy_project:oauth2_proxy:5.1.1:*:*:*:*:*:*:*
CVSS
Base: 5.8
Impact:
Exploitability:
CWE CWE-601
CAPEC
  • Fake the Source of Data
    An adversary provides data under a falsified identity. The purpose of using the falsified identity may be to prevent traceability of the provided data or it might be an attempt by the adversary to assume the rights granted to another identity. One of the simplest forms of this attack would be the creation of an email message with a modified "From" field in order to appear that the message was sent from someone other than the actual sender. Results of the attack vary depending on the details of the attack, but common results include privilege escalation, obfuscation of other attacks, and data corruption/manipulation.
Access
VectorComplexityAuthentication
NETWORK MEDIUM NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL PARTIAL NONE
Last major update 29-06-2020 - 20:38
Published 29-06-2020 - 20:15
Last modified 07-07-2020 - 18:40
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