要点
- CVE-2020-4037 は github.com/oauth2-proxy/oauth2-proxy, oauth2 proxy (oauth2 proxy project) に影響する深刻度「中」 (CVSS 5.4) の脆弱性です。
- 今後30日間に悪用される確率（EPSS）：0.90%（全脆弱性の 59.6% より高い）。
- 対処：6.0.0 以降に更新してください。
概要
Impact
As 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.
NVD の説明
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.
github.com/oauth2-proxy/oauth2-proxy のその他の脆弱性
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