CVE-2025-47269
HighSummary
code-server umożliwia uruchamianie VS Code na dowolnej maszynie z dostępem przez przeglądarkę. Przed wersją 4.99.4, złośliwie skonstruowany URL z użyciem podścieżki proxy może umożliwić atakującemu dostęp do tokena sesji użytkownika.
Risk Assessment
Brak odpowiedniej walidacji portu dla żądania proxy może prowadzić do przekierowania na dowolną domenę, co stwarza ryzyko kradzieży tokenów sesji i pełnego dostępu do systemu przez atakującego.
Recommendation
Zaleca się aktualizację code-server do wersji 4.99.4 lub nowszej oraz unikanie klikania w złośliwie skonstruowane linki, które mogą prowadzić do instancji code-server.
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Original NVD description (English source)
code-server runs VS Code on any machine anywhere through browser access. Prior to version 4.99.4, a maliciously crafted URL using the proxy subpath can result in the attacker gaining access to the session token. Failure to properly validate the port for a proxy request can result in proxying to an arbitrary domain. The malicious URL `https://<code-server>/proxy/[email protected]/path` would be proxied to `[email protected]/path` where the attacker could exfiltrate a user's session token. Any user who runs code-server with the built-in proxy enabled and clicks on maliciously crafted links that go to their code-server instances with reference to /proxy. Normally this is used to proxy local ports, however the URL can reference the attacker's domain instead, and the connection is then proxied to that domain, which will include sending cookies. With access to the session cookie, the attacker can then log into code-server and have full access to the machine hosting code-server as the user running co
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

