Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The Opportunistic Encryption feature of HTTP2 (RFC 8164) allows a connection to be transparently upgraded to TLS while retaining the visual properties of an HTTP connection, including being same-origin with unencrypted connections on port 80. However, if a second encrypted port on the same IP address (e.g. port 8443) did not opt-in to opportunistic encryption; a network attacker could forward a connection from the browser to port 443 to port 8443, causing the browser to treat the content of port 8443 as same-origin with HTTP. This was resolved by disabling the Opportunistic Encryption feature, which had low usage. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Mozilla Firefox 访问控制错误漏洞
Vulnerability Description
Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox 存在访问控制错误漏洞，该漏洞源于HTTP2 (RFC 8164) 的机会加密功能允许将连接透明地升级到 TLS，同时保留 HTTP 连接的视觉属性，包括与端口 80 上的未加密连接同源。相同的 IP 地址（例如端口 8443）没有选择加入机会加密；网络攻击者可以将浏览器到 443 端口的连接转发到 8443 端口，从而导致浏览器将 8443 端口的内容视为与 HTTP 同源。这是通过禁用使用率
CVSS Information
N/A
Vulnerability Type
N/A