Fix: Return error when Fingerprint does not support TLS 1.3#3774
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Fix: Return error when Fingerprint does not support TLS 1.3#3774
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其实我也觉得只支持 TLSv1.2 的话有点怪，@gaukas 看一下？ |
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我已经在utls提交一个issue询问了 它确实是1.2 已经漏了证书让我服务器挨墙了 尝试捕获错误避免panic肯定是没问题的（ |
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Thank for the great investigation! |
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在尝试解决 #2896 的时候 稍微调试了一下，发现
uConn.HandshakeState.State13.EcdheKey竟然是nil, 调查后发现 utls 的安卓11指纹（实为OkHttp）是仅TLS 1.2的 (见 https://github.com/refraction-networking/utls/blob/23de245734c7c25b11200f8b5859c2114c032e51/u_parrots.go#L1595 因为它没有SupportedVersionsExtension扩展) 连TLS1.3都不是EcdheKey自然就是nil了 继续尝试调用其ECDH方法自然就导致了空指针panic我认为这是utls库的一个错误，因为OkHttp在安卓10就默认使用了TLS13 不过考虑到可能还有其他仅TLS12的指纹 被random到踩到坑 还是在Xray这边检测并返回错误 避免直接panic比较好
闲的话可以把服务器证书换成GTS签发的 然后用android指纹 会因为使用TLS12导致证书泄露 GFW看到GTS的证书就会把服务器IP阻断几分钟
我本地测试的时候发现的