漏洞信息
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Vulnerability Title
request smuggling in async-h1
Vulnerability Description
async-h1 is an asynchronous HTTP/1.1 parser for Rust (crates.io). There is a request smuggling vulnerability in async-h1 before version 2.3.0. This vulnerability affects any webserver that uses async-h1 behind a reverse proxy, including all such Tide applications. If the server does not read the body of a request which is longer than some buffer length, async-h1 will attempt to read a subsequent request from the body content starting at that offset into the body. One way to exploit this vulnerability would be for an adversary to craft a request such that the body contains a request that would not be noticed by a reverse proxy, allowing it to forge forwarded/x-forwarded headers. If an application trusted the authenticity of these headers, it could be misled by the smuggled request. Another potential concern with this vulnerability is that if a reverse proxy is sending multiple http clients' requests along the same keep-alive connection, it would be possible for the smuggled request to specify a long content and capture another user's request in its body. This content could be captured in a post request to an endpoint that allows the content to be subsequently retrieved by the adversary. This has been addressed in async-h1 2.3.0 and previous versions have been yanked.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
Vulnerability Type
HTTP请求的解释不一致性(HTTP请求私运)
Vulnerability Title
Http-rs Async-h1 环境问题漏洞
Vulnerability Description
Http-rs Async-h1是Http-rs团队的一个基于Rust语言的异步Http解析器。 async-h1 2.3.0之前版本存在安全漏洞,该漏洞源于存在请求走私漏洞。此漏洞影响任何在反向代理后使用async-h1的web服务器,包括所有此类Tide应用程序。如果服务器没有读取超过缓冲区长度的请求体,async-h1将尝试从该偏移量开始的请求体内容中读取后续请求。
CVSS Information
N/A
Vulnerability Type
N/A