GO-2022-0520

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Source

https://pkg.go.dev/vuln/GO-2022-0520

Import Source

https://vuln.go.dev/ID/GO-2022-0520.json

JSON Data

https://api.osv.dev/v1/vulns/GO-2022-0520

Aliases

Published

2022-07-28T17:23:05Z

Modified

2024-05-20T16:03:47Z

Summary

Exposure of client IP addresses in net/http

Details

Client IP adresses may be unintentionally exposed via X-Forwarded-For headers.

When httputil.ReverseProxy.ServeHTTP is called with a Request.Header map containing a nil value for the X-Forwarded-For header, ReverseProxy sets the client IP as the value of the X-Forwarded-For header, contrary to its documentation.

In the more usual case where a Director function sets the X-Forwarded-For header value to nil, ReverseProxy leaves the header unmodified as expected.

References

Credits

- Christian Mehlmauer

Affected packages

Go / stdlib

Package

Name: stdlib; View open source insights on deps.dev
Purl: pkg:golang/stdlib

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.17.12

Introduced

1.18.0-0

Fixed

1.18.4

Ecosystem specific

{
    "imports": [
        {
            "path": "net/http",
            "symbols": [
                "Header.Clone"
            ]
        }
    ]
}