[Webkit-unassigned] [Bug 158768] New: CR alone in response header is treated as end-of-line.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=158768

            Bug ID: 158768
           Summary: CR alone in response header is treated as end-of-line.
    Classification: Unclassified
           Product: WebKit
           Version: Safari 9
          Hardware: Macintosh
                OS: OS X 10.11
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sha7me1on.mach at gmail.com

Safari treat CR alone in response header as end-of-line.

[nginx.conf]
add_header X-header 'foo\rSet-Cookie: var=exploit';

This will set the cookie's value.

In rfc2616, CR alone in headers is not spec'd.
But I think it is difficult for application developers to recognize needs to escape CR alone in response header referencing rfc2616.
I think it is better to disallow CR alone as end-of-line.
f
I've also opened this issue in chromium bug-trackers.
https://bugs.chromium.org/p/chromium/issues/detail?id=619579

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