Replace separators between folded header lines in-place using spaces
and then process the single header line.
(Reverts change which replaces folding whitespace with single space)
Acknowledgement: Or Peles of VDOO reference: VD-0871, VD-0872, VD-0873
(thx Or Peles)
server.http-parseopts = ( ... ) URL normalization options
Note: *not applied* to CONNECT method
Note: In a future release, URL normalization likely enabled by default
(normalize URL, reject control chars, remove . and .. path segments)
To prepare for this change, lighttpd.conf configurations should
explicitly select desired behavior by enabling or disabling:
server.http-parseopts = ( "url-normalize" => "enable", ... )
server.http-parseopts = ( "url-normalize" => "disable" )
x-ref:
"lighttpd ... compares URIs to patterns in the (1) url.redirect and (2) url.rewrite configuration settings before performing URL decoding, which might allow remote attackers to bypass intended access restrictions, and obtain sensitive information or possibly modify data."
https://www.cvedetails.com/cve/CVE-2008-4359/
"Rewrite/redirect rules and URL encoding"
https://redmine.lighttpd.net/issues/1720
Glenn Strauss
Stefan Bühler