save 40 bytes (64-bit), or 16 bytes (32-bit) per data_* element
at the cost of going through indirect function pointer to execute
methods. At runtime, the reset() method is most used among them.
config settings were not being copied into proxy request context
x-ref:
"mod_proxy's “proxy.forwarded” option seems ignored when used with mod_auth."
https://redmine.lighttpd.net/issues/2902
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)
- this fixes various use-after-free scenarios (reported by Or Peles of
VDOO): when parse_single_header stores pointers to header values in
con->request, those pointers are not updated if the header value is
reallocated when folded header lines are appended.
- also remove trailing white-space from folded lines
Provide means to encode redirect and rewrite backreference substitutions
%{encb64u:...} encode to base64url characters (no-padding)
%{decb64u:...} decode from base64url characters
support up to 19 regex saved matches ($1 - $9 and ${1} - ${19})
for use in replacement substitutions.
lighttpd config conditionals are still limited to 9 matches (%1 - %9)
Security: potential path traversal of a single directory above the alias
target with a specific mod_alias config where the alias which is matched
does not end in '/', but alias target filesystem path does end in '/'.
e.g. server.docroot = "/srv/www/host/HOSTNAME/docroot"
alias.url = ( "/img" => "/srv/www/hosts/HOSTNAME/images/" )
If a malicious URL "/img../" were passed, the request would be
for directory "/srv/www/hosts/HOSTNAME/images/../" which would resolve
to "/srv/www/hosts/HOSTNAME/". If mod_dirlisting were enabled, which
is not the default, this would result in listing the contents of the
directory above the alias. An attacker might also try to directly
access files anywhere under that path, which is one level above the
intended aliased path.
credit: Orange Tsai(@orange_8361) from DEVCORE
fix memleak in mod_fastcgi when FastCGI is used for both authentication
and response on the same request
(thx rschmid)
x-ref:
"Memory leak if two fcgi calls with one request (authentication and response)"
https://redmine.lighttpd.net/issues/2894
