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Fix open redirect if Adminer is accessible at //adminer.php%2F@ (thanks to Prakash Sharma)

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This commit is contained in:
Jakub Vrana 2020-05-11 11:49:46 +02:00
parent a9c1004232
commit 6a2de873e1
3 changed files with 10 additions and 2 deletions
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2
adminer/include/bootstrap.inc.php
View file

@ -84,7 +84,7 @@ include "../adminer/drivers/mysql.inc.php"; // must be included as last driver
define("SERVER", $_GET[DRIVER]); // read from pgsql=localhost
define("DB", $_GET["db"]); // for the sake of speed and size
define("ME", str_replace(":", "%3a", preg_replace('~^[^?]*/([^?]*).*~', '\1', $_SERVER["REQUEST_URI"])) . '?'
define("ME", str_replace(":", "%3a", preg_replace('~\?.*~', '', relative_uri())) . '?'
. (sid() ? SID . '&' : '')
. (SERVER !== null ? DRIVER . "=" . urlencode(SERVER) . '&' : '')
. (isset($_GET["username"]) ? "username=" . urlencode($_GET["username"]) . '&' : '')

9
adminer/include/functions.inc.php
View file

@ -721,12 +721,19 @@ function format_time($start) {
return lang('%.3f s', max(0, microtime(true) - $start));
}
/** Get relative REQUEST_URI
* @return string
*/
function relative_uri() {
return preg_replace('~^[^?]*/([^?]*)~', '\1', $_SERVER["REQUEST_URI"]);
}
/** Remove parameter from query string
* @param string
* @return string
*/
function remove_from_uri($param = "") {
return substr(preg_replace("~(?<=[?&])($param" . (SID ? "" : "|" . session_name()) . ")=[^&]*&~", '', "$_SERVER[REQUEST_URI]&"), 0, -1);
return substr(preg_replace("~(?<=[?&])($param" . (SID ? "" : "|" . session_name()) . ")=[^&]*&~", '', relative_uri() . "&"), 0, -1);
}
/** Generate page number for pagination

1
changes.txt
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@ -1,4 +1,5 @@
Adminer 4.7.7-dev:
Fix open redirect if Adminer is accessible at //adminer.php%2F@
Adminer 4.7.6 (released 2020-01-31):
Speed up alter table form (regression from 4.4.0)