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authorcanyonknight <canyonknight@gmail.com>2012-06-23 20:40:11 +0200
committerLukas Fleischer <archlinux@cryptocrack.de>2012-06-24 10:59:23 +0200
commit2c93f0a98f0f6380fd07ea17fd16afa2c6e4925b (patch)
treedc5fd78a8cb46cd1475b45eeaa6544fbdeb23280 /web/html/account.php
parentbfb25807c49d3f35cdce91947a442455e1940392 (diff)
downloadaur-2c93f0a98f0f6380fd07ea17fd16afa2c6e4925b.tar.gz
aur-2c93f0a98f0f6380fd07ea17fd16afa2c6e4925b.tar.xz
Implement token system to fix CSRF vulnerabilities
Specially crafted pages can force authenticated users to unknowingly perform actions on the AUR website despite being on an attacker's website. This cross-site request forgery (CSRF) vulnerability applies to all POST data on the AUR. Implement a token system using a double submit cookie. Have a hidden form value on every page containing POST forms. Use the newly added check_token() to verify the token sent via POST matches the "AURSID" cookie value. Random nature of the token limits potential for CSRF. Signed-off-by: canyonknight <canyonknight@gmail.com> Signed-off-by: Lukas Fleischer <archlinux@cryptocrack.de>
Diffstat (limited to 'web/html/account.php')
-rw-r--r--web/html/account.php12
1 files changed, 7 insertions, 5 deletions
diff --git a/web/html/account.php b/web/html/account.php
index 387fd938..5a0ef50d 100644
--- a/web/html/account.php
+++ b/web/html/account.php
@@ -88,11 +88,13 @@ if (isset($_COOKIE["AURSID"])) {
} elseif ($action == "UpdateAccount") {
# user is submitting their modifications to an existing account
#
- process_account_form($atype, "edit", "UpdateAccount",
- in_request("U"), in_request("T"), in_request("S"),
- in_request("E"), in_request("P"), in_request("C"),
- in_request("R"), in_request("L"), in_request("I"),
- in_request("ID"));
+ if (check_token()) {
+ process_account_form($atype, "edit", "UpdateAccount",
+ in_request("U"), in_request("T"), in_request("S"),
+ in_request("E"), in_request("P"), in_request("C"),
+ in_request("R"), in_request("L"), in_request("I"),
+ in_request("ID"));
+ }
} else {