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fix(authentication): Only verify each hash once #36048

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Merged
nickvergessen merged 4 commits into from
Jan 10, 2023
Merged

fix(authentication): Only verify each hash once #36048

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55d8aec
fix(authentication): Only verify each hash once
nickvergessen Jan 9, 2023
c5bb196
fix(authentication): Invert the logic to the original intention
nickvergessen Jan 9, 2023
28b18d5
fix(authentication): Only hash the new password when needed
nickvergessen Jan 9, 2023
2fb4dac
fix(authentication): Update the token when the hash is null or can no…
nickvergessen Jan 9, 2023
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fix(authentication): Update the token when the hash is null or can no… 
…t be verified

Signed-off-by: Joas Schilling <[email protected]>
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@nickvergessen
nickvergessen committed Jan 9, 2023
commit 2fb4dac7adbafc8c2896bf72eb158fb90abf05a2
25 changes: 21 additions & 4 deletions lib/private/Authentication/Token/PublicKeyTokenProvider.php
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Original file line number Diff line number Diff line change
Expand Up @@ -448,9 +448,28 @@ public function updatePasswords(string $uid, string $password) {
// Update the password for all tokens
$tokens = $this->mapper->getTokenByUser($uid);
$newPasswordHash = null;
$verifiedHashes = [];

/**
* - true: The password hash could not be verified anymore
* and the token needs to be updated with the newly encrypted password
* - false: The hash could still be verified
* - missing: The hash needs to be verified
*/
$hashNeedsUpdate = [];

foreach ($tokens as $t) {
if ($t->getPasswordHash() === null || !isset($verifiedHashes[$t->getPasswordHash()]) || !$this->hasher->verify(sha1($password) . $password, $t->getPasswordHash())) {
if (!isset($hashNeedsUpdate[$t->getPasswordHash()])) {
if ($t->getPasswordHash() === null) {
$hashNeedsUpdate[$t->getPasswordHash() ?: ''] = true;
} elseif (!$this->hasher->verify(sha1($password) . $password, $t->getPasswordHash())) {
$hashNeedsUpdate[$t->getPasswordHash() ?: ''] = true;
} else {
$hashNeedsUpdate[$t->getPasswordHash() ?: ''] = false;
}
}
$needsUpdating = $hashNeedsUpdate[$t->getPasswordHash() ?: ''] ?? true;

if ($needsUpdating) {
if ($newPasswordHash === null) {
$newPasswordHash = $this->hashPassword($password);
}
Expand All @@ -460,8 +479,6 @@ public function updatePasswords(string $uid, string $password) {
$t->setPasswordHash($newPasswordHash);
$t->setPasswordInvalid(false);
$this->updateToken($t);
} else {
$verifiedHashes[$t->getPasswordHash() ?: ''] = true;
}
}
}
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