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| author | Carl Schwan <carl@carlschwan.eu> | 2021-10-21 16:57:07 +0200 |
|---|---|---|
| committer | Carl Schwan <carl@carlschwan.eu> | 2021-10-21 17:11:52 +0200 |
| commit | 9408f8ae6994666b685f5e2de588f9b2a79a00ed (patch) | |
| tree | 10ab0ee16994d20e21931a2774cfe38d1a12f752 /lib/private/Files | |
| parent | c5405befcfeb5dcc0d8cce85d5ea8466fed3c268 (diff) | |
| download | nextcloud-server-9408f8ae6994666b685f5e2de588f9b2a79a00ed.tar.gz nextcloud-server-9408f8ae6994666b685f5e2de588f9b2a79a00ed.zip | |
Fix security issues when copying groupfolder with advanced ACL
Using advanced ACL, it is possible that an user has access to a
directory but not to a subdirectory, so the copying use
Common::copyFromStorage instead of Local::copyFromStorage.
Fix https://github.com/nextcloud/groupfolders/issues/1692
Signed-off-by: Carl Schwan <carl@carlschwan.eu>
Diffstat (limited to 'lib/private/Files')
| -rw-r--r-- | lib/private/Files/Storage/Local.php | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/private/Files/Storage/Local.php b/lib/private/Files/Storage/Local.php index 870217db20f..13f1a6f2ec4 100644 --- a/lib/private/Files/Storage/Local.php +++ b/lib/private/Files/Storage/Local.php @@ -525,7 +525,10 @@ class Local extends \OC\Files\Storage\Common { * @return bool */ public function copyFromStorage(IStorage $sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime = false) { - if ($sourceStorage->instanceOfStorage(Local::class)) { + // Don't treat ACLStorageWrapper like local storage where copy can be done directly. + // Instead use the slower recursive copying in php from Common::copyFromStorage with + // more permissions checks. + if ($sourceStorage->instanceOfStorage(Local::class) && !$sourceStorage->instanceOfStorage('OCA\GroupFolders\ACL\ACLStorageWrapper')) { if ($sourceStorage->instanceOfStorage(Jail::class)) { /** * @var \OC\Files\Storage\Wrapper\Jail $sourceStorage |