Exception during scan: Invalid request for / (ForbiddenException)

[addaitrs]

Steps to reproduce

1. sudo -u www-data php -f /var/www/html/occ files:scan --unscanned --all

Expected behaviour

Update of external SMB

Actual behaviour

Errors with

Exception during scan: Invalid request for / (ForbiddenException)

Full error output is in the web server log section.

Server configuration

Operating system:
Ubuntu 17.10
Web server:
Apache2
Database:
MySQL
PHP version:
7.1
Nextcloud version: (see Nextcloud admin page)
13.0.0
Updated from an older Nextcloud/ownCloud or fresh install:
Fresh Install
Where did you install Nextcloud from:
Magic
Signing status:

Signing status

Login as admin user into your Nextcloud and access 
http://example.com/index.php/settings/integrity/failed 
paste the results here.

List of activated apps:

App list

If you have access to your command line run e.g.:
sudo -u www-data php occ app:list
from within your Nextcloud installation folder

Nextcloud configuration:

Config report

If you have access to your command line run e.g.:
sudo -u www-data php occ config:list system
from within your Nextcloud installation folder

or 

Insert your config.php content here. 
Make sure to remove all sensitive content such as passwords. (e.g. database password, passwordsalt, secret, smtp password, …)

Are you using external storage, if yes which one: smb3.1.1

Are you using encryption: no

Are you using an external user-backend, if yes which one: LDAP

LDAP configuration (delete this part if not used)

LDAP config

+-------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| hasMemberOfFilterSupport      | 1                                                                                                                                                                 |
| hasPagedResultSupport         |                                                                                                                                                                   |
| homeFolderNamingRule          |                                                                                                                                                                   |
| lastJpegPhotoLookup           | 0                                                                                                                                                                 |
| ldapAgentName                 | CN=NextCloudAdmin,OU=System Accounts,OU=client client,DC=client,DC=com                                                                                            |
| ldapAgentPassword             | ***                                                                                                                                                               |
| ldapAttributesForGroupSearch  |                                                                                                                                                                   |
| ldapAttributesForUserSearch   |                                                                                                                                                                   |
| ldapBackupHost                |                                                                                                                                                                   |
| ldapBackupPort                |                                                                                                                                                                   |
| ldapBase                      | DC=client,DC=com                                                                                                                                                  |
| ldapBaseGroups                | DC=client,DC=com                                                                                                                                                  |
| ldapBaseUsers                 | DC=client,DC=com                                                                                                                                                  |
| ldapCacheTTL                  | 600                                                                                                                                                               |
| ldapConfigurationActive       | 1                                                                                                                                                                 |
| ldapDefaultPPolicyDN          |                                                                                                                                                                   |
| ldapDynamicGroupMemberURL     |                                                                                                                                                                   |
| ldapEmailAttribute            | mail                                                                                                                                                              |
| ldapExperiencedAdmin          | 0                                                                                                                                                                 |
| ldapExpertUUIDGroupAttr       |                                                                                                                                                                   |
| ldapExpertUUIDUserAttr        |                                                                                                                                                                   |
| ldapExpertUsernameAttr        | sAMAccountName                                                                                                                                                    |
| ldapGidNumber                 | gidNumber                                                                                                                                                         |
| ldapGroupDisplayName          | cn                                                                                                                                                                |
| ldapGroupFilter               | (|(cn=client)(cn=client)(cn=client)(cn=client Drive))                                                                                                             |
| ldapGroupFilterGroups         | client;client;client;client Drive                                                                                                                                 |
| ldapGroupFilterMode           | 0                                                                                                                                                                 |
| ldapGroupFilterObjectclass    |                                                                                                                                                                   |
| ldapGroupMemberAssocAttr      | member                                                                                                                                                            |
| ldapHost                      | 1.1.1.1                                                                                                                                                           |
| ldapIgnoreNamingRules         |                                                                                                                                                                   |
| ldapLoginFilter               | (&(&(|(objectclass=person))(|(|(memberof=CN=client Drive,OU=Groups,OU=client client,DC=client,DC=com)(primaryGroupID=1709))))(|(sAMAccountName=%uid)))            |
| ldapLoginFilterAttributes     | sAMAccountName                                                                                                                                                    |
| ldapLoginFilterEmail          | 0                                                                                                                                                                 |
| ldapLoginFilterMode           | 0                                                                                                                                                                 |
| ldapLoginFilterUsername       | 1                                                                                                                                                                 |
| ldapNestedGroups              | 0                                                                                                                                                                 |
| ldapOverrideMainServer        |                                                                                                                                                                   |
| ldapPagingSize                | 500                                                                                                                                                               |
| ldapPort                      | 389                                                                                                                                                               |
| ldapQuotaAttribute            |                                                                                                                                                                   |
| ldapQuotaDefault              |                                                                                                                                                                   |
| ldapTLS                       | 0                                                                                                                                                                 |
| ldapUserDisplayName           | displayname                                                                                                                                                       |
| ldapUserDisplayName2          |                                                                                                                                                                   |
| ldapUserFilter                | (&(|(objectclass=person))(|(|(memberof=CN=client Drive,OU=Groups,OU=client client,DC=client,DC=com)(primaryGroupID=1709))))                                       |
| ldapUserFilterGroups          | client Drive                                                                                                                                                      |
| ldapUserFilterMode            | 0                                                                                                                                                                 |
| ldapUserFilterObjectclass     | person                                                                                                                                                            |
| ldapUuidGroupAttribute        | auto                                                                                                                                                              |
| ldapUuidUserAttribute         | auto                                                                                                                                                              |
| turnOffCertCheck              | 0                                                                                                                                                                 |
| turnOnPasswordChange          | 0                                                                                                                                                                 |
| useMemberOfToDetectMembership | 1                                                                                                                                                                 |
+-------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------+

Client configuration

Browser:

Operating system:

Logs

Web server error log

Web server error log

Scanning files for 8 users
Starting scan for user 1 out of 8 (User1)
Starting scan for user 2 out of 8 (User2)
Starting scan for user 3 out of 8 (User3)
Starting scan for user 4 out of 8 (User4)
Starting scan for user 5 out of 8 (User5)
Starting scan for user 6 out of 8 (User6)
Exception during scan: Invalid request for / (ForbiddenException)
#0 /var/www/html/apps/files_external/3rdparty/icewind/smb/src/NativeState.php(49): Icewind\SMB\Exception\Exception::fromMap(Array, 13, '/')
#1 /var/www/html/apps/files_external/3rdparty/icewind/smb/src/NativeState.php(61): Icewind\SMB\NativeState->handleError('/')
#2 /var/www/html/apps/files_external/3rdparty/icewind/smb/src/NativeState.php(91): Icewind\SMB\NativeState->testResult(false, 'smb://1.1.1...')
#3 /var/www/html/apps/files_external/3rdparty/icewind/smb/src/NativeShare.php(86): Icewind\SMB\NativeState->opendir('smb://1.1.1...')
#4 /var/www/html/apps/files_external/lib/Lib/Storage/SMB.php(231): Icewind\SMB\NativeShare->dir('/')
#5 /var/www/html/apps/files_external/lib/Lib/Storage/SMB.php(219): OCA\Files_External\Lib\Storage\SMB->shareMTime()
#6 /var/www/html/lib/private/Files/Storage/Common.php(181): OCA\Files_External\Lib\Storage\SMB->stat('')
#7 /var/www/html/lib/private/Files/Storage/Common.php(670): OC\Files\Storage\Common->filemtime('')
#8 /var/www/html/lib/private/Files/Storage/Wrapper/Wrapper.php(581): OC\Files\Storage\Common->getMetaData('')
#9 /var/www/html/lib/private/Files/Storage/Wrapper/Availability.php(463): OC\Files\Storage\Wrapper\Wrapper->getMetaData('')
#10 /var/www/html/lib/private/Files/Storage/Wrapper/Wrapper.php(581): OC\Files\Storage\Wrapper\Availability->getMetaData('')
#11 /var/www/html/lib/private/Files/Cache/Scanner.php(112): OC\Files\Storage\Wrapper\Wrapper->getMetaData('')
#12 /var/www/html/lib/private/Files/Cache/Scanner.php(150): OC\Files\Cache\Scanner->getData('')
#13 /var/www/html/lib/private/Files/Cache/Scanner.php(335): OC\Files\Cache\Scanner->scanFile('', 1, -1, NULL, true)
#14 /var/www/html/lib/private/Files/Cache/Scanner.php(508): OC\Files\Cache\Scanner->scan('', true, 1)
#15 /var/www/html/lib/private/Files/Cache/Scanner.php(525): OC\Files\Cache\Scanner->OC\Files\Cache\{closure}()
#16 /var/www/html/lib/private/Files/Cache/Scanner.php(509): OC\Files\Cache\Scanner->runBackgroundScanJob(Object(Closure), '')
#17 /var/www/html/lib/private/Files/Utils/Scanner.php(177): OC\Files\Cache\Scanner->backgroundScan()
#18 /var/www/html/apps/files/lib/Command/Scan.php(159): OC\Files\Utils\Scanner->backgroundScan('/User6')
#19 /var/www/html/apps/files/lib/Command/Scan.php(234): OCA\Files\Command\Scan->scanFiles('User6', '/User6', false, Object(Symfony\Component\Console\Output\ConsoleOutput), true)
#20 /var/www/html/3rdparty/symfony/console/Command/Command.php(264): OCA\Files\Command\Scan->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#21 /var/www/html/core/Command/Base.php(161): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#22 /var/www/html/3rdparty/symfony/console/Application.php(874): OC\Core\Command\Base->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#23 /var/www/html/3rdparty/symfony/console/Application.php(228): Symfony\Component\Console\Application->doRunCommand(Object(OCA\Files\Command\Scan), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#24 /var/www/html/3rdparty/symfony/console/Application.php(130): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#25 /var/www/html/lib/private/Console/Application.php(173): Symfony\Component\Console\Application->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#26 /var/www/html/console.php(90): OC\Console\Application->run()
#27 /var/www/html/occ(11): require_once('/var/www/html/c...')
#28 {main}
Starting scan for user 7 out of 8 (User7)
Starting scan for user 8 out of 8 (User8
)

Nextcloud log (data/nextcloud.log)

Nextcloud log

Insert your Nextcloud log here

Browser log

Browser log

[MorrisJobke]

Fixed with #9608 in 13.0.3