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Fix public link resharing #3023

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merged 1 commit into from
Jul 1, 2022
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kobergj
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@kobergj kobergj commented Jul 1, 2022

See here owncloud/ocis#3881 or here owncloud/ocis#4061

Basically privilege escalation was possible through public links and resharing

Signed-off-by: jkoberg <jkoberg@owncloud.com>
@kobergj kobergj requested review from a team, labkode, ishank011 and glpatcern as code owners July 1, 2022 09:45
@butonic
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butonic commented Jul 1, 2022

hm, shouldn't the public link share manager prevent elevating permissions? With this approach you are just shadowing a broken implementation, aren't you?

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kobergj commented Jul 1, 2022

@butonic I sticked to same implementation as for normal shares. Permissions are checked within the ocs handler. As of now the share manager doesn't care about permissions.

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butonic commented Jul 1, 2022

YOLO 😞

@butonic butonic merged commit 7c36bd5 into cs3org:edge Jul 1, 2022
@kobergj kobergj deleted the FixPubliclinkResharing branch July 1, 2022 13:22
kobergj added a commit that referenced this pull request Jul 7, 2022
Signed-off-by: jkoberg <jkoberg@owncloud.com>
kobergj added a commit to kobergj/reva that referenced this pull request Jul 11, 2022
Signed-off-by: jkoberg <jkoberg@owncloud.com>
kobergj added a commit to kobergj/reva that referenced this pull request Jul 14, 2022
@kobergj kobergj mentioned this pull request Dec 19, 2022
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2 participants