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CWE

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CVE-2016-9464

Published: Mar 28, 2017

Modified: Aug 6, 2024

PUBLISHED

Description

Nextcloud Server before 9.0.54 and 10.0.0 suffers from an improper authorization check on removing shares. The Sharing Backend as implemented in Nextcloud does differentiate between shares to users and groups. In case of a received group share, users should be able to unshare the file to themselves but not to the whole group. The previous API implementation simply unshared the file to all users in the group.

Vendor	Product	Versions
n/a	Nextcloud Server Nextcloud Server before 9.0.54 and 10.0.0	affected `Nextcloud Server Nextcloud Server before 9.0.54 and 10.0.0`

Weaknesses (CWE)

References

https://github.com/nextcloud/server/commit/7289cb5ec0b812992ab0dfb889744b94bc0994f0

x_refsource_MISC

https://github.com/nextcloud/server/commit/3387e5d00fcf6b2ea6b285a091e5743f545e7202

x_refsource_MISC

https://github.com/nextcloud/server/commit/a5471b4a3e3f30e99e4de39c97c0c3b3c2f1618f

x_refsource_MISC

https://github.com/nextcloud/server/commit/e2c4f4f9aa11bc92e8f2212cce73841b922187e8

x_refsource_MISC

vdb-entry

x_refsource_BID

https://nextcloud.com/security/advisory/?id=nc-sa-2016-007

x_refsource_MISC

https://hackerone.com/reports/153905

x_refsource_MISC

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