CVE-2016-9461

Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are not properly verifying edit check permissions on WebDAV copy actions. The WebDAV endpoint was not properly checking the permission on a WebDAV COPY action. This allowed an authenticated attacker with access to a read-only share to put new files in there. It was not possible to modify existing files.

• CWE-275
• CWE-284

• http://www.securityfocus.com/bid/97276Third Party Advisory, VDB Entry
• https://github.com/nextcloud/server/commit/3491400261c1454a9a30d3ec96969573330120ccIssue Tracking, Patch, Third Party Advisory
• https://github.com/owncloud/core/commit/0622e635d97cb17c5e1363e370bb8268cc3d2547Issue Tracking, Patch, Third Party Advisory
• https://github.com/owncloud/core/commit/121a3304a0c37ccda0e1b63ddc528cba9121a36eIssue Tracking, Patch, Third Party Advisory
• https://github.com/owncloud/core/commit/acbbadb71ceee7f01da347f7dcd519beda78cc47Issue Tracking, Patch, Third Party Advisory
• https://github.com/owncloud/core/commit/c0a4b7b3f38ad2eaf506484b3b92ec678cb021c9Issue Tracking, Patch, Third Party Advisory
• https://hackerone.com/reports/145950Exploit, Third Party Advisory
• https://nextcloud.com/security/advisory/?id=nc-sa-2016-004Patch, Vendor Advisory
• https://owncloud.org/security/advisory/?id=oc-sa-2016-014Patch, Vendor Advisory
• http://www.securityfocus.com/bid/97276Third Party Advisory, VDB Entry
• https://github.com/nextcloud/server/commit/3491400261c1454a9a30d3ec96969573330120ccIssue Tracking, Patch, Third Party Advisory
• https://github.com/owncloud/core/commit/0622e635d97cb17c5e1363e370bb8268cc3d2547Issue Tracking, Patch, Third Party Advisory
• https://github.com/owncloud/core/commit/121a3304a0c37ccda0e1b63ddc528cba9121a36eIssue Tracking, Patch, Third Party Advisory
• https://github.com/owncloud/core/commit/acbbadb71ceee7f01da347f7dcd519beda78cc47Issue Tracking, Patch, Third Party Advisory
• https://github.com/owncloud/core/commit/c0a4b7b3f38ad2eaf506484b3b92ec678cb021c9Issue Tracking, Patch, Third Party Advisory
• https://hackerone.com/reports/145950Exploit, Third Party Advisory
• https://nextcloud.com/security/advisory/?id=nc-sa-2016-004Patch, Vendor Advisory
• https://owncloud.org/security/advisory/?id=oc-sa-2016-014Patch, Vendor Advisory

Published

Mar 28, 2017

Last Modified

Jun 17, 2026

Status

Modified

• Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
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