Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are vulnerable to a log pollution vulnerability potentially leading to a local XSS. The download log functionality in the admin screen is delivering the log in JSON format to the end-user. The file was delivered with an attachment disposition forcing the browser to download the document. However, Firefox running on Microsoft Windows would offer the user to open the data in the browser as an HTML document. Thus any injected data in the log would be executed.
The product generates an error message that includes sensitive information about its environment, users, or associated data.
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
| Link | Tags |
|---|---|
| https://owncloud.org/security/advisory?id=oc-sa-2016-012 | patch vendor advisory |
| https://github.com/owncloud/core/commit/b7fa2c5dc945b40bc6ed0a9a0e47c282ebf043e1 | patch third party advisory issue tracking |
| https://github.com/owncloud/core/commit/044ee072a647636b1a17c89265c7233b35371335 | patch third party advisory issue tracking |
| https://hackerone.com/reports/146278 | third party advisory exploit |
| https://github.com/owncloud/core/commit/efa35d621dc7ff975468e636a5d1c153511296dc | patch third party advisory issue tracking |
| https://nextcloud.com/security/advisory/?id=nc-sa-2016-002 | patch vendor advisory |
| https://github.com/nextcloud/server/commit/94975af6db1551c2d23136c2ea22866a5b416070 | patch third party advisory issue tracking |
| http://www.securityfocus.com/bid/97284 | third party advisory vdb entry |