CVE-2016-9459
Description
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| nextcloud | nextcloud_server | {"endExcluding":"9.0.52"} | 9.0.52 |
| owncloud | owncloud | {"endExcluding":"9.0.4"} | 9.0.4 |
References
- http://www.securityfocus.com/bid/97284
- https://github.com/nextcloud/server/commit/94975af6db1551c2d23136c2ea22866a5b416070
- https://github.com/owncloud/core/commit/044ee072a647636b1a17c89265c7233b35371335
- https://github.com/owncloud/core/commit/b7fa2c5dc945b40bc6ed0a9a0e47c282ebf043e1
- https://github.com/owncloud/core/commit/efa35d621dc7ff975468e636a5d1c153511296dc
- https://hackerone.com/reports/146278
- https://nextcloud.com/security/advisory/?id=nc-sa-2016-002
- https://owncloud.org/security/advisory?id=oc-sa-2016-012
- http://www.securityfocus.com/bid/97284
- https://github.com/nextcloud/server/commit/94975af6db1551c2d23136c2ea22866a5b416070
- https://github.com/owncloud/core/commit/044ee072a647636b1a17c89265c7233b35371335
- https://github.com/owncloud/core/commit/b7fa2c5dc945b40bc6ed0a9a0e47c282ebf043e1
- https://github.com/owncloud/core/commit/efa35d621dc7ff975468e636a5d1c153511296dc
- https://hackerone.com/reports/146278
- https://nextcloud.com/security/advisory/?id=nc-sa-2016-002
- https://owncloud.org/security/advisory?id=oc-sa-2016-012
CWEs
CWE-209 CWE-79
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.