Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | Nextcloud Server | < 9.0.52 |
| Owncloud | Owncloud | < 9.0.4 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/97284Third Party AdvisoryVDB Entry
- https://github.com/nextcloud/server/commit/94975af6db1551c2d23136c2ea22866a5b416Issue TrackingPatchThird Party Advisory
- https://github.com/owncloud/core/commit/044ee072a647636b1a17c89265c7233b35371335Issue TrackingPatchThird Party Advisory
- https://github.com/owncloud/core/commit/b7fa2c5dc945b40bc6ed0a9a0e47c282ebf043e1Issue TrackingPatchThird Party Advisory
- https://github.com/owncloud/core/commit/efa35d621dc7ff975468e636a5d1c153511296dcIssue TrackingPatchThird Party Advisory
- https://hackerone.com/reports/146278ExploitThird Party Advisory
- https://nextcloud.com/security/advisory/?id=nc-sa-2016-002PatchVendor Advisory
- https://owncloud.org/security/advisory?id=oc-sa-2016-012PatchVendor Advisory
- http://www.securityfocus.com/bid/97284Third Party AdvisoryVDB Entry
- https://github.com/nextcloud/server/commit/94975af6db1551c2d23136c2ea22866a5b416Issue TrackingPatchThird Party Advisory
- https://github.com/owncloud/core/commit/044ee072a647636b1a17c89265c7233b35371335Issue TrackingPatchThird Party Advisory
- https://github.com/owncloud/core/commit/b7fa2c5dc945b40bc6ed0a9a0e47c282ebf043e1Issue TrackingPatchThird Party Advisory
- https://github.com/owncloud/core/commit/efa35d621dc7ff975468e636a5d1c153511296dcIssue TrackingPatchThird Party Advisory
- https://hackerone.com/reports/146278ExploitThird Party Advisory
- https://nextcloud.com/security/advisory/?id=nc-sa-2016-002PatchVendor Advisory
FAQ
What is CVE-2016-9459?
CVE-2016-9459 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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 ...
How severe is CVE-2016-9459?
CVE-2016-9459 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-9459?
Check the references section above for vendor advisories and patch information. Affected products include: Nextcloud Nextcloud Server, Owncloud Owncloud.