National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-9459 Detail

Current 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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 6.1 MEDIUM
Vector: AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N (V3 legend)
Impact Score: 2.7
Exploitability Score: 2.8


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/97284 Third Party Advisory VDB Entry
https://github.com/nextcloud/server/commit/94975af6db1551c2d23136c2ea22866a5b416070 Issue Tracking Patch Third Party Advisory
https://github.com/owncloud/core/commit/044ee072a647636b1a17c89265c7233b35371335 Issue Tracking Patch Third Party Advisory
https://github.com/owncloud/core/commit/b7fa2c5dc945b40bc6ed0a9a0e47c282ebf043e1 Issue Tracking Patch Third Party Advisory
https://github.com/owncloud/core/commit/efa35d621dc7ff975468e636a5d1c153511296dc Issue Tracking Patch Third Party Advisory
https://hackerone.com/reports/146278 Exploit Third Party Advisory
https://nextcloud.com/security/advisory/?id=nc-sa-2016-002 Patch Vendor Advisory
https://owncloud.org/security/advisory?id=oc-sa-2016-012 Patch Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Cross-Site Scripting (XSS) (CWE-79)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
9.0.52
 cpe:2.3:a:owncloud:owncloud:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
9.0.4


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-9459
NVD Published Date:
03/27/2017
NVD Last Modified:
03/12/2019