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Diffstat (limited to 'advisories/nc-sa-2016-008.php')
| -rw-r--r-- | advisories/nc-sa-2016-008.php | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/advisories/nc-sa-2016-008.php b/advisories/nc-sa-2016-008.php index b59d8cf3..73de2a06 100644 --- a/advisories/nc-sa-2016-008.php +++ b/advisories/nc-sa-2016-008.php @@ -13,9 +13,7 @@ <p>CWE: <a href="https://cwe.mitre.org/data/definitions/79.html">Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (CWE-79)</a></p> <p>HackerOne report: <a href="https://hackerone.com/reports/163338">163338</a></p> <h3>Description</h3> - <p><p>The CardDAV image export functionality as implemented in Nextcloud allows the download of images stored within a vCard. Due to not performing any kind of verification on the image content this is prone to a stored Cross-Site Scripting attack.</p> -<p><strong>Note:</strong> Nextcloud employs a very strict Content Security Policy on the DAV endpoints. This is thus only exploitable on browsers that don't support Content Security Policy.</p> -</p> + <p>The CardDAV image export functionality as implemented in Nextcloud allows the download of images stored within a vCard. Due to not performing any kind of verification on the image content this is prone to a stored Cross-Site Scripting attack.<strong>Note:</strong> Nextcloud employs a very strict Content Security Policy on the DAV endpoints. This is thus only exploitable on browsers that don't support Content Security Policy.</p> <h3>Affected Software</h3> <ul> <li>Nextcloud Server < <strong>10.0.1</strong> (CVE-2016-9465)</li> @@ -25,8 +23,9 @@ </ul> <h3>Action Taken</h3> - <p><p>The mimetype of the exported image is now compared with a whitelist as well as download disposition headers have been set on the response.</p> -</p> + <p>The mimetype of the exported image is now compared with a whitelist as well as download disposition headers have been set on the response.</p> + <h3>Resolution</h3> + <p>It is recommended that all instances are upgraded to Nextcloud 10.0.1.</p> <h3>Acknowledgements</h3> <p>The Nextcloud team thanks the following people for their research and responsible disclosure of the above advisory:</p> <ul> |