CVE-2017-18635

Public Exploit

Description

An XSS vulnerability was discovered in noVNC before 0.6.2 in which the remote VNC server could inject arbitrary HTML into the noVNC web page via the messages propagated to the status field, such as the VNC server name.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.14% Top 20%
Vendor Advisory redhat.com Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/novnc/noVNC/issues/748 third party advisory patch
https://github.com/novnc/noVNC/releases/tag/v0.6.2 third party advisory release notes
https://bugs.launchpad.net/horizon/+bug/1656435 third party advisory issue tracking
https://github.com/novnc/noVNC/commit/6048299a138e078aed210f163111698c8c526a13#diff-286f7dc7b881e942e97cd50c10898f03L534 third party advisory patch
https://lists.debian.org/debian-lts-announce/2019/10/msg00004.html third party advisory mailing list
https://www.shielder.it/blog/exploiting-an-old-novnc-xss-cve-2017-18635-in-openstack/ third party advisory exploit
https://github.com/ShielderSec/cve-2017-18635 third party advisory
https://access.redhat.com/errata/RHSA-2020:0754 third party advisory vendor advisory
https://usn.ubuntu.com/4522-1/ third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2021/12/msg00024.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2017-18635?
CVE-2017-18635 has been scored as a medium severity vulnerability.
How to fix CVE-2017-18635?
To fix CVE-2017-18635, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-18635 being actively exploited in the wild?
It is possible that CVE-2017-18635 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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