Medium severity · published Sep 25, 2019
CVE-2017-18635
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…
6.1
CVSS
4.8%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)4.8% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
NO
Novnc · Novnc
before 0.6.2 · source: NVD
OP
Openstack · Redhat
13 · source: NVD
UL
Ubuntu Linux · Canonical
16.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-18635
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-18635
Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0754
Issue Tracking
https://bugs.launchpad.net/horizon/+bug/1656435
Third Party Advisory
https://github.com/ShielderSec/cve-2017-18635
Patch
https://github.com/novnc/noVNC/commit/6048299a138e078aed210f163111698c8c526a13#diff-286f7dc7b881e942e97cd50c10898f03L534
Patch
https://github.com/novnc/noVNC/issues/748
Release Notes
https://github.com/novnc/noVNC/releases/tag/v0.6.2
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