6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6 Medium
AI Score
Confidence
High
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.004 Low
EPSS
Percentile
71.3%
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.
CPE | Name | Operator | Version |
---|---|---|---|
ubuntu_linux | eq | 16.04 | |
debian_linux | eq | 8.0 | |
debian_linux | eq | 9.0 | |
novnc | lt | 0.6.2 | |
openstack | eq | 13 |
access.redhat.com/errata/RHSA-2020:0754
bugs.launchpad.net/horizon/+bug/1656435
github.com/novnc/noVNC/commit/6048299a138e078aed210f163111698c8c526a13
github.com/novnc/noVNC/issues/748
github.com/novnc/noVNC/releases/tag/v0.6.2
github.com/ShielderSec/cve-2017-18635
lists.debian.org/debian-lts-announce/2019/10/msg00004.html
lists.debian.org/debian-lts-announce/2021/12/msg00024.html
usn.ubuntu.com/4522-1/
www.shielder.it/blog/exploiting-an-old-novnc-xss-cve-2017-18635-in-openstack/
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6 Medium
AI Score
Confidence
High
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.004 Low
EPSS
Percentile
71.3%