Vulnerability Details : CVE-2021-3654
A vulnerability was found in openstack-nova's console proxy, noVNC. By crafting a malicious URL, noVNC could be made to redirect to any desired URL.
Vulnerability category: Open redirect
Products affected by CVE-2021-3654
- cpe:2.3:a:redhat:openstack_platform:16.1:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openstack_platform:16.2:*:*:*:*:*:*:*
- cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*
- cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*
- cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-3654
89.36%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 99 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-3654
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.0
|
MEDIUM | AV:N/AC:H/Au:N/C:P/I:P/A:N |
4.9
|
4.9
|
NIST | |
6.1
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST |
CWE ids for CVE-2021-3654
-
The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2021-3654
-
https://bugs.python.org/issue32084
Issue 32084: [Security] http.server can be abused to redirect to (almost) arbitrary URL - Python trackerPatch;Third Party Advisory
-
https://opendev.org/openstack/nova/commit/04d48527b62a35d912f93bc75613a6cca606df66
Reject open redirection in the console proxy · 04d48527b6 - nova - OpenDev: Free Software Needs Free ToolsPatch;Vendor Advisory
-
https://bugs.launchpad.net/nova/+bug/1927677
Bug #1927677 “[OSSA-2021-002] Open Redirect in noVNC proxy (CVE-...” : Bugs : OpenStack Compute (nova)Exploit;Issue Tracking;Patch;Third Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1961439
1961439 – (CVE-2021-3654) CVE-2021-3654 openstack-nova: novnc allows open redirectionIssue Tracking;Patch;Third Party Advisory
-
https://security.openstack.org/ossa/OSSA-2021-002.html
OSSA-2021-002: Open Redirect in noVNC proxy — OpenStack Security Advisories 0.0.1.dev246 documentationPatch;Vendor Advisory
-
https://security.gentoo.org/glsa/202305-02
Python, PyPy3: Multiple Vulnerabilities (GLSA 202305-02) — Gentoo security
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https://opendev.org/openstack/nova/commit/8906552cfc2525a44251d4cf313ece61e57251eb
address open redirect with 3 forward slashes · 8906552cfc - nova - OpenDev: Free Software Needs Free ToolsPatch;Vendor Advisory
-
https://www.openwall.com/lists/oss-security/2021/07/29/2
oss-security - [OSSA-2021-002] Nova: Open Redirect in noVNC proxy (CVE-2021-3654)Mailing List;Patch;Third Party Advisory
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