CVE-2021-3654

openstack-nova: novnc allows open redirection

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Se ha encontrado una vulnerabilidad en el proxy de consola de openstack-nova, noVNC. Mediante el diseño de una URL maliciosa, noVNC puede ser redirigido a cualquier URL deseada

A vulnerability was found in CPython which is used by openstack-nova's console proxy, noVNC. By crafting a malicious URL, noVNC could be made to redirect to any desired URL.

OpenStack Compute is open source software designed to provision and manage large networks of virtual machines, creating a redundant and scalable cloud computing platform. It gives you the software, control panels, and APIs required to orchestrate a cloud, including running instances, managing networks, and controlling access through users and projects.OpenStack Compute strives to be both hardware and hypervisor agnostic, currently supporting a variety of standard hardware configurations and seven major hypervisors. Issues addressed include an open redirection vulnerability.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-07-20 CVE Reserved
2022-03-02 CVE Published
2024-08-03 CVE Updated
2024-08-03 First Exploit
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-601: URL Redirection to Untrusted Site ('Open Redirect')

CAPEC

References (9)

URL	Tag	Source

URL	Date	SRC
https://bugs.launchpad.net/nova/+bug/1927677	2024-08-03

URL	Date	SRC
https://bugs.python.org/issue32084	2023-05-03
https://bugzilla.redhat.com/show_bug.cgi?id=1961439	2022-03-23
https://opendev.org/openstack/nova/commit/04d48527b62a35d912f93bc75613a6cca606df66	2023-05-03
https://opendev.org/openstack/nova/commit/8906552cfc2525a44251d4cf313ece61e57251eb	2023-05-03
https://security.openstack.org/ossa/OSSA-2021-002.html	2023-05-03
https://www.openwall.com/lists/oss-security/2021/07/29/2	2023-05-03

URL	Date	SRC
https://security.gentoo.org/glsa/202305-02	2023-05-03
https://access.redhat.com/security/cve/CVE-2021-3654	2022-03-23

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Openstack Search vendor "Openstack"		Nova Search vendor "Openstack" for product "Nova"				< 21.2.3 Search vendor "Openstack" for product "Nova" and version " < 21.2.3"		-		Affected
Openstack Search vendor "Openstack"		Nova Search vendor "Openstack" for product "Nova"				>= 22.0.0 < 22.2.3 Search vendor "Openstack" for product "Nova" and version " >= 22.0.0 < 22.2.3"		-		Affected
Openstack Search vendor "Openstack"		Nova Search vendor "Openstack" for product "Nova"				>= 23.0.0 < 23.0.3 Search vendor "Openstack" for product "Nova" and version " >= 23.0.0 < 23.0.3"		-		Affected
Redhat Search vendor "Redhat"		Openstack Platform Search vendor "Redhat" for product "Openstack Platform"				16.1 Search vendor "Redhat" for product "Openstack Platform" and version "16.1"		-		Affected
Redhat Search vendor "Redhat"		Openstack Platform Search vendor "Redhat" for product "Openstack Platform"				16.2 Search vendor "Redhat" for product "Openstack Platform" and version "16.2"		-		Affected