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Security Bulletin: Openstack Compute (Neutron) noVNC proxy

Security Bulletin


Summary

Fix OpenStack Neutron allowing a remote attacker to conduct phishing attacks, caused by an open redirect vulnerability in the noVNC component. By modifying untrusted URL input using multiple backslashes, an attacker could exploit this vulnerability to redirect a victim to arbitrary websites

Vulnerability Details

CVEID:   CVE-2021-40797
DESCRIPTION:   OpenStack Neutron is vulnerable to a denial of service, caused by a memory leak in the routes middleware. By making API requests involving nonexistent controllers, a remote authenticated attacker could exploit this vulnerability to cause a denial of service.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/208929 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Affected Product(s)Version(s)
PowerVC

1.4.4.2

2.0.0.0

2.0.1


Remediation/Fixes

 Product(s)VersionAPARRemediation
IBM PowerVC1.4.4.2IT39330https://www.ibm.com/support/fixcentral/swg/downloadFixes?parent=ibm%7EOther%20software&product=ibm/Other+software/PowerVC&release=1.4.4.2&platform=All&function=fixId&fixids=1.4.4.2-PowerVC-RHEL-NOARCH-APAR-IT39330&includeRequisites=0&includeSupersedes=0&downloadMethod=http
IBM PowerVC2.0.0.0IT39330https://www.ibm.com/support/fixcentral/swg/downloadFixes?parent=ibm%7EOther%20software&product=ibm/Other+software/PowerVC&release=2.0.0.0&platform=All&function=fixId&fixids=2.0.0.0-PowerVC-RHEL-SLES-NOARCH-APAR-IT39330&includeRequisites=0&includeSupersedes=0&downloadMethod=http
IBM PowerVC2.0.1IT39330https://www.ibm.com/support/fixcentral/swg/downloadFixes?parent=ibm%7EOther%20software&product=ibm/Other+software/PowerVC&release=2.0.1&platform=All&function=fixId&fixids=2.0.1-PowerVC-RHEL-SLES-NOARCH-APAR-IT39330&includeRequisites=0&includeSupersedes=0&downloadMethod=http

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

08 Jan 2022: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

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Document Information

Modified date:
08 January 2022

UID

ibm16539202

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