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CVE-2021-34746

Cisco Enterprise NFV Infrastructure Software Authentication Bypass Vulnerability

Published: Sep 2, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-289
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
17.7%
Top 3.2%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

A vulnerability in the TACACS+ authentication, authorization and accounting (AAA) feature of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an unauthenticated, remote attacker to bypass authentication and log in to an affected device as an administrator. This vulnerability is due to incomplete validation of user-supplied input that is passed to an authentication script. An attacker could exploit this vulnerability by injecting parameters into an authentication request. A successful exploit could allow the attacker to bypass authentication and log in as an administrator to the affected device.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-289CWE-287

Affected Products

Cisco Enterprise NFV Infrastructure SoftwareCiscoNetworking Infrastructure
Enterprise NFV Infrastructure SoftwareCisco Systems Inc.Networking Infrastructure
enterprise nfv infrastructure softwareciscoNetworking Infrastructure
ciscocommercialUSNetworking Infrastructureaka cisco systems, cisco systems inc.
cisco systems inc.commercialUSNetworking Infrastructureaka cisco systems, cisco

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-g2DMVVh
tools.cisco.com
https://github.com/orangecertcc/security-research/security/advisories/GHSA-gqx8-c4xr-c664
github.com

Timeline

Published
Sep 2, 2021
Last Updated
Nov 21, 2024

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