CVE-2021-34746
highPriorität · beachten · 45EPSS 0.177 · 97. PerzentilEURUUSEPSS · bewertet 2026-10-27
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.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- BehobenCisco Enterprise NFV Infrastructure Softwarecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · high–critical · 9–9.8
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (4)
Betroffene Produkte und Versionsbereiche.
- cisco enterprise nfv infrastructure software< 4.6.1nvdUScpe:2.3:a:cisco:enterprise_nfv_infrastructure_software:*:*:*:*:*:*:*:*
Advisories (1)
Hersteller- und Ökosystem-Meldungen dazu.
- cisco-sa-nfvis-g2DMVVhCisco Enterprise NFV Infrastructure Software Authentication Bypass Vulnerability2021-09-01csaf · cisco_csafUS
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. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
auch bekannt als (4)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (8)
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/orangecertcc/security-research/security/advisories/GHSA-gqx8-c4xr-c664cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-34746cnnvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-g2DMVVhcnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.2961cnnvd
- https://github.com/orangecertcc/security-research/security/advisories/GHSA-gqx8-c4xr-c664enisa_euvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-g2DMVVhenisa_euvd
- https://github.com/orangecertcc/security-research/security/advisories/GHSA-gqx8-c4xr-c664ExploitThird Party Advisorynvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-g2DMVVhVendor Advisorynvd
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