critical
9.8
CWE
908 824
Advisory Published
Updated

CVE-2021-1619: Cisco IOS XE Software NETCONF and RESTCONF Authentication Bypass Vulnerability

First published: Thu Sep 23 2021(Updated: )

A vulnerability in the authentication, authorization, and accounting (AAA) function of Cisco IOS XE Software could allow an unauthenticated, remote attacker to bypass NETCONF or RESTCONF authentication and do either of the following: Install, manipulate, or delete the configuration of an affected device Cause memory corruption that results in a denial of service (DoS) on an affected device This vulnerability is due to an uninitialized variable. An attacker could exploit this vulnerability by sending a series of NETCONF or RESTCONF requests to an affected device. A successful exploit could allow the attacker to use NETCONF or RESTCONF to install, manipulate, or delete the configuration of a network device or to corrupt memory on the device, resulting a DoS.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco IOS XE=16.3.1
Cisco IOS XE=16.3.1a
Cisco IOS XE=16.3.2
Cisco IOS XE=16.3.3
Cisco IOS XE=16.3.4
Cisco IOS XE=16.3.5
Cisco IOS XE=16.3.5b
Cisco IOS XE=16.3.6
Cisco IOS XE=16.3.7
Cisco IOS XE=16.3.8
Cisco IOS XE=16.3.9
Cisco IOS XE=16.3.10
Cisco IOS XE=16.3.11
Cisco IOS XE=16.4.1
Cisco IOS XE=16.4.2
Cisco IOS XE=16.4.3
Cisco IOS XE=16.5.1
Cisco IOS XE=16.5.1a
Cisco IOS XE=16.5.1b
Cisco IOS XE=16.5.2
Cisco IOS XE=16.5.3
Cisco IOS XE=16.6.1
Cisco IOS XE=16.6.2
Cisco IOS XE=16.6.3
Cisco IOS XE=16.6.4
Cisco IOS XE=16.6.4a
Cisco IOS XE=16.6.4s
Cisco IOS XE=16.6.5
Cisco IOS XE=16.6.5a
Cisco IOS XE=16.6.5b
Cisco IOS XE=16.6.6
Cisco IOS XE=16.6.7
Cisco IOS XE=16.6.7a
Cisco IOS XE=16.6.8
Cisco IOS XE=16.6.9
Cisco IOS XE=16.7.1
Cisco IOS XE=16.7.1a
Cisco IOS XE=16.7.1b
Cisco IOS XE=16.7.2
Cisco IOS XE=16.7.3
Cisco IOS XE=16.7.4
Cisco IOS XE=16.8.1
Cisco IOS XE=16.8.1a
Cisco IOS XE=16.8.1b
Cisco IOS XE=16.8.1c
Cisco IOS XE=16.8.1d
Cisco IOS XE=16.8.1e
Cisco IOS XE=16.8.1s
Cisco IOS XE=16.8.2
Cisco IOS XE=16.8.3
Cisco IOS XE=16.9.1
Cisco IOS XE=16.9.1a
Cisco IOS XE=16.9.1b
Cisco IOS XE=16.9.1c
Cisco IOS XE=16.9.1d
Cisco IOS XE=16.9.1s
Cisco IOS XE=16.9.2
Cisco IOS XE=16.9.2a
Cisco IOS XE=16.9.2s
Cisco IOS XE=16.9.3
Cisco IOS XE=16.9.3a
Cisco IOS XE=16.9.3h
Cisco IOS XE=16.9.3s
Cisco IOS XE=16.9.4
Cisco IOS XE=16.9.4c
Cisco IOS XE=16.9.5
Cisco IOS XE=16.9.5f
Cisco IOS XE=16.9.6
Cisco IOS XE=16.9.7
Cisco IOS XE=16.10.1
Cisco IOS XE=16.10.1a
Cisco IOS XE=16.10.1b
Cisco IOS XE=16.10.1c
Cisco IOS XE=16.10.1d
Cisco IOS XE=16.10.1e
Cisco IOS XE=16.10.1f
Cisco IOS XE=16.10.1g
Cisco IOS XE=16.10.1s
Cisco IOS XE=16.10.2
Cisco IOS XE=16.10.3
Cisco IOS XE=16.11.1
Cisco IOS XE=16.11.1a
Cisco IOS XE=16.11.1b
Cisco IOS XE=16.11.1c
Cisco IOS XE=16.11.1s
Cisco IOS XE=16.11.2
Cisco IOS XE=16.12.1
Cisco IOS XE=16.12.1a
Cisco IOS XE=16.12.1c
Cisco IOS XE=16.12.1s
Cisco IOS XE=16.12.1t
Cisco IOS XE=16.12.1w
Cisco IOS XE=16.12.1x
Cisco IOS XE=16.12.1y
Cisco IOS XE=16.12.1z
Cisco IOS XE=16.12.1z1
Cisco IOS XE=16.12.1za
Cisco IOS XE=16.12.2
Cisco IOS XE=16.12.2a
Cisco IOS XE=16.12.2s
Cisco IOS XE=16.12.2t
Cisco IOS XE=16.12.3
Cisco IOS XE=16.12.3a
Cisco IOS XE=16.12.3s
Cisco IOS XE=16.12.4
Cisco IOS XE=16.12.4a
Cisco IOS XE=16.12.5
Cisco IOS XE=16.12.5a
Cisco IOS XE=16.12.5b
Cisco IOS XE=17.1.1
Cisco IOS XE=17.1.1a
Cisco IOS XE=17.1.1s
Cisco IOS XE=17.1.1t
Cisco IOS XE=17.1.2
Cisco IOS XE=17.1.3
Cisco IOS XE=17.2.1
Cisco IOS XE=17.2.1a
Cisco IOS XE=17.2.1r
Cisco IOS XE=17.2.1v
Cisco IOS XE sd-wan
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE SD-WAN=routers
Cisco IOS XE sd-wan=router
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan 16.10.2=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=router
Cisco IOS XE sd-wan 16.10.3=routers
Cisco IOS XE sd-wan 16.10.3=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=router
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=series
Cisco IOS XE sd-wan=router
Cisco IOS XE sd-wan 16.10.3b=routers
Cisco IOS XE sd-wan 16.10.3b=routers
Cisco IOS XE sd-wan 16.10.3b=routers
Cisco IOS XE sd-wan=series
Cisco IOS XE sd-wan 16.10.3b=router
Cisco IOS XE sd-wan 16.10.4=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan 16.10.4=routers
Cisco IOS XE sd-wan=series
Cisco IOS XE sd-wan 16.10.4=router
Cisco IOS XE sd-wan 16.10.5=routers
Cisco IOS XE sd-wan 16.10.5=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=series
Cisco IOS XE sd-wan=router
Cisco IOS XE sd-wan 16.10.6=routers
Cisco IOS XE sd-wan 16.10.6=routers
Cisco IOS XE sd-wan 16.10.6=routers
Cisco IOS XE sd-wan 16.10.6=series
Cisco IOS XE sd-wan=router
Cisco IOS XE sd-wan 16.11.1=routers
Cisco IOS XE sd-wan 16.11.1=routers
Cisco IOS XE sd-wan 16.11.1b=routers
Cisco IOS XE sd-wan 16.11.1=router
Cisco IOS XE sd-wan 16.11.1a=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=series
Cisco IOS XE sd-wan 16.11.1a=router
Cisco IOS XE sd-wan 16.11.1b=routers
Cisco IOS XE sd-wan 16.11.1b=routers
Cisco IOS XE sd-wan 16.11.1b=routers
Cisco IOS XE sd-wan=series
Cisco IOS XE sd-wan 16.11.1b=router
Cisco IOS XE sd-wan=series
Cisco IOS XE sd-wan 16.11.1d=router
Cisco IOS XE sd-wan 16.11.1f=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan 16.11.1s=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=series
Cisco IOS XE sd-wan=router
Cisco IOS XE sd-wan 16.12.1=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan 16.12.1=routers
Cisco IOS XE sd-wan 16.12.1=routers
Cisco IOS XE sd-wan 16.12.1=series
Cisco IOS XE sd-wan 16.12.1=router
Cisco IOS XE sd-wan 16.12.1a when installed ON 1000 series integrated services=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE SD-WAN=routers
Cisco IOS XE sd-wan=series
Cisco IOS XE sd-wan=router
Cisco IOS XE sd-wan 16.12.1b=routers
Cisco IOS XE sd-wan 16.12.1b=routers
Cisco IOS XE sd-wan 16.12.1b=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan 16.12.1b=series
Cisco IOS XE sd-wan 16.12.1b=router
Cisco IOS XE sd-wan 16.12.1b1=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan 16.12.1b1=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan 16.12.1b1=series
Cisco IOS XE sd-wan 16.12.1b1=router
Cisco IOS XE sd-wan 16.12.1c=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan 16.12.1c=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=series
Cisco IOS XE sd-wan 16.12.1c when installed ON integrated services virtual=router
Cisco IOS XE sd-wan 16.12.1d=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan 16.12.1d=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan 16.12.1d=series
Cisco IOS XE sd-wan 16.12.1d=router
Cisco IOS XE sd-wan 16.12.1e=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan 16.12.1e=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan 16.12.1e=series
Cisco IOS XE sd-wan=router
Cisco IOS XE sd-wan 16.12.2r=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan 16.12.2r=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=series
Cisco IOS XE sd-wan=router
Cisco IOS XE sd-wan 16.12.3=routers
Cisco IOS XE sd-wan 16.12.3 when installed ON 1100 series industrial integrated services=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan 16.12.3=routers
Cisco IOS XE sd-wan=series
Cisco IOS XE sd-wan=router
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan 16.12.4=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=series
Cisco IOS XE sd-wan 16.12.4 when installed ON integrated services virtual=router
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=series
Cisco IOS XE sd-wan=router
Cisco IOS XE sd-wan 16.12.5=routers
Cisco IOS XE sd-wan 16.12.5=routers
Cisco IOS XE sd-wan 16.12.5=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=series
Cisco IOS XE SD-WAN=router
Cisco IOS XE sd-wan 16.9.1=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=router
Cisco IOS XE sd-wan 16.9.2=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan 16.9.2=router
Cisco IOS XE sd-wan 16.9.3=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan=router
Cisco IOS XE sd-wan 16.9.4=routers
Cisco IOS XE sd-wan 16.9.4=routers
Cisco IOS XE sd-wan=routers
Cisco IOS XE sd-wan 16.9.4=router

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