CVE-2021-1619

Description

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.

Risk Information

Base Score

9.1

MODERATE

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

EPSS Score

Exploitation Probability

0.869

Associated Vulnerability

Vulnerability	OS Platform
Cisco IOS XE Software NETCONF and RESTCONF Authentication Bypass Vulnerability For Cisco IOS XE SD-WAN Software	NCM
Cisco IOS XE Software NETCONF and RESTCONF Authentication Bypass Vulnerability For Cisco IOS XE Software	NCM
Use of Uninitialized Resource Vulnerability (CVE-2021-1619)	NCM

Patch Details

Click to see the patches provided by ManageEngine for this CVE

Patch ID	Patch Description
PATCH-1706092	Security Update for Cisco IOS XE SD-WAN Software sdwan-20.6(999.751)
PATCH-1706107	Security Update for Cisco IOS XE Software 5.2(1)SV5(1.3a)

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234