PT-2022-2700 · Cisco · Cisco Ios Xe

Published 2022-04-13 · Updated 2022-04-27 · CVE-2022-20692

Positive Technologies (AI Summary)

CVSS v3.1

7.7

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco IOS XE Software (affected versions not specified)

Description The issue is related to insufficient resource management in the NETCONF over SSH feature, which could allow a low-privileged, authenticated, remote attacker to cause a denial of service condition on an affected device. An attacker could exploit this by initiating a large number of NETCONF over SSH connections, potentially exhausting resources and causing the device to reload.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

BDU:2022-03194

CVE-2022-20692

Affected Products

Cisco Ios Xe

References · 6

• https://osv.dev/vulnerability/CVE-2022-20692 · Vendor Advisory
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ncossh-dos-ZAkfOdq8 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-03194 · Security Note
• https://safe-surf.ru/specialists/bulletins-nkcki/678617 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-20692 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ncossh-dos-ZAkfOdq8 · Vendor Advisory