PT-2023-17406 · Cisco · Cisco Asa+1

Published 2023-11-01 · Updated 2024-01-25 · CVE-2023-20086

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco Adaptive Security Appliance (ASA) Software (affected versions not specified) Cisco Firepower Threat Defense (FTD) Software (affected versions not specified)

Description A vulnerability in ICMPv6 processing could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This is due to improper processing of ICMPv6 messages. An attacker could exploit this by sending crafted ICMPv6 messages to a targeted system with IPv6 enabled, potentially causing the device to reload.

Recommendations For Cisco Adaptive Security Appliance (ASA) Software, consider disabling IPv6 until a patch is available. For Cisco Firepower Threat Defense (FTD) Software, restrict access to ICMPv6 messages to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Weakness Enumeration

CWE-248

Related Identifiers

CVE-2023-20086

Affected Products

Cisco Asa

Cisco Ftd

References · 6

• https://osv.dev/vulnerability/CVE-2023-20086 · Vendor Advisory
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-icmpv6-t5TzqwNd · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-20086 · Security Note
• https://twitter.com/CVEnew/status/1719759419326566819 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1719787121735577647 · Twitter Post
• https://t.me/cibsecurity/73347 · Telegram Post