CVE-2023-20275

Published Dec 12, 2023

Last updated 2 months ago

CVSS medium 4.1
Tunneling protocol

Overview

Description
A vulnerability in the AnyConnect SSL VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to send packets with another VPN user's source IP address. This vulnerability is due to improper validation of the packet's inner source IP address after decryption. An attacker could exploit this vulnerability by sending crafted packets through the tunnel. A successful exploit could allow the attacker to send a packet impersonating another VPN user's IP address. It is not possible for the attacker to receive return packets.
Source
psirt@cisco.com
NVD status
Modified
Products
adaptive_security_appliance_software, secure_firewall_threat_defense

Risk scores

CVSS 3.1

Type
Primary
Base score
4.3
Impact score
1.4
Exploitability score
2.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Severity
MEDIUM

Weaknesses

psirt@cisco.com
CWE-346
nvd@nist.gov
NVD-CWE-noinfo

Social media

Hype score
Not currently trending

Configurations