CVE-2024-20341
MediumCVSS 6.1Exploitation Probability (EPSS)
Low risk35th percentile - higher than 35% of all known CVEs
Summary
A vulnerability in the VPN web client services of Cisco ASA and FTD could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a browser accessing an affected device. This is due to improper validation of user-supplied input.
Risk Assessment
An attacker could execute arbitrary HTML or script code in the victim's browser, potentially leading to session theft or other attacks.
Recommendation
Apply Cisco updates for ASA and FTD and educate users about the risks of clicking suspicious links.
Other vulnerabilities in Cisco ASA
See all- CVE-2024-20384Medium
A vulnerability in the Network Service Group (NSG) feature of Cisco ASA and FTD could allow an unauthenticated, remote attacker to bypass a configured ACL and allow traffic that should be denied. This is due to a logic error when NSG ACLs are populated.
- CVE-2024-20297Medium
A vulnerability in the AnyConnect firewall for Cisco ASA and FTD could allow an unauthenticated, remote attacker to bypass a configured ACL and allow traffic that should have been denied. This is due to a logic error in populating group ACLs when an AnyConnect client establishes a new session.
- CVE-2023-20275Medium
A vulnerability in the AnyConnect SSL VPN feature of Cisco ASA and FTD could allow an authenticated, remote attacker to send packets with another VPN user's source IP address. This is due to improper validation of the packet's inner source IP after decryption.
- CVE-2021-1476Medium
A vulnerability in the CLI of Cisco ASA and FTD could allow an authenticated, local attacker to execute arbitrary commands on the underlying OS with root privileges. This is due to insufficient input validation of user-supplied commands.
Original NVD description (English source)
A vulnerability in the VPN web client services feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a browser that is accessing an affected device. This vulnerability is due to improper validation of user-supplied input to application endpoints. An attacker could exploit this vulnerability by persuading a user to follow a link designed to submit malicious input to the affected application. A successful exploit could allow the attacker to execute arbitrary HTML or script code in the browser in the context of the web services page.