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Cisco ASA: CVE-2023-20275: Cisco Adaptive Security Appliance and Firepower Threat Defense Software VPN Packet Validation Vulnerability

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Cisco ASA: CVE-2023-20275: Cisco Adaptive Security Appliance and Firepower Threat Defense Software VPN Packet Validation Vulnerability

Severity
4
CVSS
(AV:N/AC:L/Au:S/C:N/I:P/A:N)
Published
12/05/2023
Created
12/15/2023
Added
12/12/2023
Modified
01/22/2025

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.

Solution(s)

  • cisco-asa-update-latest

References

  • https://attackerkb.com/topics/cve-2023-20275
  • CVE - 2023-20275
  • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssl-vpn-Y88QOm77
  • cisco-sa-asa-ssl-vpn-Y88QOm77
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  • 最后回复

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