CVE-2023-20275

Severity

43%

Complexity

27%

Confidentiality

23%

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.

CVSS 3.1 Base Score 4.3. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N).

Overview

Type

Cisco Firepower Threat Defense

First reported 1 year ago

2023-12-12 18:15:00

Last updated 1 year ago

2023-12-15 16:53:00

Affected Software

Cisco Firepower Threat Defense 6.2.3

6.2.3

Cisco Firepower Threat Defense (FTD) 6.2.3.1

6.2.3.1

Cisco Firepower Threat Defense (FTD) 6.4.0

6.4.0

Cisco Firepower Threat Defense 6.2.3.13

6.2.3.13

Cisco Firepower Threat Defense (FTD) 6.2.3.14

6.2.3.14

Cisco Firepower Threat Defense (FTD) 6.2.3.15

6.2.3.15

Cisco Firepower Threat Defense 6.2.3.12

6.2.3.12

Cisco Firepower Threat Defense 6.6.0

6.6.0

Cisco Firepower Threat Defense 6.2.3.2

6.2.3.2

Cisco Firepower Threat Defense 6.2.3.3

6.2.3.3

Cisco Firepower Threat Defense 6.2.3.4

6.2.3.4

Cisco Firepower Threat Defense 6.2.3.5

6.2.3.5

Cisco Firepower Threat Defense 6.2.3.6

6.2.3.6

Cisco Firepower Threat Defense 6.2.3.7

6.2.3.7

Cisco Firepower Threat Defense 6.2.3.10

6.2.3.10

Cisco Firepower Threat Defense 6.2.3.11

6.2.3.11

Cisco Firepower Threat Defense 6.2.3.9

6.2.3.9

Cisco Firepower Threat Defense (FTD) 6.2.3.16

6.2.3.16

Cisco Firepower Threat Defense (FTD) 6.4.0.1

6.4.0.1

Cisco Firepower Threat Defense 6.4.0.3

6.4.0.3

Cisco Firepower Threat Defense (FTD) 6.4.0.2

6.4.0.2

Cisco Firepower Threat Defense (FTD) 6.4.0.4

6.4.0.4

Cisco Firepower Threat Defense (FTD) 6.4.0.5

6.4.0.5

Cisco Firepower Threat Defense (FTD) 6.4.0.6

6.4.0.6

Cisco Firepower Threat Defense (FTD) 6.4.0.7

6.4.0.7

Cisco Firepower Threat Defense (FTD) 6.4.0.8

6.4.0.8

Cisco Firepower Threat Defense 6.4.0.9

6.4.0.9

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssl-vpn-Y88QOm77

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssl-vpn-Y88QOm77

Vendor Advisory

Stay updated

ExploitPedia is constantly evolving. Sign up to receive a notification when we release additional functionality.

Get in touch

If you'd like to report a bug or have any suggestions for improvements then please do get in touch with us using this form. We will get back to you as soon as we can.