Flaw in Authentication Flow of Cisco VPN Software
CVE-2022-20928

5.8MEDIUM

Key Information:

Vendor

Cisco
Status
Cisco Adaptive Security Appliance (asa) Software
Cisco Firepower Threat Defense Software
Cisco Firepower Services Software For Asa
Vendor
CVE Published:
15 November 2022

Badges

👾 Exploit Exists

What is CVE-2022-20928?

A vulnerability in the VPN authentication and authorization processes of Cisco ASA and FTD software could enable an unauthenticated, remote attacker to connect as a different user. This flaw arises from inadequate verification of authorization during the VPN authentication process. An attacker can exploit this vulnerability by sending a specially crafted packet, necessitating valid credentials for establishing a VPN connection. If successful, the attacker could gain unauthorized access to the network with the privileges of another user, posing significant security risks.

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Deploy the Patch

Affected Version(s)

Cisco Adaptive Security Appliance (ASA) Software 9.8.1

Cisco Adaptive Security Appliance (ASA) Software 9.8.1.5

Cisco Adaptive Security Appliance (ASA) Software 9.8.1.7

References

https://sec.cloudapps.cisco.com/security/center/content/C...

CVSS V3.1

Score:
5.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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