CVE-2020-3125

Summary

CVECVE-2020-3125
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-05-06 17:15:00 UTC
Updated2023-08-16 16:17:00 UTC
DescriptionA vulnerability in the Kerberos authentication feature of Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to impersonate the Kerberos key distribution center (KDC) and bypass authentication on an affected device that is configured to perform Kerberos authentication for VPN or local device access. The vulnerability is due to insufficient identity verification of the KDC when a successful authentication response is received. An attacker could exploit this vulnerability by spoofing the KDC server response to the ASA device. This malicious response would not have been authenticated by the KDC. A successful attack could allow an attacker to bypass Kerberos authentication.

Risk And Classification

Problem Types: CWE-287

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Cisco Adaptive Security Appliance All All All All
Application Cisco Adaptive Security Appliance All All All All
Operating System Cisco Adaptive Security Appliance Software All All All All
Hardware Cisco Asa 5505 - All All All
Hardware Cisco Asa 5505 - All All All
Operating System Cisco Asa 5505 Firmware 9.10\(1.220\) All All All
Operating System Cisco Asa 5505 Firmware 9.10\(1.220\) All All All
Hardware Cisco Asa 5510 - All All All
Hardware Cisco Asa 5510 - All All All
Operating System Cisco Asa 5510 Firmware 9.10\(1.220\) All All All
Operating System Cisco Asa 5510 Firmware 9.10\(1.220\) All All All
Hardware Cisco Asa 5512-x - All All All
Hardware Cisco Asa 5512-x - All All All
Operating System Cisco Asa 5512-x Firmware 9.10\(1.220\) All All All
Operating System Cisco Asa 5512-x Firmware 9.10\(1.220\) All All All
Hardware Cisco Asa 5515-x - All All All
Hardware Cisco Asa 5515-x - All All All
Operating System Cisco Asa 5515-x Firmware 9.10\(1.220\) All All All
Operating System Cisco Asa 5515-x Firmware 9.10\(1.220\) All All All
Hardware Cisco Asa 5520 - All All All
Hardware Cisco Asa 5520 - All All All
Operating System Cisco Asa 5520 Firmware 9.10\(1.220\) All All All
Operating System Cisco Asa 5520 Firmware 9.10\(1.220\) All All All
Hardware Cisco Asa 5525-x - All All All
Hardware Cisco Asa 5525-x - All All All
Operating System Cisco Asa 5525-x Firmware 9.10\(1.220\) All All All
Operating System Cisco Asa 5525-x Firmware 9.10\(1.220\) All All All
Hardware Cisco Asa 5540 - All All All
Hardware Cisco Asa 5540 - All All All
Operating System Cisco Asa 5540 Firmware 9.10\(1.220\) All All All
Operating System Cisco Asa 5540 Firmware 9.10\(1.220\) All All All
Hardware Cisco Asa 5545-x - All All All
Hardware Cisco Asa 5545-x - All All All
Operating System Cisco Asa 5545-x Firmware 9.10\(1.220\) All All All
Operating System Cisco Asa 5545-x Firmware 9.10\(1.220\) All All All
Hardware Cisco Asa 5550 - All All All
Hardware Cisco Asa 5550 - All All All
Operating System Cisco Asa 5550 Firmware 9.10\(1.220\) All All All
Operating System Cisco Asa 5550 Firmware 9.10\(1.220\) All All All
Hardware Cisco Asa 5555-x - All All All
Hardware Cisco Asa 5555-x - All All All
Operating System Cisco Asa 5555-x Firmware 9.10\(1.220\) All All All
Operating System Cisco Asa 5555-x Firmware 9.10\(1.220\) All All All
Hardware Cisco Asa 5580 - All All All
Hardware Cisco Asa 5580 - All All All
Operating System Cisco Asa 5580 Firmware 9.10\(1.220\) All All All
Operating System Cisco Asa 5580 Firmware 9.10\(1.220\) All All All
Hardware Cisco Asa 5585-x - All All All
Hardware Cisco Asa 5585-x - All All All
Operating System Cisco Asa 5585-x Firmware 9.10\(1.220\) All All All
Operating System Cisco Asa 5585-x Firmware 9.10\(1.220\) All All All

References

ReferenceSourceLinkTags
Cisco Adaptive Security Appliance Software Kerberos Authentication Bypass Vulnerability CISCO tools.cisco.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report