Description
A 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.
Published: 2020-05-06
Score: 9.8 Critical
EPSS: 1.2% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2020-24396 A 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.
History

Fri, 15 Nov 2024 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Subscriptions

Cisco Adaptive Security Appliance Software Asa 5505 Asa 5505 Firmware Asa 5510 Asa 5510 Firmware Asa 5512-x Asa 5512-x Firmware Asa 5515-x Asa 5515-x Firmware Asa 5520 Asa 5520 Firmware Asa 5525-x Asa 5525-x Firmware Asa 5540 Asa 5540 Firmware Asa 5545-x Asa 5545-x Firmware Asa 5550 Asa 5550 Firmware Asa 5555-x Asa 5555-x Firmware Asa 5580 Asa 5580 Firmware Asa 5585-x Asa 5585-x Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2024-11-15T17:27:34.249Z

Reserved: 2019-12-12T00:00:00.000Z

Link: CVE-2020-3125

cve-icon Vulnrichment

Updated: 2024-08-04T07:23:59.964Z

cve-icon NVD

Status : Modified

Published: 2020-05-06T17:15:11.807

Modified: 2024-11-21T05:30:22.623

Link: CVE-2020-3125

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses