Description
A vulnerability in the software-based SSL/TLS message handler of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of SSL/TLS messages when the device performs software-based SSL decryption. An attacker could exploit this vulnerability by sending a crafted SSL/TLS message through an affected device. SSL/TLS messages sent to an affected device do not trigger this vulnerability. A successful exploit could allow the attacker to cause a process to crash. This crash would then trigger a reload of the device. No manual intervention is needed to recover the device after the reload.
Published: 2021-04-29
Score: 8.6 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-6869 A vulnerability in the software-based SSL/TLS message handler of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of SSL/TLS messages when the device performs software-based SSL decryption. An attacker could exploit this vulnerability by sending a crafted SSL/TLS message through an affected device. SSL/TLS messages sent to an affected device do not trigger this vulnerability. A successful exploit could allow the attacker to cause a process to crash. This crash would then trigger a reload of the device. No manual intervention is needed to recover the device after the reload.
History

Sat, 09 Nov 2024 00:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Cisco Asa 5512-x Asa 5515-x Asa 5525-x Asa 5545-x Asa 5555-x Firepower 1010 Firepower 1120 Firepower 1140 Firepower 1150 Firepower 2110 Firepower 2120 Firepower 2130 Firepower 2140 Firepower Threat Defense Firepower Threat Defense Virtual Isa 3000
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2024-11-08T23:25:17.062Z

Reserved: 2020-11-13T00:00:00.000Z

Link: CVE-2021-1402

cve-icon Vulnrichment

Updated: 2024-08-03T16:11:16.984Z

cve-icon NVD

Status : Modified

Published: 2021-04-29T18:15:08.923

Modified: 2024-11-21T05:44:16.410

Link: CVE-2021-1402

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses