CVE-2021-1402

Published Apr 29, 2021

Last updated 2 years ago

Overview

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.
Source: ykramarz@cisco.com
NVD status: Analyzed

Hype score: Not currently trending

Risk scores

CVSS 3.1

Type: Primary
Base score: 8.6
Impact score: 4
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Severity: HIGH

CVSS 3.0

Type: Secondary
Base score: 8.6
Impact score: 4
Exploitability score: 3.9
Vector string: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Severity: HIGH

CVSS 2.0

Type: Primary
Base score: 7.8
Impact score: 6.9
Exploitability score: 10
Vector string: AV:N/AC:L/Au:N/C:N/I:N/A:C

Weaknesses

nvd@nist.gov: CWE-20
ykramarz@cisco.com: CWE-119

Configurations

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Overview

Social media

Risk scores

CVSS 3.1

CVSS 3.0

CVSS 2.0

Weaknesses

Configurations

References