Vulnerability · Published Oct 21, 2020 · Assigned by cisco

CVE-2020-3317Cisco Firepower Threat Defense Software SSL Input Validation Denial of Service Vulnerability

Medium 5.8

In plain English

A medium-severity improper input validation in Cisco Firepower Threat Defense Software from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities).

Severity (CVSS 3.0)5.8Medium

Exploit odds (30 days)1.0%top 38.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability in the ssl_inspection component of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to crash Snort instances. The vulnerability is due to insufficient input validation in the ssl_inspection component. An attacker could exploit this vulnerability by sending a malformed TLS packet through a Cisco Adaptive Security Appliance (ASA). A successful exploit could allow the attacker to crash a Snort instance, resulting in a denial of service (DoS) condition.

Affected products (as reported)

Vendor	Product	Versions
Cisco	Cisco Firepower Threat Defense Software	n/a

Weakness: CWE-20 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

References

20201021 Cisco Firepower Threat Defense Software SSL Input Validation Denial of Service Vulnerability vendor-advisory, x_refsource_CISCO