Information Exposure Affecting snort package, versions *


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.18% (56th percentile)

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  • Snyk IDSNYK-DEBIAN9-SNORT-2767258
  • published19 Apr 2022
  • disclosed18 Aug 2021

Introduced: 18 Aug 2021

CVE-2021-34749  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

There is no fixed version for Debian:9 snort.

NVD Description

Note: Versions mentioned in the description apply only to the upstream snort package and not the snort package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

A vulnerability in Server Name Identification (SNI) request filtering of Cisco Web Security Appliance (WSA), Cisco Firepower Threat Defense (FTD), and the Snort detection engine could allow an unauthenticated, remote attacker to bypass filtering technology on an affected device and exfiltrate data from a compromised host. This vulnerability is due to inadequate filtering of the SSL handshake. An attacker could exploit this vulnerability by using data from the SSL client hello packet to communicate with an external server. A successful exploit could allow the attacker to execute a command-and-control attack on a compromised host and perform additional data exfiltration attacks.

CVSS Scores

version 3.1