7.5
CVSSv3

CVE-2021-1223

Published: 13/01/2021 Updated: 22/05/2023
CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 445
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Vulnerability Summary

Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote malicious user to bypass a configured file policy for HTTP. The vulnerability is due to incorrect handling of an HTTP range header. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the malicious user to bypass configured file policy for HTTP packets and deliver a malicious payload.

Vulnerability Trend

Vulnerable Product Search on Vulmon Subscribe to Product

cisco firepower management center 2.9.14.0

cisco firepower management center 2.9.15

cisco firepower management center 2.9.16

cisco firepower threat defense

cisco ios_xe

snort snort

Vendor Advisories

Debian Bug report logs - #1021276 snort: CVE-2020-3315 CVE-2021-1223 CVE-2021-1224 CVE-2021-1494 CVE-2021-1495 CVE-2021-34749 CVE-2021-40114 Package: src:snort; Maintainer for src:snort is Javier Fernández-Sanguino Peña <jfs@debianorg>; Reported by: Moritz Mühlenhoff <jmm@inutilorg> Date: Tue, 4 Oct 2022 19:54:0 ...
Multiple security vulnerabilities were discovered in snort, a flexible Network Intrusion Detection System, which could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or bypass filtering technology on an affected device and ex-filtrate data from a compromised host For the stable distribution (bullseye), these ...
Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP The vulnerability is due to incorrect handling of an HTTP range header An attacker could exploit this vulnerability by sending crafted HTTP packets through an affect ...