CVE-2024-20363

Severity Score

5.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

Multiple Cisco products are affected by a vulnerability in the Snort Intrusion Prevention System (IPS) rule engine that could allow an unauthenticated, remote attacker to bypass the configured rules on an affected system. This vulnerability is due to incorrect HTTP packet handling. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass configured IPS rules and allow uninspected traffic onto the network.

Varios productos de Cisco se ven afectados por una vulnerabilidad en el motor de reglas del Snort Intrusion Prevention System (IPS) que podría permitir a un atacante remoto no autenticado eludir las reglas configuradas en un sistema afectado. Esta vulnerabilidad se debe a un manejo incorrecto de paquetes HTTP. Un atacante podría aprovechar esta vulnerabilidad enviando paquetes HTTP manipulados a través de un dispositivo afectado. Un exploit exitoso podría permitir al atacante eludir las reglas IPS configuradas y permitir el ingreso de tráfico no inspeccionado a la red.

*Credits: N/A

CVSS Scores

Ciscov3.1 5.8

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

Low

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-11-08 CVE Reserved
2024-05-22 CVE Published
2024-05-23 EPSS Updated
2024-08-01 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-290: Authentication Bypass by Spoofing

CAPEC

References (1)

URL	Tag	Source
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort3-ips-bypass-uE69KBMd

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"		Cisco Firepower Threat Defense Software Search vendor "Cisco" for product "Cisco Firepower Threat Defense Software"				7.4.0 Search vendor "Cisco" for product "Cisco Firepower Threat Defense Software" and version "7.4.0"		en		Affected
Cisco Search vendor "Cisco"		Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software"				17.6.4 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.6.4"		en		Affected
Cisco Search vendor "Cisco"		Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software"				17.6.5 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.6.5"		en		Affected
Cisco Search vendor "Cisco"		Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software"				17.12.1 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.12.1"		en		Affected
Cisco Search vendor "Cisco"		Cisco UTD SNORT IPS Engine Software Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software"				17.12.2 Search vendor "Cisco" for product "Cisco UTD SNORT IPS Engine Software" and version "17.12.2"		en		Affected