CVE-2018-7830

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 where a denial of service can occur for ~1 minute by sending a specially crafted HTTP request.

Existe una vulnerabilidad de neutralización incorrecta de secuencias CRLF en cabeceras HTTP ("separación de respuesta HTTP") en los servidores web embebidos en todos los productos Modicon M340, Premium, Quantum PLCs y BMXNOR0200, donde puede ocurrir una denegación de servicio (DoS) durante 1 minuto aproximadamente mediante el envío de una petición HTTP especialmente manipulada.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-03-08 CVE Reserved
2018-11-30 CVE Published
2023-03-07 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC
https://www.tenable.com/security/research/tra-2018-38	2024-08-05

URL	Date	SRC

URL	Date	SRC
https://www.schneider-electric.com/en/download/document/SEVD-2018-327-01	2018-12-28

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Schneider-electric Search vendor "Schneider-electric"	Modicom M340 Firmware Search vendor "Schneider-electric" for product "Modicom M340 Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Modicom M340 Search vendor "Schneider-electric" for product "Modicom M340"	-	-	Safe
Schneider-electric Search vendor "Schneider-electric"	Modicom Premium Firmware Search vendor "Schneider-electric" for product "Modicom Premium Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Modicom Premium Search vendor "Schneider-electric" for product "Modicom Premium"	*	-	Safe
Schneider-electric Search vendor "Schneider-electric"	Modicom Quantum Firmware Search vendor "Schneider-electric" for product "Modicom Quantum Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Modicom Quantum Search vendor "Schneider-electric" for product "Modicom Quantum"	*	-	Safe
Schneider-electric Search vendor "Schneider-electric"	Modicom Bmxnor0200h Firmware Search vendor "Schneider-electric" for product "Modicom Bmxnor0200h Firmware"	*	-	Affected	in	Schneider-electric Search vendor "Schneider-electric"	Modicom Bmxnor0200h Search vendor "Schneider-electric" for product "Modicom Bmxnor0200h"	-	-	Safe