CVE-2018-7830 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://www.schneider-electric.com/en/download/document/SEVD-2018-327-01/ https://www.tenable.com/security/research/tra-2018-38

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5