CVE-2018-7830
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.42% probability · 83th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-113
- Affected
- schneider-electric/modicom m340 firmware · schneider-electric/modicom premium firmware · schneider-electric/modicom quantum firmware · schneider-electric/modicom bmxnor0200h firmware
- Source
- cybersecurity@se.com
References
- https://www.schneider-electric.com/en/download/document/SEVD-2018-327-01/Vendor Advisory
- https://www.tenable.com/security/research/tra-2018-38Exploit, Third Party Advisory
- https://www.schneider-electric.com/en/download/document/SEVD-2018-327-01/Vendor Advisory
- https://www.tenable.com/security/research/tra-2018-38Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.