#VU15889 HTTP header injection in Siemens products - CVE-2018-13814

Vulnerability identifier: #VU15889

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-13814

CWE-ID: CWE-113

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SIMATIC HMI Comfort Panels 4”-22”
Server applications / SCADA systems
SIMATIC HMI Comfort Outdoor Panels 7” & 15”
Server applications / SCADA systems
SIMATIC HMI KTP900F
Server applications / SCADA systems
SIMATIC HMI KTP900
Server applications / SCADA systems
SIMATIC HMI KTP700F
Server applications / SCADA systems
SIMATIC HMI KTP700
Server applications / SCADA systems
SIMATIC HMI KTP400F
Server applications / SCADA systems
SIMATIC WinCC Runtime Professional
Server applications / SCADA systems
SIMATIC WinCC Runtime Advanced
Server applications / SCADA systems
SIMATIC WinCC (TIA Portal)
Server applications / SCADA systems
SIMATIC HMI MP Mobile Panel
Server applications / SCADA systems
SIMATIC HMI OP
Server applications / SCADA systems
SIMATIC HMI MP
Server applications / SCADA systems
SIMATIC HMI TP
Server applications / SCADA systems

Vendor: Siemens

Description

The vulnerability allows a remote attacker to inject HTTP header on the target system.

The vulnerability exists due to insufficient validation of user-supplied input. A remote unauthenticated attacker can trick the victim into clicking on a malicious link and use integrated web server (Port 80/TCP and Port 443/TCP) inject HTTP headers.

Mitigation
Update all affected products to version 15 Update 4.

Vulnerable software versions

SIMATIC HMI Comfort Panels 4”-22”: before 15 Update 4

SIMATIC HMI Comfort Outdoor Panels 7” & 15”: before 15 Update 4

SIMATIC HMI KTP900F: before 15 Update 4

SIMATIC HMI KTP900: before 15 Update 4

SIMATIC HMI KTP700F: before 15 Update 4

SIMATIC HMI KTP700: before 15 Update 4

SIMATIC HMI KTP400F: before 15 Update 4

SIMATIC WinCC Runtime Professional: before 15 Update 4

SIMATIC WinCC Runtime Advanced: before 15 Update 4

SIMATIC WinCC (TIA Portal): before 15 Update 4

SIMATIC HMI MP Mobile Panel: before 15 Update 4

SIMATIC HMI OP: before 15 Update 4

SIMATIC HMI MP: before 15 Update 4

SIMATIC HMI TP: before 15 Update 4

---

External links
https://ics-cert.us-cert.gov/advisories/ICSA-18-317-03

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.