#VU15301 Man-in-the-middle attack in SCALANCE W1750D - CVE-2017-13099

Vulnerability identifier: #VU15301

Vulnerability risk: Low

CVSSv4.0: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Clear]

CVE-ID: CVE-2017-13099

CWE-ID: CWE-300

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
SCALANCE W1750D
Hardware solutions / Firmware

Vendor: Siemens

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The vulnerability exists due to man-in-the-middle attack. A remote attacker can conduct MITM-attack, observe TLS traffic between a legitimate user and the device and decrypt the TLS traffic.

Mitigation
Update to version 8.3.0.1.

Vulnerable software versions

SCALANCE W1750D: before 8.3.0.1

---

External links
https://cert-portal.siemens.com/productcert/pdf/ssa-464260.pdf

---

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. However, a fully functional exploit for this vulnerability is available.