Vulnerability identifier: #VU21973

Vulnerability risk: Medium

CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-18202

CWE-ID: CWE-73

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WAGO PFC100 Series 750-8101/025-000
Hardware solutions / Firmware
WAGO PFC100 Series 750-8102/025-000
Hardware solutions / Firmware
WAGO PFC100 Series 750-8102
Hardware solutions / Firmware
WAGO PFC100 Series 750-8100
Hardware solutions / Firmware
WAGO PFC100 Series 750-8101
Hardware solutions / Firmware
WAGO PFC200 Series 750-8206/040-001
Hardware solutions / Firmware
WAGO PFC200 Series 750-8208/025-001
Hardware solutions / Firmware
WAGO PFC200 Series 750-8215
Hardware solutions / Firmware
WAGO PFC200 Series 750-8212/000-100
Hardware solutions / Firmware
WAGO PFC200 Series 750-8206/040-000
Hardware solutions / Firmware
WAGO PFC200 Series 750-8202/040-000
Hardware solutions / Firmware
WAGO PFC200 Series 750-8216/025-000
Hardware solutions / Firmware
WAGO PFC200 Series 750-8216/025-001
Hardware solutions / Firmware
WAGO PFC200 Series 750-8212/025-000
Hardware solutions / Firmware
WAGO PFC200 Series 750-8212/025-002
Hardware solutions / Firmware
WAGO PFC200 Series 750-8216
Hardware solutions / Firmware
WAGO PFC200 Series 750-8214
Hardware solutions / Firmware
WAGO PFC200 Series 750-8213
Hardware solutions / Firmware
WAGO PFC200 Series 750-8212/025-001
Hardware solutions / Firmware
WAGO PFC200 Series 750-8212
Hardware solutions / Firmware
WAGO PFC200 Series 750-8208/025-000
Hardware solutions / Firmware
WAGO PFC200 Series 750-8208
Hardware solutions / Firmware
WAGO PFC200 Series 750-8207/025-001
Hardware solutions / Firmware
WAGO PFC200 Series 750-8207/025-000
Hardware solutions / Firmware
WAGO PFC200 Series 750-8207
Hardware solutions / Firmware
WAGO PFC200 Series 750-8206/025-001
Hardware solutions / Firmware
WAGO PFC200 Series 750-8206/025-000
Hardware solutions / Firmware
WAGO PFC200 Series 750-8206
Hardware solutions / Firmware
WAGO PFC200 Series 750-8204/025-000
Hardware solutions / Firmware
WAGO PFC200 Series 750-8204
Hardware solutions / Firmware
WAGO PFC200 Series 750-8203/025-000
Hardware solutions / Firmware
WAGO PFC200 Series 750-8203
Hardware solutions / Firmware
WAGO PFC200 Series 750-8202/040-001
Hardware solutions / Firmware
WAGO PFC200 Series 750-8202/025-002
Hardware solutions / Firmware
WAGO PFC200 Series 750-8202/025-001
Hardware solutions / Firmware
WAGO PFC200 Series 750-8202/025-000
Hardware solutions / Firmware
WAGO PFC200 Series 750-8202
Hardware solutions / Firmware

Vendor: WAGO

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the affected software allows check paths or file names that are used in filesystem operations. A remote attacker can send a specially crafted HTTP request, identify installed software and gain access to sensitive data (e.g. session data stored in the file system).

Mitigation
Install updates FW12 from vendor's website.

Vulnerable software versions

WAGO PFC100 Series 750-8101/025-000: All versions

WAGO PFC100 Series 750-8102/025-000: All versions

WAGO PFC100 Series 750-8102: All versions

WAGO PFC100 Series 750-8100: All versions

WAGO PFC100 Series 750-8101: All versions

WAGO PFC200 Series 750-8206/040-001: All versions

WAGO PFC200 Series 750-8208/025-001: All versions

WAGO PFC200 Series 750-8215: All versions

WAGO PFC200 Series 750-8212/000-100: All versions

WAGO PFC200 Series 750-8206/040-000: All versions

WAGO PFC200 Series 750-8202/040-000: All versions

WAGO PFC200 Series 750-8216/025-000: All versions

WAGO PFC200 Series 750-8216/025-001: All versions

WAGO PFC200 Series 750-8212/025-000: All versions

WAGO PFC200 Series 750-8212/025-002: All versions

WAGO PFC200 Series 750-8216: All versions

WAGO PFC200 Series 750-8214: All versions

WAGO PFC200 Series 750-8213: All versions

WAGO PFC200 Series 750-8212/025-001: All versions

WAGO PFC200 Series 750-8212: All versions

WAGO PFC200 Series 750-8208/025-000: All versions

WAGO PFC200 Series 750-8208: All versions

WAGO PFC200 Series 750-8207/025-001: All versions

WAGO PFC200 Series 750-8207/025-000: All versions

WAGO PFC200 Series 750-8207: All versions

WAGO PFC200 Series 750-8206/025-001: All versions

WAGO PFC200 Series 750-8206/025-000: All versions

WAGO PFC200 Series 750-8206: All versions

WAGO PFC200 Series 750-8204/025-000: All versions

WAGO PFC200 Series 750-8204: All versions

WAGO PFC200 Series 750-8203/025-000: All versions

WAGO PFC200 Series 750-8203: All versions

WAGO PFC200 Series 750-8202/040-001: All versions

WAGO PFC200 Series 750-8202/025-002: All versions

WAGO PFC200 Series 750-8202/025-001: All versions

WAGO PFC200 Series 750-8202/025-000: All versions

WAGO PFC200 Series 750-8202: All versions

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External links
http://cert.vde.com/de-de/advisories/vde-2019-017

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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.