Multiple vulnerabilities in Pepperl+Fuchs IO-Link Master Series



Published: 2021-01-18
Risk High
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2020-12511
CVE-2020-12512
CVE-2020-12513
CVE-2020-12514
CWE-ID CWE-352
CWE-79
CWE-77
CWE-476
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Public exploit code for vulnerability #2 is available.
Public exploit code for vulnerability #3 is available.
Public exploit code for vulnerability #4 is available.
Vulnerable software
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IO-Link Master
Hardware solutions / Firmware

IO-Link Master DR-8-PNIO-T
Hardware solutions / Firmware

IO-Link Master DR-8-PNIO-P
Hardware solutions / Firmware

IO-Link Master DR-8-PNIO
Hardware solutions / Firmware

IO-Link Master 8-PNIO-L
Hardware solutions / Firmware

IO-Link Master 8-PNIO
Hardware solutions / Firmware

IO-Link Master 4-PNIO
Hardware solutions / Firmware

IO-Link Master DR-8-EIP-T
Hardware solutions / Firmware

IO-Link Master DR-8-EIP-P
Hardware solutions / Firmware

IO-Link Master 8-EIP-L
Hardware solutions / Firmware

IO-Link Master 8-EIP
Hardware solutions / Firmware

IO-Link Master 4-EIP
Hardware solutions / Firmware

Vendor PEPPERL+FUCHS

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Cross-site request forgery

EUVDB-ID: #VU49566

Risk: Low

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-12511

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin in the web interface. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

IO-Link Master: 1.5.28

IO-Link Master DR-8-PNIO-T: before 1.5.48

IO-Link Master DR-8-PNIO-P: before 1.5.48

IO-Link Master DR-8-PNIO: before 1.5.48

IO-Link Master 8-PNIO-L: before 1.5.48

IO-Link Master 8-PNIO: before 1.5.48

IO-Link Master 4-PNIO: before 1.5.48

IO-Link Master DR-8-EIP-T: before 1.5.48

IO-Link Master DR-8-EIP-P: before 1.5.48

IO-Link Master 8-EIP-L: before 1.5.48

IO-Link Master 8-EIP: before 1.5.48

IO-Link Master 4-EIP: before 1.5.48

External links

http://sec-consult.com/vulnerability-lab/advisory/multiple-vulnerabilities-in-pepperl-fuchs-io-link-master-series/


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, proof of concept for this vulnerability is available.

2) Cross-site scripting

EUVDB-ID: #VU49567

Risk: Low

CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-12512

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data within the POST request send to the "/Software" endpoint. A remote authenticated attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

IO-Link Master: 1.5.28

IO-Link Master DR-8-PNIO-T: before 1.5.48

IO-Link Master DR-8-PNIO-P: before 1.5.48

IO-Link Master DR-8-PNIO: before 1.5.48

IO-Link Master 8-PNIO-L: before 1.5.48

IO-Link Master 8-PNIO: before 1.5.48

IO-Link Master 4-PNIO: before 1.5.48

IO-Link Master DR-8-EIP-T: before 1.5.48

IO-Link Master DR-8-EIP-P: before 1.5.48

IO-Link Master 8-EIP-L: before 1.5.48

IO-Link Master 8-EIP: before 1.5.48

IO-Link Master 4-EIP: before 1.5.48

External links

http://sec-consult.com/vulnerability-lab/advisory/multiple-vulnerabilities-in-pepperl-fuchs-io-link-master-series/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

3) Command Injection

EUVDB-ID: #VU49568

Risk: Medium

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-12513

CWE-ID: CWE-77 - Command injection

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary commands on the target system.

The vulnerability exists due to improper input validation in the web-interface. A remote authenticated attacker can pass specially crafted data to the application and execute arbitrary commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

IO-Link Master: 1.5.28

IO-Link Master DR-8-PNIO-T: before 1.5.48

IO-Link Master DR-8-PNIO-P: before 1.5.48

IO-Link Master DR-8-PNIO: before 1.5.48

IO-Link Master 8-PNIO-L: before 1.5.48

IO-Link Master 8-PNIO: before 1.5.48

IO-Link Master 4-PNIO: before 1.5.48

IO-Link Master DR-8-EIP-T: before 1.5.48

IO-Link Master DR-8-EIP-P: before 1.5.48

IO-Link Master 8-EIP-L: before 1.5.48

IO-Link Master 8-EIP: before 1.5.48

IO-Link Master 4-EIP: before 1.5.48

External links

http://sec-consult.com/vulnerability-lab/advisory/multiple-vulnerabilities-in-pepperl-fuchs-io-link-master-series/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

4) NULL pointer dereference

EUVDB-ID: #VU49569

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-12514

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in strlen. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

IO-Link Master: 1.5.28

IO-Link Master DR-8-PNIO-T: before 1.5.48

IO-Link Master DR-8-PNIO-P: before 1.5.48

IO-Link Master DR-8-PNIO: before 1.5.48

IO-Link Master 8-PNIO-L: before 1.5.48

IO-Link Master 8-PNIO: before 1.5.48

IO-Link Master 4-PNIO: before 1.5.48

IO-Link Master DR-8-EIP-T: before 1.5.48

IO-Link Master DR-8-EIP-P: before 1.5.48

IO-Link Master 8-EIP-L: before 1.5.48

IO-Link Master 8-EIP: before 1.5.48

IO-Link Master 4-EIP: before 1.5.48

External links

http://sec-consult.com/vulnerability-lab/advisory/multiple-vulnerabilities-in-pepperl-fuchs-io-link-master-series/


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, proof of concept for this vulnerability is available.



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