Multiple vulnerabilities in Siemens SCALANCE X-200RNA Switch Devices

1) Cross-site scripting

EUVDB-ID: #VU70389

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-46350

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 in the integrated web server. A remote 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

SCALANCE X204RNA (HSR): before 3.2.7

SCALANCE X204RNA (PRP): before 3.2.7

SCALANCE X204RNA EEC (HSR): before 3.2.7

SCALANCE X204RNA EEC (PRP): before 3.2.7

SCALANCE X204RNA EEC (PRP/HSR): before 3.2.7

External links

http://cert-portal.siemens.com/productcert/pdf/ssa-363821.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.

2) Resource exhaustion

EUVDB-ID: #VU70390

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-46351

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker on the local network can send specially crafted PROFINET DCP packets, trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SCALANCE X204RNA (HSR): before 3.2.7

SCALANCE X204RNA (PRP): before 3.2.7

SCALANCE X204RNA EEC (HSR): before 3.2.7

SCALANCE X204RNA EEC (PRP): before 3.2.7

SCALANCE X204RNA EEC (PRP/HSR): before 3.2.7

External links

http://cert-portal.siemens.com/productcert/pdf/ssa-363821.pdf

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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

3) Resource exhaustion

EUVDB-ID: #VU70391

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-46352

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can send specially crafted PROFINET DCP packets, trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SCALANCE X204RNA (HSR): before 3.2.7

SCALANCE X204RNA (PRP): before 3.2.7

SCALANCE X204RNA EEC (HSR): before 3.2.7

SCALANCE X204RNA EEC (PRP): before 3.2.7

SCALANCE X204RNA EEC (PRP/HSR): before 3.2.7

External links

http://cert-portal.siemens.com/productcert/pdf/ssa-363821.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.

4) Use of insufficiently random values

EUVDB-ID: #VU70392

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-46353

CWE-ID: CWE-330 - Use of Insufficiently Random Values

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the webserver of affected devices calculates session ids and nonces in an insecure manner. A remote attacker can brute-force session ids and hijack existing sessions.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SCALANCE X204RNA (HSR): before 3.2.7

SCALANCE X204RNA (PRP): before 3.2.7

SCALANCE X204RNA EEC (HSR): before 3.2.7

SCALANCE X204RNA EEC (PRP): before 3.2.7

SCALANCE X204RNA EEC (PRP/HSR): before 3.2.7

External links

http://cert-portal.siemens.com/productcert/pdf/ssa-363821.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.

5) Improper access control

EUVDB-ID: #VU70393

Risk: Low

CVSSv3.1: 2.3 [CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-46354

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in the webserver. A remote attacker on the local network can bypass implemented security restrictions and extract confidential session information under certain circumstances.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SCALANCE X204RNA (HSR): before 3.2.7

SCALANCE X204RNA (PRP): before 3.2.7

SCALANCE X204RNA EEC (HSR): before 3.2.7

SCALANCE X204RNA EEC (PRP): before 3.2.7

SCALANCE X204RNA EEC (PRP/HSR): before 3.2.7

External links

http://cert-portal.siemens.com/productcert/pdf/ssa-363821.pdf

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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

6) Information disclosure

EUVDB-ID: #VU70394

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-46355

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

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

The vulnerability exists due to excessive data output by the application in the HTTP Referer. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SCALANCE X204RNA (HSR): before 3.2.7

SCALANCE X204RNA (PRP): before 3.2.7

SCALANCE X204RNA EEC (HSR): before 3.2.7

SCALANCE X204RNA EEC (PRP): before 3.2.7

SCALANCE X204RNA EEC (PRP/HSR): before 3.2.7

External links

http://cert-portal.siemens.com/productcert/pdf/ssa-363821.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.