Multiple vulnerabilities in Siemens SCALANCE W1750D



Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2021-37726
CVE-2021-37732
CVE-2021-37735
CWE-ID CWE-119
CWE-78
CWE-134
Exploitation vector Network
Public exploit N/A
Vulnerable software
 SCALANCE W1750D
Hardware solutions / Firmware

Vendor Siemens

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU57099

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-37726

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error when processing PAPI requests sent to port 8211/UDP. A remote attacker can create a specially crafted requests to the system, trigger memory corruption and execute arbitrary code on the target system.

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

Mitigation

Install update from vendor's website.

Vulnerable software versions

SCALANCE W1750D: before 8.7.1.3

CPE2.3 External links

https://cert-portal.siemens.com/productcert/txt/ssa-917476.txt


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) OS Command Injection

EUVDB-ID: #VU57134

Risk: Low

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-37732

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation in the web interface. A remote privileged user can send a specially crafted HTTP request to the application and execute arbitrary OS commands on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

SCALANCE W1750D: before 8.7.1.3

CPE2.3 External links

https://cert-portal.siemens.com/productcert/txt/ssa-917476.txt


Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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

3) Format string error

EUVDB-ID: #VU57136

Risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-37735

CWE-ID: CWE-134 - Use of Externally-Controlled Format String

Exploit availability: No

Description

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

The vulnerability exists due to a format string error in the instant command line interface. A remote privileged user can supply a specially crafted input that contains format string specifiers and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

SCALANCE W1750D: before 8.7.1.3

CPE2.3 External links

https://cert-portal.siemens.com/productcert/txt/ssa-917476.txt


Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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



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