#VU57094 OS Command Injection in Emerson products - CVE-2021-81019

Vulnerability identifier: #VU57094

Vulnerability risk: Medium

CVSSv4.0: 5.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-81019

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WirelessHART 1410 Gateway
Hardware solutions / Firmware
WirelessHART 1410D Gateway
Hardware solutions / Firmware
WirelessHART 1420 Gateway
Hardware solutions / Firmware

Vendor: Emerson

Description

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

The vulnerability exists due to improper input validation within the passphrase. A remote authenticated attacker can pass specially crafted data to the application and execute arbitrary OS 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

WirelessHART 1410 Gateway: before 4.7.94

WirelessHART 1410D Gateway: before 4.7.94

WirelessHART 1420 Gateway: before 4.7.94

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External links
https://ics-cert.us-cert.gov/advisories/icsa-21-278-02

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?