Vulnerability identifier: #VU51951

Vulnerability risk: High

CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2021-30055

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Knowage Suite
Web applications / Other software

Vendor: Engineering

Description

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

The vulnerability exists due to improper input validation in the "par_year" parameter in the documentexecution/url analytics driver component. A remote 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 update from vendor's website.

Vulnerable software versions

Knowage Suite: 5.0 - 7.1

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External links
http://github.com/piuppi/Proof-of-Concepts/blob/main/Engineering/SQLi-KnowageSuite.md

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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. However, proof of concept for this vulnerability is available.