#VU46178 Code Injection in openSIS - CVE-2020-6143

Vulnerability identifier: #VU46178

Vulnerability 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-2020-6143

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
openSIS
Web applications / CMS

Vendor: Open Solutions for Education

Description

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

The vulnerability exists due to improper input validation in the password variable in "install/Step5.php". A remote attacker can send a specially crafted request and execute arbitrary code 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

openSIS: 7.0 - 7.3

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External links
https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1083

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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.