Remote code execution in ZK Framework



Risk Critical
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-36537
CWE-ID CWE-20
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerable software
 ZK Framework
Web applications / CMS

Vendor Potix Corporation

Security Bulletin

This security bulletin contains one critical risk vulnerability.

1) Input validation error

EUVDB-ID: #VU72701

Risk: Critical

CVSSv4.0: 9.3 [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:A/U:Red]

CVE-ID: CVE-2022-36537

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

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

The vulnerability exists due to insufficient validation of user-supplied input in the AuUploader component. A remote non-authenticated attacker can send a specially crafted HTTP POST request to the "/zkau/upload" URL and execute arbitrary code on the server.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

ZK Framework: 8.0.0 - 9.6.1

CPE2.3 External links

https://tracker.zkoss.org/browse/ZK-5150
https://archive.is/r3eGg


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?

Yes. This vulnerability is being exploited in the wild.



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