Zero-day vulnerability in ColdFusion

Dangerous file upload
CVE-2019-7816

Vulnerability details

Advisory: SB2019030102 - Dangerous file upload in Adobe ColdFusion

Vulnerable component: ColdFusion

CVE-ID: CVE-2019-7816

CVSSv3 score: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type

Description:

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

The vulnerability exists due to insufficient validation of user-supplied input when processing file uploads. A remote attacker can upload and execute arbitrary code on the target system with privileges of the ColdFusion service. Successful exploitation of the vulnerability requires that the attacker has the ability to upload files.

Note, this vulnerability is being actively exploited in the wild.

External links:

https://helpx.adobe.com/security/products/coldfusion/apsb19-14.html

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.