Arbitrary file upload in ColdFusion - CVE-2019-7838
Published: June 11, 2019
Vulnerability identifier: #VU18738
CSH Severity: High
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-7838
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to an error when processing file uplaods. A remote attacker can bypass file extensions blacklist, upload and execute arbitrary file on the server.
Note: exploitation of this vulnerability is possible if file upload directory is web accessible.
Affected software
ColdFusion
How to mitigate CVE-2019-7838
Install updates from vendor's website.
ColdFusion - addressed in versions 11 Update 19, 2016 Update 11, 2018 Update 4