Remote code execution in Adobe ColdFusion

1) Input validation error

EUVDB-ID: #VU51623

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-2021-21087

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input. A remote non-authenticated attacker can send specially crafted data to the application and execute arbitrary code on the system.

Mitigation

Install updates from vendor's website.

NOTE, Adobe recommends updating your ColdFusion JDK/JRE to the latest version of the LTS releases for 1.8 and JDK 11. Applying the ColdFusion update without a corresponding JDK update will NOT secure the server.

Please, see the vendor's advisory for details.

Vulnerable software versions

ColdFusion: 2016 - 2021

CPE2.3

• cpe:2.3:a:adobe:coldfusion:*:*:*:*:*:*:*:*
• cpe:2.3:a:adobe:coldfusion:2016:Update_1:*:*:*:*:*:*
• cpe:2.3:a:adobe:coldfusion:2016:Update_2:*:*:*:*:*:*
• cpe:2.3:a:adobe:coldfusion:2016:Update_3:*:*:*:*:*:*
• cpe:2.3:a:adobe:coldfusion:2016:Update_12:*:*:*:*:*:*

External links

https://helpx.adobe.com/security/products/coldfusion/apsb21-16.html

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.