Vulnerability identifier: #VU51623

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21087

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ColdFusion
Server applications / Application servers

Vendor: Adobe

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: 2021, 2018 - 2018 Update 10, 2016 - 2016 Update 16

---

External links
http://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.