Arbitrary file upload in Umbraco CMS

1) Arbitrary file upload

EUVDB-ID: #VU36764

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-2014-10074

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

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

Umbraco before 7.2.0 has a remote PHP code execution vulnerability because Umbraco.Web.UI/config/umbracoSettings.Release.config does not block the upload of .php files.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Umbraco CMS: 7.0.0 - 7.1.10

CPE2.3

• cpe:2.3:a:umbraco:umbraco:7.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:umbraco:umbraco:7.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:umbraco:umbraco:7.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:umbraco:umbraco:7.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:umbraco:umbraco:*:*:*:*:*:*:*:*
• cpe:2.3:a:umbraco:umbraco:7.1.0:*:*:*:*:*:*:*

External links

https://issues.umbraco.org/issue/U4-5901
https://github.com/Umbraco/Umbraco-CMS/commit/cad06502235acabf7fb7dca779d2f78f08547e39

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.