Remote code execution in Grails

1) Code Injection

EUVDB-ID: #VU65766

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-2022-35912

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation in the grails-databinding. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Grails: 3.3.10 - 5.2.0

CPE2.3

• cpe:2.3:a:grails.org:grails:*:*:*:*:*:*:*:*
• cpe:2.3:a:grails.org:grails:4.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:grails.org:grails:4.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:grails.org:grails:4.0.4:*:*:*:*:*:*:*

External links

https://github.com/grails/grails-core/security/advisories/GHSA-6rh6-x8ww-9h97
https://github.com/grails/grails-core/issues/12626
https://grails.org/blog/2022-07-18-rce-vulnerability.html
https://www.openwall.com/lists/oss-security/2022/07/20/4

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.