Remote code execution in Grav
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-29440 |
| CWE-ID | CWE-94 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
Grav CMS Web applications / CMS |
| Vendor | Grav CMS |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Code Injection
EUVDB-ID: #VU52363
Risk: Medium
CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2021-29440
CWE-ID:
CWE-94 - Improper Control of Generation of Code ('Code Injection')
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to the enablement of processing of static pages. A remote authenticated attacker can send a specially crafted request and execute arbitrary code on the target system with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsGrav CMS: 0.1.0 - 1.7.10
External linkshttp://github.com/getgrav/grav/security/advisories/GHSA-g8r4-p96j-xfxc
http://packagist.org/packages/getgrav/grav
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
