CVE-2021-29440

Grav is a file based Web-platform. Twig processing of static pages can be enabled in the front matter by any administrative user allowed to create or edit pages. As the Twig processor runs unsandboxed, this behavior can be used to gain arbitrary code execution and elevate privileges on the instance. The issue was addressed in version 1.7.11.

CVSS v3.0 7.2 HIGH
CVSS v2.0 6.5 MEDIUM

7.2^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://packagist.org/packages/getgrav/grav	Product Third Party Advisory
https://github.com/getgrav/grav/security/advisories/GHSA-g8r4-p96j-xfxc	Third Party Advisory
http://packetstormsecurity.com/files/162987/Grav-CMS-1.7.10-Server-Side-Template-Injection.html	Exploit Third Party Advisory VDB Entry
https://blog.sonarsource.com/grav-cms-code-execution-vulnerabilities	Exploit Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*

Information

Published : 2021-04-13 13:15

Updated : 2022-11-08 19:12

NVD link : CVE-2021-29440

Mitre link : CVE-2021-29440

JSON object : View

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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Products Affected

getgrav

grav

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