CVE-2021-29440
CVSS V2 Medium 6.5
CVSS V3 High 7.2
Description
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.
Overview
- CVE ID
- CVE-2021-29440
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-04-13T20:15:22
- Last Modified Date
- 2022-11-09T03:12:15
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:* | 1 | OR | 1.7.11 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.5
- Severity
- MEDIUM
- Exploitability Score
- 8
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.2
- Base Severity
- HIGH
- Exploitability Score
- 1.2
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| 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 |
| https://github.com/getgrav/grav/security/advisories/GHSA-g8r4-p96j-xfxc | Third Party Advisory |
| https://packagist.org/packages/getgrav/grav | Product Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-29440 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29440 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:12:16 | Added to TrackCVE | |||
| 2022-12-06 01:52:45 | 2021-04-13T20:15Z | 2021-04-13T20:15:22 | CVE Published Date | updated |
| 2022-12-06 01:52:46 | 2022-11-09T03:12:15 | CVE Modified Date | updated | |
| 2022-12-06 01:52:46 | Analyzed | Vulnerability Status | updated | |
| 2022-12-06 01:52:50 | References | updated |