CVE-2024-34082 – getgrav/grav

Package

Manager: composer
Name: getgrav/grav
Vulnerable Version: >=0 <1.7.46

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N

EPSS: 0.00112 pctl0.30295

Details

Grav Vulnerable to Arbitrary File Read to Account Takeover ### Summary A low privilege user account with page edit privilege can read any server files using Twig Syntax. This includes Grav user account files - /grav/user/accounts/*.yaml. This file stores hashed user password, 2FA secret, and the password reset token. This can allow an adversary to compromise any registered account by resetting a password for a user to get access to the password reset token from the file or by cracking the hashed password. ### Proof Of Concept `{{ read_file('/var/www/html/grav/user/accounts/riri.yaml') }}` Use the above Twig template syntax in a page and observe that the administrator riri's authentication details are exposed accessible by any unauthenticated user.  As an additional proof of concept for reading system files, observe the `/etc/passwd` file read using the following Twig syntax: `{{ read_file('/etc/passwd') }}`  ### Impact This can allow a low privileged user to perform a full account takeover of other registered users including Adminsitrators. This can also allow an adversary to read any file in the web server.

Metadata

Created: 2024-05-15T17:15:51Z
Modified: 2024-05-15T19:35:22Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/05/GHSA-f8v5-jmfh-pr69/GHSA-f8v5-jmfh-pr69.json
CWE IDs: ["CWE-22", "CWE-269"]
Alternative ID: GHSA-f8v5-jmfh-pr69
Finding: F063
Auto approve: 1