SB2023061920 - Multiple vulnerabilities in Grav CMS

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Main Vulnerability Database SB2023061920

SB2023061920 - Multiple vulnerabilities in Grav CMS

Published: June 19, 2023

Security Bulletin ID SB2023061920
Severity
Low
Patch available
YES
Number of vulnerabilities 7
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 7 secuirty vulnerabilities.


1) Code Injection (CVE-ID: CVE-2023-30592)

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

The vulnerability exists due to Server Side Template Injection (SSTI) issue in the Utils::isDangerousFunction() function. A remote administrator can send a specially crafted request and execute arbitrary code on the target system.


2) Code Injection (CVE-ID: CVE-2023-30593)

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

The vulnerability exists due to Server Side Template Injection (SSTI) issue in the Utils::isDangerousFunction() function. A remote administrator can send a specially crafted request and execute arbitrary code on the target system.


3) Code Injection (CVE-ID: CVE-2023-30594)

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

The vulnerability exists due to Server Side Template Injection (SSTI) issue in the Utils::isDangerousFunction() function. A remote administrator can send a specially crafted request and execute arbitrary code on the target system.


4) Code Injection (CVE-ID: CVE-2023-34253)

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

The vulnerability exists due to Server Side Template Injection (SSTI) issue via denylist bypass. A remote administrator can send a specially crafted request and execute arbitrary code on the target system.


5) Input validation error (CVE-ID: CVE-2023-34448)

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

The vulnerability exists due to Server-side Template Injection (SSTI) issue in the Twig Default Filters. A remote administrator can pass specially crafted input to the application and execute arbitrary code on the system.


6) Incomplete List of Disallowed Inputs (CVE-ID: CVE-2023-34252)

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

The vulnerability exists due to Server-side Template Injection (SSTI) issue in filterFilter. A remote administrator can execute arbitrary code on the system.


7) Code Injection (CVE-ID: CVE-2023-34251)

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

The vulnerability exists due to Server Side Template Injection (SSTI) issue in the admin screen. A remote administrator 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.


Remediation

Install update from vendor's website.

References