Skip to content

SQL Injection vulnerability when retrieving graphs using Automation API

High
netniV published GHSA-vjph-r677-6pcc May 12, 2024

Package

Cacti (PHP)

Affected versions

<= 1.2.26

Patched versions

1.2.27

Description

Summary

A SQL injection vulnerability in automation_get_new_graphs_sql function of api_automation.php allows authenticated users to exploit these SQL injection vulnerabilities to perform privilege escalation and remote code execution.

Details

In

$sql_having = build_graph_object_sql_having($rule, get_request_var('filter'));
, The get_request_var('filter') is being concatenated into the SQL statement without any sanitization. In
'filter' => FILTER_DEFAULT,
, The filter of 'filter' is FILTER_DEFAULT, which means there is no filter for it.

PoC

Create a rule in automation_graph_rules.php like this:

image

Visit http://localhost/cacti/automation_graph_rules.php?action=edit&id=2&page=1&filter=%25%22);select%20sleep(10)--+)

image

image

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE ID

CVE-2024-31445

Weaknesses

Credits