SB2018041819 - Multiple vulnerabilities in cmsmadesimple CMS Made Simple



SB2018041819 - Multiple vulnerabilities in cmsmadesimple CMS Made Simple

Published: April 18, 2018 Updated: August 8, 2020

Security Bulletin ID SB2018041819
CSH Severity
High
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 67% Medium 33%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Incorrect permission assignment for critical resource (CVE-ID: CVE-2018-10519)

CWE-ID: CWE-732 - Incorrect Permission Assignment for Critical Resource

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote authenticated user to execute arbitrary code.

CMS Made Simple (CMSMS) 2.2.7 contains a privilege escalation vulnerability from ordinary user to admin user by arranging for the eff_uid value within $_COOKIE[$this->_loginkey] to equal 1, because files in the tmp/ directory are accessible through HTTP requests. NOTE: this vulnerability exists because of an incorrect fix for CVE-2018-10084.


2) Path traversal (CVE-ID: CVE-2018-9921)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

In CMS Made Simple 2.2.7, a Directory Traversal issue makes it possible to determine the existence of files and directories outside the web-site installation directory, and determine whether a file has contents matching a specified checksum. The attack uses an admin/checksum.php?__c= request.


3) Incorrect permission assignment for critical resource (CVE-ID: CVE-2018-1000158)

CWE-ID: CWE-732 - Incorrect Permission Assignment for Critical Resource

CVSSv4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

cmsmadesimple version 2.2.7 contains a Incorrect Access Control vulnerability in the function of send_recovery_email in the line "$url = $config['admin_url'] . '/login.php?recoverme=' . $code;" that can result in Administrator Password Reset Poisoning, specifically a reset URL pointing at an attacker controlled server can be created by using a host header attack.


Remediation

Install update from vendor's website.