CVE-2021-42840 Information

Description

SuiteCRM before 7.11.19 allows remote code execution via the system settings Log File Name setting. In certain circumstances involving admin account takeover logger_file_name can refer to an attacker-controlled PHP file under the web root because only the all-lowercase PHP file extensions were blocked. NOTE: this issue exists because of an incomplete fix for CVE-2020-28328.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/rapid7/metasploit-framework/commits/master/modules/exploits/linux/http/suitecrm_log_file_rce.rb https://docs.suitecrm.com/admin/releases/7.11.x/#_7_11_19 https://suitecrm.com/time-to-upgrade-suitecrm-7-11-19-7-10-30-lts-released/ https://theyhack.me/SuiteCRM-RCE-2/ http://packetstormsecurity.com/files/165001/SuiteCRM-7.11.18-Remote-Code-Execution.html

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8