CVE-2021-42840

Public Exploit

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.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 47.77% Top 5%
Vendor Advisory suitecrm.com Vendor Advisory suitecrm.com
Affected: n/a n/a
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2021-42840?
CVE-2021-42840 has been scored as a high severity vulnerability.
How to fix CVE-2021-42840?
To fix CVE-2021-42840, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-42840 being actively exploited in the wild?
It is possible that CVE-2021-42840 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~48% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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