CVE-2021-42840 EXPLOIT
8.8
HIGH · CVSS 3.1 · EPSS 58.9% (pctl 99)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 8.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 58.95% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-434 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2021-10-22 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| salesagility | suitecrm |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | SuiteCRM 7.11.18 - Remote Code Execution (RCE) (Authenticated) (Metasploit) | 2021-11-17 |
References
- http://packetstormsecurity.com/files/165001/SuiteCRM-7.11.18-Remote-Code-Execution.html
- https://docs.suitecrm.com/admin/releases/7.11.x/#_7_11_19
- https://github.com/rapid7/metasploit-framework/commits/master/modules/exploits/linux/http/suitecrm_log_file_rce.rb
- 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
- https://docs.suitecrm.com/admin/releases/7.11.x/#_7_11_19
- https://github.com/rapid7/metasploit-framework/commits/master/modules/exploits/linux/http/suitecrm_log_file_rce.rb
- https://suitecrm.com/time-to-upgrade-suitecrm-7-11-19-7-10-30-lts-released/
- https://theyhack.me/SuiteCRM-RCE-2/
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