CVE-2021-42840

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 v3.1

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

CVSS v2.0

9.0 HIGHAV:N/AC:L/Au:S/C:C/I:C/A:C

EPSS

58.95% chance of exploitation in the next 30 days, 99th percentile

Published

2021-10-22

Updated

2024-08-04

Proof-of-concept exploits (1)

• http://packetstormsecurity.com/files/165001/SuiteCRM-7.11.18-Remote-Code-Execution.html

Metasploit modules (1)

• rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/suitecrm_log_file_rce…

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/50531

References

• CVE Record
• NVD entry

Related

• CVE-2021-42835
• CVE-2021-42847
• CVE-2021-42794
• CVE-2021-42859
• CVE-2021-4279
• CVE-2021-42860