Home/CVE/SuiteCRM before 7.11.19 allows remote code execution via the system settings Log File Name setting. In certain circumsta
CVE

CVE-2021-42840

SuiteCRM before 7.11.19 allows remote code execution via the system settings Log File Name setting. In certain circumsta

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.

HIGH · CVSS 8.8 EPSS 0.49109
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  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 2% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-434Unrestricted Upload of File with Dangerous Type
▤

Affected Products & Versions

1
salesagility suitecrm< 7.11.19
⚠

Public Exploits & PoCs

4
webappsSuiteCRM 7.11.18 - Remote Code Execution (RCE) (Authenticated) (Metasploit)verified
pocpacketstormsecurity.com · SuiteCRM-7.11.18-Remote-Code-Execution.htmlpacketstormsecurity.com
pocgithub.com · suitecrm_log_file_rce.rbgithub.com
poctheyhack.me · SuiteCRM-RCE-2theyhack.me
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD22 Oct 2021 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://docs.suitecrm.com/admin/releases/7.11.x/#_7_11_19Release NotesVendor Advisory
https://suitecrm.com/time-to-upgrade-suitecrm-7-11-19-7-10-30-lts-released/Release NotesVendor Advisory
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