Emerging Threatmediumtest
Potential CVE-2023-27997 Exploitation Indicators
Detects indicators of potential exploitation of CVE-2023-27997 in Frotigate weblogs. To avoid false positives it is best to look for successive requests to the endpoints mentioned as well as weird values of the "enc" parameter
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Launch
Sergio Palacios Dominguez, Nasreddine Bencherchali (Nextron Systems)Created Fri Jul 2831e4e649-7394-4fd2-9ae7-dbc61eebb5502023
Emerging Threat
Active Threat
Developed to detect an active or emerging threat. Prioritize investigation of any alerts and correlate with threat intelligence.
Log Source
Web Server Log
CategoryWeb Server Log← raw: webserver
HTTP access logs from web servers capturing request paths, methods, and status codes.
Detection Logic
Detection Logic2 selectors
detection:
selection_uri:
cs-method:
- 'GET'
- 'POST'
cs-uri-query|contains:
- '/remote/hostcheck_validate'
- '/remote/logincheck'
selection_keywords:
- 'enc='
condition: all of selection_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Tactics
Other
cve.2023-27997detection.emerging-threats
Rule Metadata
Rule ID
31e4e649-7394-4fd2-9ae7-dbc61eebb550
Status
test
Level
medium
Type
Emerging Threat
Created
Fri Jul 28
Path
rules-emerging-threats/2023/Exploits/CVE-2023-27997/web_cve_2023_27997_pre_authentication_rce.yml
Raw Tags
attack.initial-accessattack.t1190cve.2023-27997detection.emerging-threats