Emerging Threathightest
Potential Information Disclosure CVE-2023-43261 Exploitation - Proxy
Detects exploitation attempts of CVE-2023-43261 and information disclosure in Milesight UR5X, UR32L, UR32, UR35, UR41 before v35.3.0.7 that allows attackers to access sensitive router components in proxy logs.
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Launch
Nasreddine Bencherchali (Nextron Systems), Thurein OoCreated Fri Oct 20Updated Mon Oct 30f48f5368-355c-4a1b-8bf5-11c13d589eaa2023
Emerging Threat
Active Threat
Developed to detect an active or emerging threat. Prioritize investigation of any alerts and correlate with threat intelligence.
Log Source
Proxy Log
CategoryProxy Log← raw: proxy
Detection Logic
Detection Logic1 selector
detection:
selection:
cs-method: 'GET'
# Note: In theory the path can also be for other files. But since the logs can contains password and interesting information. Its most likely going to be targeted during a real attack
c-uri|contains: '/lang/log/httpd.log' # Als covered .old
sc-status: 200
condition: selectionFalse Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Tactics
Other
cve.2023-43621detection.emerging-threats
Rule Metadata
Rule ID
f48f5368-355c-4a1b-8bf5-11c13d589eaa
Status
test
Level
high
Type
Emerging Threat
Created
Fri Oct 20
Modified
Mon Oct 30
Path
rules-emerging-threats/2023/Exploits/CVE-2023-43261/proxy_exploit_cve_2023_43261_milesight_information_disclosure.yml
Raw Tags
attack.initial-accessattack.t1190cve.2023-43621detection.emerging-threats