Chaosblade - RCE (CVE-2023-47105)
Description
The exec.CommandContext function in Chaosblade 0.3 through 1.7.3, when server mode is used, allows OS command execution via the cmd parameter without authentication.
psychologyCrowdSec Analysis
CVE-2023-47105 is a command execution vulnerability affecting Chaosblade in server mode, allowing unauthenticated OS command execution via crafted requests.
CrowdSec has been tracking this vulnerability and its exploits since 3rd of April 2025.
CrowdSec network observations suggest that most exploitation of CVE-2023-47105 involves focused reconnaissance to identify viable targets. Attackers typically tailor their campaigns based on system exposure and configuration. It is unlikely that a given attack is accidental. CrowdSec network telemetry also shows that exploitation of CVE-2023-47105 has significantly declined over the past week. Attack volumes are well below the long-term average, suggesting attackers are rapidly losing interest. The vulnerability appears to be falling out of active use across most threat landscapes.
Exploitation attempts are characterized by requests to URLs containing /chaosblade with suspicious command parameters.
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| Event | Date |
|---|---|
| CVE Published | 2024-09-18 |
| Rule Released | 2025-04-03 |
| CrowdSec First Seen | 2025-04-07 |
Remediation & Protection
External References
- https://github.com/chaosblade-io/chaosblade/blob/0a07380c9899febb2b544132783b376b44226cca/exec/os/executor.go#L68
- https://narrow-oatmeal-0c0.notion.site/ChaosBlade-Remote-Command-Execution-CVE-2023-47105-4f5459046488436caaec2bced6ff26d7
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-47105.yaml