CVE-2025-34055
BaseFortify
Publication date: 2025-07-01
Last updated on: 2025-07-03
Assigner: VulnCheck
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-20 | The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. |
| CWE-78 | The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is an OS command injection flaw in AVTECH DVR, NVR, and IP camera devices, specifically in the adcommand.cgi endpoint that interfaces with the ActionD daemon. Authenticated users can invoke the DoShellCmd operation and pass arbitrary input via the strCmd parameter. Because this input is executed directly by the system shell without any sanitization, attackers can execute arbitrary commands with root privileges on the device. [1, 2, 3]
How can this vulnerability impact me? :
This vulnerability allows attackers who have authenticated access to execute arbitrary system commands as the root user on affected AVTECH devices. This can lead to full device compromise, unauthorized access to sensitive information, modification of device settings, and potentially using the device as a foothold to attack other systems on the network. Given the widespread deployment and internet exposure of these devices, exploitation poses a significant security risk. [1, 2, 3]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by checking for the presence of AVTECH DVR, NVR, or IP camera devices exposing the vulnerable adcommand.cgi endpoint. Network scanning tools like Shodan can identify exposed devices. On the device, authenticated access to the adcommand.cgi endpoint with the DoShellCmd operation can be tested to see if arbitrary commands can be executed. For example, an authenticated POST request to adcommand.cgi with the parameter strCmd set to a harmless command like 'id' or 'whoami' can confirm vulnerability. Additionally, checking for the presence of vulnerable CGI scripts such as adcommand.cgi, CloudSetup.cgi, PwdGrp.cgi, and Search.cgi can help identify affected devices. Since the devices store passwords in plaintext and have authentication bypasses, attempts to retrieve or access these scripts without proper authentication can also indicate vulnerability. Specific commands or scripts for detection are not provided in the resources, but using curl or similar tools to send authenticated POST requests to adcommand.cgi with controlled commands can be used for testing. [1, 2, 3]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include changing default administrative passwords on all AVTECH devices to strong, unique passwords to prevent unauthorized access. Avoid exposing device web interfaces directly to the internet by placing devices behind firewalls or restricting access via network segmentation. Since no official patches or fixes are currently available from AVTECH for these vulnerabilities, these steps are critical to reduce risk. Additionally, monitor device access logs for suspicious activity and consider disabling or restricting access to vulnerable CGI endpoints if possible. Updating firmware from AVTECH's official site may help for related vulnerabilities, but for this specific CVE, no official patch is available yet. [1, 2, 3]