CVE-2026-34794
Command Injection in Endian Firewall Logs_IDS CGI (Authenticated
Publication date: 2026-04-02
Last updated on: 2026-04-07
Assigner: VulnCheck
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| endian | firewall_community | to 3.3.25 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| 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
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
CVE-2026-34794 allows authenticated users to execute arbitrary OS commands on affected Endian Firewall versions, which can lead to unauthorized access, data manipulation, or service disruption.
Such impacts on confidentiality, integrity, and availability of data and systems can result in non-compliance with common standards and regulations like GDPR and HIPAA, which require protection of sensitive data and system integrity.
Specifically, the high severity and potential for command injection could lead to breaches of personal or protected health information, thereby violating regulatory requirements for data security and privacy.
Can you explain this vulnerability to me?
CVE-2026-34794 is a high-severity OS command injection vulnerability in Endian Firewall versions 3.3.25 and earlier.
The flaw exists in the /cgi-bin/logs_ids.cgi script, specifically in how it handles the DATE parameter.
Authenticated users can exploit this vulnerability to execute arbitrary operating system commands because the DATE parameter is used to build a file path passed to a Perl open() function without proper sanitization.
An incomplete regular expression validation fails to neutralize special characters, enabling command injection.
How can this vulnerability impact me? :
This vulnerability allows an authenticated user to execute arbitrary OS commands on the affected system.
Because of this, an attacker could compromise the confidentiality, integrity, and availability of the system.
The CVSS score indicates a high impact with low attack complexity and no user interaction required beyond authentication.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by monitoring and analyzing requests to the /cgi-bin/logs_ids.cgi endpoint, specifically looking for suspicious or malformed values in the DATE parameter that may include special characters or command injection patterns.
Since the vulnerability requires authentication, detection can involve checking authenticated user activity for unusual DATE parameter inputs.
A practical approach is to review web server logs for requests to /cgi-bin/logs_ids.cgi with suspicious DATE parameter values.
- Use grep or similar tools to search logs for the DATE parameter usage, for example: grep "/cgi-bin/logs_ids.cgi" /var/log/httpd/access_log | grep "DATE="
- Inspect the DATE parameter values for special characters such as semicolons (;), backticks (`), or other shell metacharacters that could indicate command injection attempts.
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include restricting or disabling access to the /cgi-bin/logs_ids.cgi script for authenticated users until a patch or fix is applied.
Ensure that only trusted users have authentication credentials, as the vulnerability requires authenticated access.
Monitor and filter input to the DATE parameter to block special characters that could be used for command injection.
Apply any available updates or patches from Endian Firewall that address this vulnerability.