CVE-2025-34033: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in 5VTechnologies Blue Angel Software Suite
An OS command injection vulnerability exists in the Blue Angel Software Suite running on embedded Linux devices via the ping_addr parameter in the webctrl.cgi script. The application fails to properly sanitize input before passing it to the system-level ping command. An authenticated attacker can inject arbitrary commands by appending shell metacharacters to the ping_addr parameter in a crafted GET request to /cgi-bin/webctrl.cgi?action=pingtest_update. The command's output is reflected in the application's web interface, enabling attackers to view results directly. Default and backdoor credentials can be used to access the interface and exploit the issue. Successful exploitation results in arbitrary command execution as the root user. Exploitation evidence was observed by the Shadowserver Foundation on 2025-01-26 UTC.
AI Analysis
Technical Summary
This vulnerability involves improper neutralization of special elements in OS commands (CWE-78) within the Blue Angel Software Suite's webctrl.cgi script. Specifically, the ping_addr parameter is vulnerable to command injection because user input is passed unsanitized to the system ping command on embedded Linux devices. Authenticated attackers can exploit this by sending a crafted GET request to /cgi-bin/webctrl.cgi?action=pingtest_update, appending shell metacharacters to execute arbitrary commands as root. The command output is displayed in the web interface, facilitating confirmation of successful exploitation. Default and backdoor credentials can be used to gain the required authentication. The vulnerability was observed in January 2025 and publicly disclosed in June 2025. No patch or vendor advisory is currently available, and the product is not a cloud service, so remediation depends on vendor action or user mitigation.
Potential Impact
Successful exploitation allows an authenticated attacker to execute arbitrary commands with root privileges on affected embedded Linux devices running the Blue Angel Software Suite. This can lead to full system compromise, unauthorized access, and control over the device. The reflected command output in the web interface aids attackers in verifying exploitation. The vulnerability leverages default or backdoor credentials to gain initial access, increasing risk where such credentials are not changed. No known exploits in the wild have been reported as of the publication date.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should change default and backdoor credentials to strong, unique passwords to prevent unauthorized access. Restrict access to the web interface to trusted networks or via VPN to limit exposure. Monitor for unusual activity related to the pingtest_update functionality. Avoid exposing the affected interface to untrusted networks. Follow vendor communications closely for updates on patches or official mitigations.
CVE-2025-34033: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in 5VTechnologies Blue Angel Software Suite
Description
An OS command injection vulnerability exists in the Blue Angel Software Suite running on embedded Linux devices via the ping_addr parameter in the webctrl.cgi script. The application fails to properly sanitize input before passing it to the system-level ping command. An authenticated attacker can inject arbitrary commands by appending shell metacharacters to the ping_addr parameter in a crafted GET request to /cgi-bin/webctrl.cgi?action=pingtest_update. The command's output is reflected in the application's web interface, enabling attackers to view results directly. Default and backdoor credentials can be used to access the interface and exploit the issue. Successful exploitation results in arbitrary command execution as the root user. Exploitation evidence was observed by the Shadowserver Foundation on 2025-01-26 UTC.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves improper neutralization of special elements in OS commands (CWE-78) within the Blue Angel Software Suite's webctrl.cgi script. Specifically, the ping_addr parameter is vulnerable to command injection because user input is passed unsanitized to the system ping command on embedded Linux devices. Authenticated attackers can exploit this by sending a crafted GET request to /cgi-bin/webctrl.cgi?action=pingtest_update, appending shell metacharacters to execute arbitrary commands as root. The command output is displayed in the web interface, facilitating confirmation of successful exploitation. Default and backdoor credentials can be used to gain the required authentication. The vulnerability was observed in January 2025 and publicly disclosed in June 2025. No patch or vendor advisory is currently available, and the product is not a cloud service, so remediation depends on vendor action or user mitigation.
Potential Impact
Successful exploitation allows an authenticated attacker to execute arbitrary commands with root privileges on affected embedded Linux devices running the Blue Angel Software Suite. This can lead to full system compromise, unauthorized access, and control over the device. The reflected command output in the web interface aids attackers in verifying exploitation. The vulnerability leverages default or backdoor credentials to gain initial access, increasing risk where such credentials are not changed. No known exploits in the wild have been reported as of the publication date.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should change default and backdoor credentials to strong, unique passwords to prevent unauthorized access. Restrict access to the web interface to trusted networks or via VPN to limit exposure. Monitor for unusual activity related to the pingtest_update functionality. Avoid exposing the affected interface to untrusted networks. Follow vendor communications closely for updates on patches or official mitigations.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2025-04-15T19:15:22.546Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6859fad3dec26fc862d8c371
Added to database: 6/24/2025, 1:09:39 AM
Last enriched: 4/7/2026, 10:57:15 PM
Last updated: 5/13/2026, 3:02:35 PM
Views: 99
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