CVE-2015-8257 in Network Camera
Summary
by MITRE
The devtools.sh script in AXIS network cameras allows remote authenticated users to execute arbitrary commands via shell metacharacters in the app parameter to (1) app_license.shtml, (2) app_license_custom.shtml, (3) app_index.shtml, or (4) app_params.shtml.
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Analysis
by VulDB Data Team • 11/29/2024
The vulnerability identified as CVE-2015-8257 represents a critical command injection flaw within the devtools.sh script of AXIS network cameras, which are widely deployed for video surveillance and security monitoring applications. This issue affects multiple web interface endpoints including app_license.shtml, app_license_custom.shtml, app_index.shtml, and app_params.shtml, all of which process user-supplied input through the app parameter without adequate sanitization. The vulnerability resides in the improper handling of shell metacharacters, creating a pathway for remote authenticated attackers to execute arbitrary commands on the affected devices. The flaw is particularly concerning given the widespread deployment of AXIS cameras in critical infrastructure environments where security is paramount.
The technical exploitation of this vulnerability occurs when an authenticated user submits malicious input containing shell metacharacters to any of the affected web endpoints. The devtools.sh script fails to properly validate or escape the app parameter input before incorporating it into shell commands, thereby enabling attackers to inject additional shell commands that will be executed with the privileges of the web server process. This command injection vulnerability aligns with CWE-77, which specifically addresses command injection flaws where user-supplied data is directly incorporated into shell commands without proper sanitization. The attack vector requires authentication, which slightly reduces the attack surface compared to unauthenticated vulnerabilities, but still represents a significant risk in environments where camera access credentials may be compromised.
The operational impact of CVE-2015-8257 extends beyond simple unauthorized command execution, as it can enable attackers to gain persistent access to surveillance systems, modify configuration settings, access stored video footage, or even use the compromised cameras as entry points for broader network infiltration. Network security teams deploying AXIS cameras in sensitive environments face particular risks since these devices often serve as critical components of security infrastructure and may contain sensitive operational data. The vulnerability can be exploited to escalate privileges, install backdoors, or redirect network traffic, making it a serious concern for organizations relying on these devices for perimeter security and monitoring operations. According to ATT&CK framework, this vulnerability maps to T1059.001 (Command and Scripting Interpreter: Shell Script) and T1068 (Exploitation for Privilege Escalation) techniques.
Mitigation strategies for CVE-2015-8257 should focus on immediate patching of affected AXIS camera firmware versions, as the vendor has released updates addressing this specific vulnerability. Organizations should implement network segmentation to limit access to camera management interfaces and enforce strict authentication controls with multi-factor authentication where possible. Network monitoring should be enhanced to detect unusual command execution patterns or unexpected network connections originating from camera devices. Regular security audits of network camera configurations should be conducted to identify and remediate similar input validation weaknesses. Additionally, organizations should consider implementing network access controls that restrict direct access to camera management interfaces from external networks and ensure that only authorized personnel have access to administrative functions. The vulnerability highlights the importance of proper input validation and output encoding practices in web applications and underscores the need for secure coding standards in embedded systems and network devices.