CVE-2022-28096 in Skycaiji
Summary
by MITRE • 05/04/2022
Skycaiji v2.4 was discovered to contain a remote code execution (RCE) vulnerability via /SkycaijiApp/admin/controller/Develop.php.
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Analysis
by VulDB Data Team • 05/07/2022
The vulnerability identified as CVE-2022-28096 affects Skycaiji v2.4, a web application framework that appears to be used for automated data collection and web scraping operations. This particular vulnerability manifests as a remote code execution flaw that exists within the application's administrative interface, specifically in the Develop.php controller file located at /SkycaijiApp/admin/controller/Develop.php. The flaw represents a critical security weakness that allows attackers to execute arbitrary code on the target system remotely, without requiring authentication or physical access to the server infrastructure.
The technical nature of this vulnerability stems from insufficient input validation and sanitization mechanisms within the Develop.php controller. When the application processes requests through this endpoint, it fails to properly validate or sanitize user-supplied parameters that are passed to the system. This lack of proper input filtering creates an avenue for malicious actors to inject and execute arbitrary commands on the underlying operating system. The vulnerability falls under the CWE-94 category of "Improper Control of Generation of Code" and represents a classic example of command injection or code injection attacks that can be exploited through web interfaces. Attackers can leverage this weakness to upload malicious files, execute system commands, gain persistent access, or escalate privileges within the compromised environment.
The operational impact of this vulnerability is severe and multifaceted, particularly for organizations relying on Skycaiji for automated data collection processes. Successful exploitation of CVE-2022-28096 allows threat actors to gain complete control over the affected system, potentially leading to data breaches, system compromise, and unauthorized access to sensitive information. The remote nature of the vulnerability means that attackers can exploit it from anywhere on the internet, making it particularly dangerous for applications that are exposed to public networks. Organizations using this software may face significant risks including unauthorized data processing, potential use of compromised systems for botnet activities, and complete system takeover. The vulnerability also aligns with ATT&CK technique T1059.001 for Command and Scripting Interpreter, where adversaries use legitimate system commands to execute malicious code. Additionally, this vulnerability could facilitate lateral movement within networks if the compromised system has access to other internal resources.
Mitigation strategies for CVE-2022-28096 should prioritize immediate patching of the affected Skycaiji v2.4 installation, as this represents the most effective solution to address the root cause of the vulnerability. Organizations should also implement network-level protections including firewall rules that restrict access to the administrative endpoints, particularly the Develop.php controller. Additional security measures include implementing proper input validation at all entry points, employing web application firewalls to detect and block malicious payloads, and conducting thorough code reviews to identify similar vulnerabilities in other components. Security monitoring should be enhanced to detect unusual command execution patterns or unauthorized access attempts to administrative interfaces. Organizations should also consider implementing principle of least privilege access controls, ensuring that only authorized personnel have access to administrative functions, and regularly updating and patching all software components to prevent exploitation of known vulnerabilities. The remediation process should include comprehensive vulnerability scanning and penetration testing to ensure that no other similar weaknesses exist within the application or its supporting infrastructure.