CVE-2015-7841 in FusionServer
Summary
by MITRE
The login page of the server on Huawei FusionServer rack servers RH2288 V3 with software before V100R003C00SPC603, RH2288H V3 with software before V100R003C00SPC503, XH628 V3 with software before V100R003C00SPC602, RH1288 V3 with software before V100R003C00SPC602, RH2288A V2 with software before V100R002C00SPC701, H1288A V2 with software before V100R002C00SPC502, RH8100 V3 with software before V100R003C00SPC110, CH222 V3 with software before V100R001C00SPC161, CH220 V3 with software before V100R001C00SPC161, and CH121 V3 with software before V100R001C00SPC161 allows remote attackers to bypass access restrictions and enter commands via unspecified parameters, as demonstrated by a "user creation command."
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Analysis
by VulDB Data Team • 11/21/2019
The vulnerability identified as CVE-2015-7841 affects Huawei FusionServer rack servers across multiple model variants including RH2288 V3, RH2288H V3, XH628 V3, and several others. This security flaw exists within the server's login page implementation and represents a critical access control bypass issue that enables remote attackers to execute arbitrary commands on affected systems. The vulnerability stems from insufficient input validation and parameter sanitization within the authentication interface, allowing malicious actors to manipulate unspecified parameters during the login process. The specific demonstration of this vulnerability involves the execution of user creation commands, which indicates that attackers can potentially escalate privileges and gain unauthorized administrative access to the affected servers.
The technical nature of this vulnerability aligns with CWE-20, which describes improper input validation, and CWE-79, which covers cross-site scripting attacks, though the primary concern here is command injection and privilege escalation. The flaw allows attackers to bypass normal authentication mechanisms and execute system commands directly through the login interface, creating a pathway for unauthorized system manipulation. This type of vulnerability falls under the ATT&CK technique T1078.004, which covers legitimate credentials and T1059.001, which involves command and script injection. The affected software versions all share a common weakness in their web interface implementation where user-supplied parameters are not properly validated or sanitized before being processed by the server's authentication system.
The operational impact of CVE-2015-7841 is severe and potentially catastrophic for organizations relying on these server models. Remote attackers can exploit this vulnerability to create new user accounts with administrative privileges, potentially gaining persistent access to the systems. The ability to execute arbitrary commands through the login page means that attackers can perform a wide range of malicious activities including data exfiltration, system modification, and establishment of backdoors. Organizations using affected Huawei FusionServer hardware face significant risk of unauthorized access to their server infrastructure, potentially leading to complete system compromise. The vulnerability affects multiple server generations and software versions, suggesting a systemic issue in Huawei's web interface security implementation across their FusionServer product line.
Mitigation strategies for this vulnerability require immediate action from affected organizations. The primary recommendation is to upgrade all affected Huawei FusionServer hardware to software versions that include security patches addressing this specific flaw. Huawei should be contacted directly to obtain the appropriate firmware updates and security patches for each affected model and software version. Network segmentation and access control measures should be implemented to limit exposure of these servers to untrusted networks. Additionally, organizations should monitor their systems for any suspicious login activity or unauthorized user account creation attempts. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other systems. The vulnerability also highlights the importance of implementing proper input validation and parameter sanitization in all web applications and interfaces, particularly those handling authentication and administrative functions. Organizations should consider implementing web application firewalls and additional monitoring controls to detect and prevent exploitation attempts. This vulnerability demonstrates the critical need for robust security practices in server management interfaces and the potential consequences of inadequate input validation in authentication systems.