CVE-2022-22997 in My Cloud
Summary
by MITRE • 07/13/2022
Addressed a remote code execution vulnerability by resolving a command injection vulnerability and closing an AWS S3 bucket that potentially allowed an attacker to execute unsigned code on My Cloud Home devices.
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Analysis
by VulDB Data Team • 07/23/2022
The CVE-2022-22997 vulnerability represents a critical remote code execution flaw affecting My Cloud Home devices that leveraged command injection techniques to compromise system integrity. This vulnerability specifically targeted the device's handling of user-supplied input within network services, creating an attack surface where malicious actors could inject arbitrary commands that would be executed with elevated privileges. The flaw existed within the device's web interface and network protocols that failed to properly sanitize or validate user input before processing, allowing attackers to manipulate system commands through crafted requests. The vulnerability was particularly concerning as it enabled attackers to execute unsigned code on affected devices without requiring authentication, making it a significant threat to home network security.
The technical implementation of this vulnerability aligns with common command injection patterns documented in CWE-77 and CWE-88, where insufficient input validation allows attackers to inject operating system commands into the target system. The attack vector involved sending specially crafted payloads through HTTP requests to the device's web management interface, which would then be processed without adequate sanitization. This particular flaw in My Cloud Home devices demonstrated poor input validation practices and inadequate security controls in network services, creating a pathway for attackers to escalate privileges and execute arbitrary code. The vulnerability's exploitation required minimal prerequisites and could be accomplished through standard web-based attack techniques, making it particularly dangerous in home network environments where devices often lack proper security hardening.
The operational impact of CVE-2022-22997 extended beyond simple remote code execution to potentially compromise entire home networks, as attackers could use the compromised devices as footholds for further network exploration and lateral movement. The vulnerability's resolution required addressing the underlying command injection flaw and securing access to AWS S3 buckets that were improperly configured to allow unauthorized access. This dual approach to remediation addressed both the immediate code execution vulnerability and the potential for attackers to access additional resources through misconfigured cloud storage. The vulnerability affected devices running vulnerable firmware versions where the command injection occurred during file upload operations and network configuration processes, particularly impacting devices that relied on cloud services for synchronization and backup operations.
Security mitigations for this vulnerability included firmware updates that implemented proper input validation and command sanitization techniques, along with configuration changes to AWS S3 buckets that had been exposed to unauthorized access. The remediation process required device owners to update their firmware to versions that addressed the specific command injection patterns that allowed code execution. Organizations and individuals should have implemented network segmentation to limit access to potentially compromised devices and monitored for suspicious network activity that might indicate exploitation attempts. The vulnerability's resolution also required implementing proper access controls for cloud resources and ensuring that AWS S3 buckets were configured with appropriate security settings to prevent unauthorized code execution through storage access. This vulnerability highlighted the importance of securing both local device interfaces and cloud infrastructure components in IoT deployments, as demonstrated by the ATT&CK framework's relevance in understanding how attackers might leverage multiple attack vectors to achieve persistent access to target systems.