CVE-2022-4847 in memos
Summary
by MITRE • 12/29/2022
Incorrectly Specified Destination in a Communication Channel in GitHub repository usememos/memos prior to 0.9.1.
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Analysis
by VulDB Data Team • 01/26/2023
The vulnerability identified as CVE-2022-4847 represents a critical communication channel misconfiguration issue within the memos application ecosystem. This flaw exists in the GitHub repository usememos/memos prior to version 0.9.1, where the application fails to properly validate or specify destination endpoints during communication operations. The root cause stems from improper handling of network communication paths, allowing potential attackers to manipulate or redirect data flow through unspecified or incorrectly configured channels. This misconfiguration creates an avenue for malicious actors to intercept, modify, or redirect communications between the application components and external services.
The technical implementation of this vulnerability manifests in the application's network communication stack where destination addresses are either hardcoded, improperly parsed, or dynamically constructed without adequate validation mechanisms. When memos processes network requests or establishes connections to external services, the system fails to enforce proper destination validation, potentially allowing arbitrary endpoint specification. This flaw falls under the category of improper input validation and communication channel specification as outlined in CWE-20 and CWE-1098. The vulnerability enables attackers to exploit the communication infrastructure by manipulating the intended destination of network packets or requests, potentially leading to man-in-the-middle attacks or data exfiltration scenarios.
From an operational perspective, this vulnerability poses significant risks to organizations relying on memos for document management and collaboration services. The impact extends beyond simple data interception to potential service disruption and unauthorized access to sensitive information stored within the application. Attackers could leverage this flaw to redirect communications to malicious endpoints, enabling them to capture credentials, intercept sensitive documents, or perform unauthorized operations against connected systems. The vulnerability particularly affects environments where memos integrates with external databases, authentication services, or cloud storage solutions, as these communication channels become susceptible to manipulation. The risk is amplified when the application operates in multi-tenant environments or handles confidential business data, as unauthorized access could lead to substantial data breaches and compliance violations.
Organizations should implement immediate mitigations including updating to memos version 0.9.1 or later, which contains the necessary fixes for destination validation. Network segmentation and monitoring should be enhanced to detect anomalous communication patterns that might indicate exploitation attempts. Implementing strict network policies and validating all communication endpoints through secure configuration management practices will significantly reduce the attack surface. Security teams should also conduct comprehensive network traffic analysis to identify any potential exploitation attempts and establish proper logging mechanisms for communication channel activities. The remediation process should include thorough testing of all network communication paths and validation of destination endpoints to ensure proper implementation of secure communication protocols. Additionally, organizations should consider implementing network intrusion detection systems and monitoring for unusual communication patterns that could indicate exploitation of this vulnerability. This vulnerability aligns with ATT&CK techniques related to command and control communications and network infiltration, emphasizing the need for robust network security controls and continuous monitoring of application communication behaviors.