CVE-2022-23100 in OX App Suite
Summary
by MITRE • 07/27/2022
OX App Suite through 7.10.6 allows OS Command Injection via Documentconverter (e.g., through an email attachment).
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 07/27/2022
The vulnerability identified as CVE-2022-23100 represents a critical operating system command injection flaw within OX App Suite version 7.10.6 and earlier. This vulnerability specifically affects the documentconverter component which processes email attachments and other document types within the application's email handling system. The flaw stems from insufficient input validation and sanitization mechanisms that fail to properly escape or filter user-supplied data before executing system commands. When a malicious user uploads or attaches a specially crafted document, the application's documentconverter module processes this input without adequate security controls, potentially allowing arbitrary command execution on the underlying operating system. This type of vulnerability falls under the CWE-78 category of OS Command Injection, which is classified as a high-risk vulnerability due to its potential for complete system compromise. The attack vector typically involves sending malicious email attachments that, when processed by the documentconverter, trigger system commands that can execute with the privileges of the application process.
The technical exploitation of this vulnerability occurs when the application's documentconverter component receives untrusted input through email attachments and subsequently incorporates this data into system command execution without proper sanitization. This flaw enables attackers to inject operating system commands directly into the application's processing pipeline, potentially allowing them to execute arbitrary code on the server. The impact extends beyond simple command execution to include potential privilege escalation, data exfiltration, and system persistence mechanisms. Attackers could leverage this vulnerability to gain unauthorized access to sensitive data, install backdoors, or launch further attacks against network infrastructure. The vulnerability's severity is amplified by the fact that it operates within the email processing workflow, making it accessible through routine user interactions and potentially automated attack vectors.
From an operational perspective, this vulnerability poses significant risks to organizations relying on OX App Suite for email and collaboration services. The attack surface is particularly concerning as email systems typically serve as primary entry points for cyber attacks and often contain sensitive organizational data. The vulnerability can lead to complete system compromise, data breaches, and potential lateral movement within networks where the application is deployed. Organizations may face regulatory compliance violations and reputational damage if successful attacks occur. The attack chain typically involves crafting malicious email attachments that exploit the documentconverter processing functionality, followed by command execution that can be used to establish persistent access or escalate privileges. This vulnerability aligns with several ATT&CK tactics including initial access through email-based attacks and privilege escalation through command execution.
Organizations should implement immediate mitigations including updating to OX App Suite version 7.10.7 or later which contains patches for this vulnerability. Network segmentation and firewall rules should be implemented to restrict access to the documentconverter functionality where possible. Input validation and sanitization controls should be enhanced to prevent command injection attempts, including implementing proper escaping mechanisms for all user-supplied data. Security monitoring should be enhanced to detect suspicious command execution patterns and unusual email attachment processing activities. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in the application stack. System administrators should implement principle of least privilege for the application processes and ensure that the documentconverter component operates with minimal required permissions. Additionally, email content filtering and sandboxing mechanisms should be deployed to analyze suspicious attachments before they reach the documentconverter processing pipeline, providing an additional layer of defense against exploitation attempts.