CVE-2022-33935 in Data Protection Advisor
Summary
by MITRE • 08/31/2022
Dell EMC Data Protection Advisor versions 19.6 and earlier, contains a Stored Cross Site Scripting, an attacker could potentially exploit this vulnerability, leading to the storage of malicious HTML or JavaScript codes in a trusted application data store. When a victim user accesses the data store through their browsers, the malicious code gets executed by the web browser in the context of the vulnerable web application. Exploitation may lead to information disclosure, session theft, or client-side request forgery.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 10/10/2022
The vulnerability identified as CVE-2022-33935 affects Dell EMC Data Protection Advisor version 19.6 and earlier, representing a critical stored cross site scripting flaw that poses significant risks to enterprise data protection environments. This vulnerability resides within the web application's input validation mechanisms, where user-supplied data is not properly sanitized before being stored in the application's data repository. The flaw allows attackers to inject malicious HTML or JavaScript code through legitimate application interfaces that subsequently gets executed when authorized users access the affected data store. The vulnerability specifically impacts the application's handling of user-controllable input fields that are processed and stored without adequate security controls, creating an environment where persistent malicious code can be embedded within the application's trusted data infrastructure.
The technical execution of this vulnerability follows a classic stored XSS attack pattern where the malicious payload is first submitted through legitimate application interfaces such as configuration forms, user input fields, or data import mechanisms. When administrators or authorized users subsequently access the stored data through the web interface, the malicious code executes within their browser context, leveraging the victim's authenticated session and privileges. The attack vector operates through the application's failure to implement proper input sanitization, output encoding, or Content Security Policy mechanisms that would normally prevent malicious code execution. This vulnerability directly aligns with CWE-79 which defines cross site scripting flaws as weaknesses that occur when an application incorporates untrusted data into web pages without proper validation or escaping, and it maps to ATT&CK technique T1531 which covers "Modify System Image" through the exploitation of web application vulnerabilities to gain unauthorized access to system resources.
The operational impact of CVE-2022-33935 extends beyond simple script execution, as it provides attackers with the capability to establish persistent access to enterprise data protection environments. Successful exploitation can lead to comprehensive information disclosure including backup configurations, system credentials, and sensitive data protection policies that govern the organization's data security posture. The vulnerability enables session theft through cookie manipulation, allowing attackers to impersonate legitimate users and potentially gain access to additional system resources beyond the initial breach. Client-side request forgery capabilities further amplify the threat, enabling attackers to perform unauthorized operations on behalf of the victim user, potentially including data exfiltration, system configuration changes, or manipulation of backup schedules and policies. Organizations relying on Dell EMC Data Protection Advisor for critical data protection functions face significant risk of unauthorized access to their backup infrastructure and sensitive data protection configurations.
Mitigation strategies for CVE-2022-33935 should prioritize immediate patching of affected Dell EMC Data Protection Advisor installations to version 19.7 or later, which contains the necessary security fixes. Organizations should implement additional defensive measures including enhanced input validation controls, regular security scanning of application interfaces, and implementation of Content Security Policies to prevent execution of unauthorized scripts. Network segmentation and privileged access controls should be enforced to limit exposure of the Data Protection Advisor application to unauthorized users. Security monitoring should be enhanced to detect anomalous user behavior patterns and unauthorized data access attempts. The vulnerability highlights the importance of maintaining current security patches and implementing comprehensive application security testing procedures, including automated scanning and manual penetration testing, to identify similar weaknesses in enterprise applications. Organizations should also consider implementing web application firewalls and additional monitoring controls specifically designed to detect and prevent cross site scripting attacks in their data protection environments.