CVE-2019-17504 in Dynamic Resource Scheduling
Summary
by MITRE
An issue was discovered in Kirona Dynamic Resource Scheduling (DRS) 5.5.3.5. A reflected Cross-site scripting (XSS) vulnerability allows remote attackers to inject arbitrary web script via the /osm/report/ password parameter.
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Analysis
by VulDB Data Team • 08/27/2025
The vulnerability identified as CVE-2019-17504 affects Kirona Dynamic Resource Scheduling (DRS) version 5.5.3.5, representing a critical security flaw that exposes the system to remote code execution through malicious web script injection. This issue manifests as a reflected cross-site scripting vulnerability within the web application's handling of user input, specifically targeting the /osm/report/ endpoint where the password parameter fails to properly sanitize incoming data. The vulnerability exists due to inadequate input validation and output encoding mechanisms that allow malicious actors to inject crafted script payloads into the application's response, which then executes in the context of other users' browsers. The reflected nature of this vulnerability means that the malicious script is reflected off the web server rather than being stored, making it particularly dangerous as attackers can craft malicious URLs that, when clicked by victims, execute the injected code in their browsers.
The technical implementation of this vulnerability stems from the application's failure to properly encode or validate user-supplied input before incorporating it into web page responses. When a user submits data through the password parameter in the /osm/report/ path, the system does not adequately sanitize this input, allowing special characters and script tags to pass through unfiltered. This weakness creates an environment where attackers can construct malicious URLs containing encoded script payloads that, when executed, can perform actions such as stealing session cookies, redirecting users to malicious sites, or performing unauthorized actions on behalf of authenticated users. The vulnerability directly maps to CWE-79 which defines Cross-site Scripting as a weakness where applications fail to properly validate or encode user-controllable data before including it in output that is sent to web browsers. This classification places the vulnerability within the broader category of web application security flaws that compromise user trust and system integrity.
The operational impact of this vulnerability extends beyond simple script execution, potentially enabling attackers to establish persistent access to the affected system through session hijacking or credential theft. An attacker who successfully exploits this vulnerability can manipulate the application's behavior to redirect users to phishing sites, steal sensitive information, or perform unauthorized administrative actions within the DRS environment. The reflected nature of the attack means that the vulnerability can be exploited through social engineering tactics, where attackers send malicious links via email or other communication channels to unsuspecting users. This type of attack is particularly concerning for enterprise environments where DRS systems manage critical resource scheduling and potentially sensitive operational data. The vulnerability also aligns with ATT&CK technique T1566 which describes social engineering tactics used to gain initial access to systems, specifically through phishing or malicious links that exploit web application vulnerabilities.
Mitigation strategies for CVE-2019-17504 should focus on implementing comprehensive input validation and output encoding mechanisms across all user-facing parameters within the application. The most effective immediate solution involves sanitizing all input data through proper encoding before rendering it in web responses, particularly targeting the password parameter and other user-controllable inputs within the /osm/report/ endpoint. Organizations should implement Content Security Policy headers to limit script execution capabilities and prevent unauthorized code injection. Additionally, the affected Kirona DRS version 5.5.3.5 should be updated to the latest available patch or version that addresses this specific vulnerability. Regular security assessments and web application firewalls should be deployed to monitor for similar vulnerabilities, while user education regarding suspicious links and phishing attempts should be reinforced. The implementation of proper input validation frameworks and regular security code reviews will help prevent similar issues in future development cycles, ensuring that all user-supplied data is properly validated and encoded before being processed or displayed within the application interface.