CVE-2022-47373 in Pandora FMS
Summary
by MITRE • 02/15/2023
Reflected Cross Site Scripting in Search Functionality of Module Library in Pandora FMS Console v766 and lower. This vulnerability arises on the forget password functionality in which parameter username does not proper input validation/sanitization thus results in executing malicious JavaScript payload.
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Analysis
by VulDB Data Team • 03/16/2023
The vulnerability identified as CVE-2022-47373 represents a reflected cross site scripting flaw within the Pandora FMS Console version 766 and earlier releases. This security weakness specifically manifests within the module library's search functionality, creating an attack vector that can be exploited by malicious actors to inject and execute arbitrary JavaScript code in the context of a victim's browser session. The vulnerability stems from inadequate input validation mechanisms implemented within the password recovery process, particularly concerning the username parameter handling.
The technical implementation of this flaw occurs when the system fails to properly sanitize user-supplied input during the password recovery workflow. When users attempt to reset their passwords through the forget password functionality, the system accepts the username parameter without sufficient validation or sanitization measures. This absence of proper input filtering allows attackers to craft malicious payloads that, when submitted through the username field, get reflected back to the user's browser and subsequently executed. The reflected nature of this vulnerability means that the malicious script is not stored on the server but rather injected through the web application's response to a crafted request.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform various malicious activities within the victim's browser context. An attacker could potentially steal session cookies, redirect users to malicious websites, deface the console interface, or even execute more sophisticated attacks such as credential theft or privilege escalation within the Pandora FMS environment. Given that this affects the core password recovery functionality, attackers could specifically target user accounts and potentially compromise the entire system if successful. The vulnerability affects all versions up to and including 766, making it a significant concern for organizations that have not yet upgraded their installations.
Mitigation strategies for CVE-2022-47373 should prioritize immediate remediation through the upgrade to Pandora FMS version 767 or later, which includes the necessary patches addressing this reflected XSS vulnerability. Additionally, implementing proper input validation and output encoding mechanisms within the password recovery module is essential. Organizations should enforce strict sanitization of all user inputs, particularly those used in dynamic content generation. The implementation of content security policies and proper HTTP headers can provide additional defense layers against XSS attacks. This vulnerability aligns with CWE-79, which specifically addresses cross site scripting flaws, and corresponds to techniques described in the ATT&CK framework under T1059.007 for scripting and T1566 for phishing attacks that leverage web application vulnerabilities. Security teams should also consider implementing web application firewalls and monitoring for suspicious patterns in password recovery requests to detect potential exploitation attempts.