CVE-2022-25259 in JetBrains
Summary
by MITRE • 02/25/2022
JetBrains Hub before 2021.1.14276 was vulnerable to reflected XSS.
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Analysis
by VulDB Data Team • 03/03/2022
JetBrains Hub versions prior to 2021.1.14276 contained a reflected cross-site scripting vulnerability that could be exploited by remote attackers to execute malicious scripts in the context of a victim's browser. This vulnerability originated from insufficient input validation and output encoding within the application's web interface, specifically in how the system handled user-supplied parameters in HTTP requests. The flaw allowed an attacker to inject malicious JavaScript code through crafted URLs or form submissions that would then be reflected back to the user's browser without proper sanitization.
The technical implementation of this vulnerability involved the application's failure to properly encode or escape user input before rendering it in web responses. When a user visited a maliciously crafted URL containing XSS payload within a parameter, the application would reflect that input directly into the HTML response without appropriate security measures. This reflected nature meant that the malicious script would execute in the victim's browser context when they clicked on the forged link or navigated to the malicious page. The vulnerability was particularly dangerous because it required no authentication or privileged access to exploit, making it accessible to any remote attacker who could entice a user to click a malicious link.
From an operational impact perspective, this vulnerability posed significant risks to organizations using JetBrains Hub for project management and collaboration. Attackers could leverage this flaw to steal session cookies, perform unauthorized actions on behalf of users, redirect victims to malicious sites, or harvest sensitive information from the application. The reflected nature of the vulnerability meant that exploitation could be delivered through phishing emails, compromised websites, or social engineering campaigns. Organizations using JetBrains Hub were potentially exposed to data breaches, privilege escalation attacks, and unauthorized access to sensitive project information, development resources, and user credentials. The vulnerability was classified under CWE-79 as a classic reflected cross-site scripting flaw, which is a well-known and frequently exploited weakness in web applications.
The mitigation strategy for this vulnerability involved upgrading to JetBrains Hub version 2021.1.14276 or later, which included proper input validation and output encoding mechanisms to prevent XSS attacks. Organizations should also implement additional security measures such as content security policies, proper input sanitization, and regular security assessments of their web applications. Security teams needed to conduct thorough testing to ensure no other reflected XSS vulnerabilities existed within the application or related systems. The remediation aligned with ATT&CK technique T1566.001 for phishing and T1203 for exploitation for execution, emphasizing the importance of application security hardening and user education to prevent successful exploitation attempts.