CVE-2017-16760 in BuildMaster
Summary
by MITRE
Inedo BuildMaster before 5.8.2 has XSS.
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Analysis
by VulDB Data Team • 12/05/2019
The vulnerability identified as CVE-2017-16760 represents a cross-site scripting flaw discovered in Inedo BuildMaster versions prior to 5.8.2. This web application security weakness allows attackers to inject malicious scripts into web pages viewed by other users, potentially leading to unauthorized access, data theft, or system compromise. The vulnerability specifically affects the BuildMaster continuous integration and deployment platform that organizations use for automating software release processes and managing application deployments across various environments.
The technical implementation of this XSS vulnerability stems from insufficient input validation and output encoding within the BuildMaster web interface. When users submit data through web forms or URL parameters, the application fails to properly sanitize or escape special characters that could be interpreted as HTML or JavaScript code. This allows malicious actors to craft payloads that execute within the context of other users' browsers, leveraging the trust relationship between the web application and its users. The flaw typically manifests when user-supplied content is rendered back to the browser without proper security measures to prevent script execution.
The operational impact of this vulnerability extends beyond simple script injection, as it can enable attackers to perform session hijacking, steal sensitive credentials, or manipulate the application's functionality. An attacker could potentially redirect users to malicious websites, install malware through browser-based attacks, or extract confidential information from the BuildMaster environment. Given that BuildMaster is used for deployment automation and release management, successful exploitation could compromise the integrity of software delivery pipelines and potentially provide access to production environments. The vulnerability's severity is amplified by the fact that it affects the core application interface where users frequently interact with deployment configurations and system settings.
Organizations should immediately upgrade to BuildMaster version 5.8.2 or later to remediate this vulnerability, as the vendor has released patches specifically addressing the XSS flaw. Additionally, implementing proper input validation and output encoding mechanisms throughout the application codebase can provide defense-in-depth measures. Security teams should conduct thorough penetration testing to identify any other potential injection points within the application and consider implementing content security policies to limit script execution. The vulnerability aligns with CWE-79 which catalogs cross-site scripting weaknesses, and follows ATT&CK technique T1211 for exploitation of web application vulnerabilities. Organizations should also review their web application firewall rules to detect and block suspicious input patterns that could indicate attempted exploitation of this or similar vulnerabilities.