CVE-2015-2957 in MilkyStep
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Igreks MilkyStep Light 0.94 and earlier and Professional 1.82 and earlier allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 04/06/2019
The CVE-2015-2957 vulnerability represents a critical cross-site scripting flaw affecting Igreks MilkyStep Light versions 0.94 and earlier, as well as Professional versions 1.82 and earlier. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is one of the most prevalent and dangerous web application security issues. The flaw enables remote attackers to inject malicious web scripts or HTML content into the affected applications, potentially compromising user sessions and data integrity. The unspecified vectors suggest that the vulnerability could be exploited through multiple entry points within the application's input handling mechanisms.
The technical implementation of this XSS vulnerability stems from inadequate input validation and output encoding within the MilkyStep applications. When users interact with the software, their input data is not properly sanitized before being rendered back to other users or stored in the system. This creates an environment where malicious actors can craft specially designed payloads that execute in the context of other users' browsers. The vulnerability's remote nature means that attackers do not require physical access to the system or insider knowledge to exploit it, making it particularly dangerous in web-based environments where user interaction is common.
From an operational impact perspective, this vulnerability poses significant risks to organizations using these versions of MilkyStep software. Attackers could exploit the XSS flaw to steal session cookies, redirect users to malicious websites, deface web pages, or perform actions on behalf of authenticated users. The potential for credential theft and session hijacking makes this vulnerability particularly attractive to cybercriminals. Additionally, the widespread use of web-based applications in enterprise environments means that a successful exploitation could lead to broader security breaches within the organization's network infrastructure. The vulnerability could also facilitate more sophisticated attacks such as phishing campaigns or the deployment of malware through browser-based vectors.
Mitigation strategies for CVE-2015-2957 should focus on immediate remediation through software updates and patches provided by the vendor. Organizations should implement comprehensive input validation mechanisms and ensure proper output encoding for all user-supplied data. The implementation of Content Security Policy (CSP) headers can provide additional protection against XSS attacks by restricting the sources from which scripts can be loaded. Regular security testing and code reviews should be conducted to identify and address similar vulnerabilities in other applications. Organizations should also consider implementing web application firewalls and monitoring systems to detect and prevent exploitation attempts. The vulnerability aligns with ATT&CK technique T1059.007 for Command and Scripting Interpreter: JavaScript, highlighting the need for comprehensive defensive measures against script-based attacks. Security awareness training for users can also help mitigate the impact of successful XSS exploitation attempts by teaching users to recognize and avoid suspicious web content.