CVE-2009-5086 in IDP
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Appliance Configuration Manager (ACM) in Juniper IDP 4.1 before 4.1r3 and 4.2 before 4.2r1 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 02/10/2019
The CVE-2009-5086 vulnerability represents a critical cross-site scripting flaw within Juniper's Intrusion Detection Platform IDP 4.1 and 4.2 versions, specifically affecting deployments prior to the security patches released in 4.1r3 and 4.2r1. This vulnerability resides within the Appliance Configuration Manager component, which serves as the administrative interface for managing the intrusion detection system configuration. The flaw enables remote attackers to execute malicious web scripts or HTML code within the context of authenticated users' browsers, potentially compromising the entire administrative session and the underlying security infrastructure.
The technical nature of this vulnerability stems from insufficient input validation and output encoding mechanisms within the ACM interface. Attackers can exploit unspecified vectors to inject malicious payloads that persist in the web application's response, allowing them to execute arbitrary code in the victim's browser context. This type of vulnerability falls under CWE-79, which specifically addresses cross-site scripting flaws where untrusted data is improperly incorporated into web pages without proper sanitization or encoding. The vulnerability's classification aligns with ATT&CK technique T1566.001, which covers initial access through spearphishing attachments, as attackers could leverage this XSS flaw to deliver malicious payloads to administrative users.
The operational impact of this vulnerability extends beyond simple data theft or session hijacking. An attacker who successfully exploits this XSS vulnerability could potentially escalate privileges within the administrative interface, modify critical security policies, disable intrusion detection capabilities, or gain access to sensitive configuration data. The compromised administrative session could allow attackers to manipulate the IDP's threat detection rules, create backdoors, or redirect traffic to malicious destinations. Given that the ACM interface typically requires elevated privileges to access, successful exploitation could result in complete compromise of the intrusion detection infrastructure, undermining the organization's security posture and potentially enabling further lateral movement within the network.
Mitigation strategies for this vulnerability involve immediate deployment of the security patches released by Juniper in versions 4.1r3 and 4.2r1, which address the input validation deficiencies in the ACM component. Organizations should also implement additional defensive measures including network segmentation of administrative interfaces, strict access controls through firewalls, and monitoring for suspicious administrative activities. Regular security assessments of web applications and administrative interfaces should be conducted to identify similar input validation issues. The vulnerability demonstrates the importance of proper output encoding and input sanitization in web applications, particularly in administrative interfaces where privilege escalation risks are heightened. Security teams should also consider implementing web application firewalls and content security policies to provide additional layers of protection against similar XSS attacks in other components of the security infrastructure.