CVE-2015-0706 in FireSIGHT Management Center
Summary
by MITRE
Open redirect vulnerability in Cisco FireSIGHT System Software 5.3.1.1, 5.3.1.2, and 6.0.0 in FireSIGHT Management Center allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a crafted HTTP header, aka Bug IDs CSCut06060, CSCut06056, and CSCus98966.
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Analysis
by VulDB Data Team • 03/19/2019
The vulnerability identified as CVE-2015-0706 represents a critical open redirect flaw within Cisco FireSIGHT System Software versions 5.3.1.1, 5.3.1.2, and 6.0.0 operating within the FireSIGHT Management Center environment. This security weakness manifests through improper validation of HTTP headers, specifically when processing user-supplied input that could be manipulated to construct malicious redirect URLs. The flaw enables attackers to craft specially formatted HTTP requests that cause the system to redirect legitimate users to attacker-controlled web destinations, creating a significant vector for social engineering and phishing attacks.
The technical implementation of this vulnerability stems from insufficient input sanitization within the FireSIGHT Management Center's HTTP processing mechanisms. When the system encounters HTTP headers containing redirect instructions, it fails to properly validate or sanitize the redirect targets, allowing arbitrary URLs to be processed without adequate security checks. This behavior aligns with CWE-601, which categorizes open redirect vulnerabilities as weaknesses where web applications fail to validate redirect destinations, potentially allowing attackers to redirect users to malicious sites. The vulnerability specifically affects the management interface components that handle HTTP traffic, making it particularly dangerous as it operates at the administrative layer where privileged access and sensitive information are processed.
The operational impact of CVE-2015-0706 extends beyond simple redirection capabilities, creating substantial risk for organizations utilizing Cisco FireSIGHT systems. Attackers can leverage this vulnerability to conduct sophisticated phishing campaigns by redirecting users to credential harvesting pages that appear legitimate within the context of the FireSIGHT management interface. The attack vector requires minimal technical expertise, as the vulnerability can be exploited through standard web browser interactions and does not require authentication to the target system. This makes it particularly attractive for mass phishing campaigns and social engineering attacks that can compromise user credentials, steal sensitive information, or deploy additional malware through the redirected traffic.
Organizations affected by this vulnerability should implement immediate mitigations including applying the relevant Cisco security patches and updates that address the input validation flaws in the FireSIGHT Management Center software. Network administrators should also consider implementing additional security controls such as web application firewalls that can detect and block suspicious redirect patterns, and monitoring for anomalous HTTP redirect behaviors within network traffic logs. The vulnerability's classification under ATT&CK technique T1566, which covers phishing attacks, indicates that organizations should enhance their email security measures and user awareness training to counter potential exploitation attempts. Additionally, implementing proper HTTP header validation policies and conducting regular security assessments of web applications can help prevent similar vulnerabilities from being exploited in other components of the network infrastructure.