CVE-2007-5058 in Spam Firewall
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the Web administration interface in Barracuda Spam Firewall before firmware 3.5.10.016 allows remote attackers to inject arbitrary web script or HTML via the username field in a login attempt, which is not properly handled when the Monitor Web Syslog screen is open.
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Analysis
by VulDB Data Team • 03/23/2019
The vulnerability identified as CVE-2007-5058 represents a critical cross-site scripting flaw within the Barracuda Spam Firewall's web administration interface. This security weakness specifically affects firmware versions prior to 3.5.10.016 and creates a significant attack vector for remote threat actors seeking to compromise the system's administrative environment. The vulnerability manifests when attackers exploit the username field during login attempts, particularly when the Monitor Web Syslog screen is active, allowing malicious script injection into the web interface.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding within the web administration interface. When a user attempts to log in through the web portal, the system fails to properly sanitize the username parameter before displaying it in the Monitor Web Syslog screen. This insufficient sanitization creates an environment where malicious actors can inject arbitrary HTML or JavaScript code that executes within the context of other users' browser sessions. The flaw operates under CWE-79 which classifies the vulnerability as a failure to properly encode output, making it susceptible to XSS attacks. This particular variant demonstrates how administrative interfaces can become attack vectors when proper security controls are absent during user input processing.
The operational impact of this vulnerability extends beyond simple script injection, as it enables attackers to potentially escalate privileges and gain unauthorized access to the firewall's administrative functions. Remote attackers can craft malicious login attempts that, when processed by the system, display harmful scripts to legitimate administrators who view the Monitor Web Syslog screen. This creates a persistent threat where compromised administrators might unknowingly execute malicious code that could redirect them to phishing sites, steal session cookies, or even execute commands on the underlying system. The attack vector is particularly concerning because it leverages legitimate administrative functionality rather than requiring direct system access or exploiting other vulnerabilities.
Mitigation strategies for CVE-2007-5058 should prioritize immediate firmware updates to version 3.5.10.016 or later, which contain the necessary patches to address the input validation deficiencies. Organizations should also implement network segmentation to limit access to the firewall's administrative interface, ensuring that only authorized personnel can reach the vulnerable web administration screens. Additional protective measures include implementing web application firewalls to monitor and filter suspicious requests, conducting regular security assessments of administrative interfaces, and establishing robust monitoring protocols for unusual login patterns or system behavior. The vulnerability aligns with ATT&CK technique T1078 which covers valid accounts and privilege escalation, highlighting how web interface vulnerabilities can enable attackers to assume administrative roles through crafted input manipulation. Security teams should also consider implementing automated patch management processes to ensure timely deployment of security updates and maintain compliance with industry standards such as NIST SP 800-53 controls for secure system administration.