CVE-2008-0971 in Spam Firewall
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in index.cgi in Barracuda Spam Firewall (BSF) before 3.5.12.007, Message Archiver before 1.2.1.002, Web Filter before 3.3.0.052, IM Firewall before 3.1.01.017, and Load Balancer before 2.3.024 allow remote attackers to inject arbitrary web script or HTML via (1) the Policy Name field in Search Based Retention Policy in Message Archiver; unspecified parameters in the (2) IP Configuration, (3) Administration, (4) Journal Accounts, (5) Retention Policy, and (6) GroupWise Sync components in Message Archiver; (7) input to search operations in Web Filter; and (8) input used in error messages and (9) hidden INPUT elements in (a) Spam Firewall, (b) IM Firewall, and (c) Web Filter.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 08/03/2021
The CVE-2008-0971 vulnerability represents a critical cross-site scripting flaw affecting multiple Barracuda security appliances including Spam Firewall, Message Archiver, Web Filter, IM Firewall, and Load Balancer versions prior to specific patch releases. This vulnerability stems from inadequate input validation and sanitization across various components of these security appliances, creating multiple attack vectors that could be exploited by remote attackers to inject malicious scripts into web interfaces. The flaw specifically targets parameters within administrative interfaces and search functionalities, making it particularly dangerous as it could allow attackers to execute arbitrary code in the context of authenticated users' browsers.
The technical implementation of this vulnerability spans several distinct attack surfaces within the Barracuda appliance ecosystem. The most significant attack vectors include the Policy Name field in Message Archiver's Search Based Retention Policy, where unvalidated input allows script injection into web interfaces. Additionally, unspecified parameters in IP Configuration, Administration, Journal Accounts, Retention Policy, and GroupWise Sync components within Message Archiver create multiple entry points for attackers to manipulate input fields. The Web Filter component suffers from input handling issues in search operations, while the Spam Firewall, IM Firewall, and Web Filter appliances contain vulnerable hidden INPUT elements and error message handling mechanisms that could be exploited to execute malicious scripts.
The operational impact of this vulnerability extends beyond simple script injection, as it could enable attackers to perform session hijacking, steal user credentials, redirect users to malicious sites, or even gain administrative access to the affected appliances. Attackers could leverage these XSS vulnerabilities to manipulate the administrative interfaces of security appliances, potentially compromising the entire network security posture. The vulnerability affects not only individual user sessions but also the integrity of the security infrastructure itself, as compromised appliances could be used to bypass security controls or redirect traffic to malicious destinations. This represents a significant threat to organizations relying on Barracuda appliances for email security, web filtering, and network protection.
Organizations should immediately implement mitigation strategies including applying the vendor patches released for versions 3.5.12.007, 1.2.1.002, 3.3.0.052, 3.1.01.017, and 2.3.024 respectively for the affected components. Network segmentation and monitoring of web traffic can help detect exploitation attempts, while implementing proper input validation and output encoding mechanisms should be prioritized. The vulnerability aligns with CWE-79 which specifically addresses Cross-Site Scripting flaws, and maps to ATT&CK technique T1059.007 for script execution through web interfaces. Security teams should also consider implementing web application firewalls to protect against exploitation attempts and establish incident response procedures for potential compromise detection. Regular vulnerability assessments and penetration testing should be conducted to identify similar weaknesses in other network security appliances.