CVE-2005-3059 in Web Browser
Summary
by MITRE
Multiple unspecified vulnerabilities in Opera 8.50 on Linux and Windows have unknown impact and attack vectors, related to (1) " handling of must-revalidate cache directive for HTTPS pages" or (2) a "display issue with cookie comment encoding."
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Analysis
by VulDB Data Team • 07/28/2017
The vulnerability identified as CVE-2005-3059 represents a significant security weakness in Opera 8.50 across multiple operating systems including Linux and Windows platforms. This issue encompasses multiple unspecified vulnerabilities that were not fully detailed in the initial disclosure, creating uncertainty around both the specific attack vectors and the potential impact on user systems. The lack of detailed information in the original description suggests either incomplete disclosure or the presence of multiple related flaws that were grouped together under a single CVE identifier.
The first vulnerability category involves the handling of must-revalidate cache directive for HTTPS pages, which represents a critical flaw in how the browser manages secure content caching mechanisms. This type of vulnerability falls under CWE-200, which deals with information exposure, and could potentially allow attackers to bypass security measures designed to ensure that sensitive HTTPS content is properly revalidated. The must-revalidate cache directive is a standard HTTP header that instructs browsers to revalidate cached content with the origin server before using it, and improper handling of this directive could lead to stale or compromised cached content being served to users. This vulnerability could be exploited through techniques described in the attack pattern taxonomy under ATT&CK technique T1190, which covers exploitation for execution through web-based attacks.
The second vulnerability involves a display issue with cookie comment encoding, which represents a potential information disclosure or injection vulnerability. Cookie comment encoding issues typically fall under CWE-1004, which addresses insecure coding practices related to data handling and validation. When browsers improperly handle cookie comment encoding, it could potentially allow attackers to inject malicious content or extract sensitive information from cookie structures. This type of vulnerability could be leveraged in cross-site scripting attacks or to gather information about user sessions and browser configurations. The encoding issues could also potentially be exploited in conjunction with other vulnerabilities to create more sophisticated attack scenarios.
The operational impact of these vulnerabilities extends beyond simple exploitation possibilities, as they affect fundamental browser security mechanisms that users rely on for secure web browsing. The combination of cache handling issues and cookie encoding problems creates multiple potential attack surfaces that could be used to compromise user sessions, steal sensitive information, or execute unauthorized code. These vulnerabilities represent a failure in the browser's security architecture, particularly in how it processes and validates HTTP headers and cookie data. The fact that these issues were present in Opera 8.50 indicates a lack of proper security testing and validation of core browser components that handle secure communications and user data management.
The mitigation strategies for these vulnerabilities would typically involve immediate software updates and patches from the browser vendor, as well as network-level monitoring for suspicious activities that might indicate exploitation attempts. System administrators should implement comprehensive browser security policies that include regular updates, monitoring of cache behavior, and validation of cookie handling mechanisms. The vulnerabilities highlight the importance of proper input validation and secure coding practices in web browser development, which aligns with security standards such as those outlined in the OWASP Top Ten and NIST cybersecurity frameworks. Organizations should also consider implementing additional security controls such as web application firewalls and network segmentation to reduce the potential impact of such vulnerabilities. The lack of detailed information in the original CVE description emphasizes the need for comprehensive vulnerability assessment and the importance of vendor transparency in security disclosures.