CVE-2013-1669 in Firefox
Summary
by MITRE
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 21.0 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 05/11/2021
The vulnerability identified as CVE-2013-1669 represents a critical security flaw within the browser engine of Mozilla Firefox versions prior to 21.0. This issue falls under the category of unspecified vulnerabilities, indicating that the exact nature of the underlying technical flaws was not fully disclosed in the initial vulnerability report. The affected component resides in the core browser engine responsible for processing web content, making it a fundamental attack surface for remote threat actors. Such vulnerabilities in browser engines are particularly dangerous because they can be exploited through standard web browsing activities without requiring any special privileges or user interaction beyond visiting a malicious website.
The technical characteristics of this vulnerability manifest as memory corruption issues that result in application crashes and potential arbitrary code execution capabilities. Memory corruption vulnerabilities typically occur when software writes data to memory locations outside the intended boundaries, leading to unpredictable behavior that can be exploited by attackers. The unspecified nature of the vectors suggests that multiple attack paths may exist within the browser engine, potentially involving different web technologies such as javascript, html parsing, or css rendering components. These vulnerabilities are classified under CWE-119 Improper Access to Memory and CWE-125 Out-of-bounds Read, which are common categories for browser engine exploits. The attack vectors likely involve crafted web content that triggers memory corruption when processed by Firefox's rendering engine, potentially leveraging techniques such as buffer overflows or use-after-free conditions.
From an operational impact perspective, this vulnerability creates significant risk for users of affected Firefox versions, as it enables remote code execution capabilities that could allow attackers to gain full control over compromised systems. The potential for denial of service combined with arbitrary code execution means that attackers could install malware, steal sensitive data, or establish persistent backdoors on victim systems. The vulnerability affects all users of Firefox versions before 21.0 regardless of their security awareness or system configuration, making it particularly dangerous in enterprise environments where browser updates may be delayed. The attack surface is broad since any web page could potentially serve as an exploit vector, requiring users to visit malicious websites or be tricked into clicking on compromised links. This vulnerability directly maps to several ATT&CK tactics including initial access through malicious websites, execution via code injection, and privilege escalation if the browser process has elevated permissions.
Organizations and individuals should immediately update to Firefox 21.0 or later versions to remediate this vulnerability, as no effective workarounds exist for the affected versions. The update process should be prioritized across all systems where Firefox is installed, particularly in enterprise environments where automated patch management systems should be configured to detect and deploy the update immediately. Security teams should monitor for any reports of exploitation attempts targeting this vulnerability and implement network-based detection measures such as intrusion detection systems that can identify traffic patterns associated with exploitation attempts. Additionally, browser hardening techniques should be implemented including disabling unnecessary browser features, configuring security extensions, and implementing content security policies to reduce the attack surface. The vulnerability highlights the importance of maintaining current browser versions and implementing robust patch management processes to protect against known security flaws. Regular security assessments should include verification that all browser installations are current with the latest security patches, as this vulnerability demonstrates how quickly browser engines can become compromised through exploitation of underlying memory management flaws.