A vulnerability in Mozilla Firefox, Thunderbird, and SeaMonkey could allow an unauthenticated, remote attacker to execute arbitrary code or conduct cross-site scripting (XSS) attacks.
The vulnerability is due to an unspecified error in the affected software while creating certain Certificate Request Message Format (CRMF) requests. An attacker could exploit this vulnerability by convincing a user to visit a malicious web page. When the user visits the page, the attacker could execute arbitrary code or conduct XSS attacks on the system.
Functional code that exploits this vulnerability is available as part of the Metasploit framework.
Mozilla has confirmed the vulnerability and released updated software.
Indicators of Compromise
The following Mozilla products are affected:
Firefox versions prior to 23.0
Firefox ESR versions prior to 17.0.8
Thunderbird versions prior to 17.0.8
Thunderbird ESR versions prior to 17.0.8
SeaMonkey versions prior to 2.20
The vulnerability is due an unspecified error in crypto.generateCRMFRequest() function of the affected software while generating a CRMF request under certain conditions.
Additional technical information is not available.
To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link.
The vulnerability is not likely to be exploited through email in Thunderbird and SeaMonkey because the products have scripting disabled; however, the vulnerability could be a risk in the browser or browser-like contexts of the products.
Administrators are advised to apply the appropriate updates.
Users should verify that unsolicited links are safe to follow.
Red Hat has released updated software for registered subscribers at the following link: Red Hat Network. Red Hat packages can be updated on Red Hat Enterprise Linux versions 5 and later using the yum tool.
Functional code that demonstrates an exploit of the Mozilla Firefox, Thunderbird, and SeaMonkey CRMF requests remote code execution vulnerability is publicly available.
2014-August-20 19:21 GMT
FreeBSD has released a VuXML document and updated ports collection to address the Mozilla Firefox, Thunderbird, and SeaMonkey CRMF requests remote code execution vulnerability.
2013-August-12 11:57 GMT
Mozilla Firefox, Thunderbird, and SeaMonkey contain a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code or conduct cross-site scripting attacks on a targeted system. Updates are available.
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Cisco Multivendor Vulnerability Alerts respond to vulnerabilities identified in third-party vendors' products. These alerts contain information compiled from diverse sources and provide comprehensive technical descriptions, objective analytical assessments, workarounds and practical safeguards, and links to vendor advisories and patches.