Loading vulnerability…
CVE-2013-1347 is a use-after-free vulnerability in Microsoft Internet Explorer 8 involving improper handling of CGenericElement objects in memory. Accessing an object that has been deleted or improperly allocated can corrupt memory and allow arbitrary code execution in the current user's security context when specially crafted web content is viewed. The vulnerability was exploited in the wild in May 2013 and subsequently incorporated into multiple exploit kits and targeted watering-hole campaigns.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module implementing a weaponized exploit for CVE-2013-1347, a use-after-free vulnerability in Microsoft Internet Explorer 8. The exploit is delivered via a malicious HTTP server that serves specially crafted HTML and JavaScript to vulnerable clients. When a user with a vulnerable version of IE8 on Windows XP SP3, Vista, Server 2003, or Windows 7 visits the attacker's page, the exploit triggers a use-after-free in the CGenericElement object, allowing for arbitrary code execution. The module supports multiple targets and uses ROP chains tailored to the OS version. The payload is fully customizable via Metasploit, enabling the attacker to execute arbitrary code (such as a reverse shell or Meterpreter session) in the context of the browser process. The main entry point is the Ruby file 'modules/exploits/windows/browser/ie_cgenericelement_uaf.rb', which leverages Metasploit's HTTP server and browser autopwn capabilities. The only fingerprintable endpoint is the HTTP server hosted by the attacker, which serves the exploit to visiting clients.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
13 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A publicly disclosed use-after-free vulnerability in Internet Explorer can corrupt memory and allow arbitrary code execution with the current user's privileges when the user views a specially crafted webpage. Administrative users could face complete system compromise. The bulletin rates the flaw Critical for Internet Explorer 8 on Windows clients and Moderate on Windows servers. Internet Explorer 9 also receives an update, but its default configuration blocks known attack vectors, so no severity rating is assigned. Microsoft addresses the flaw through MS13-038 (KB2847204), which changes how Internet Explorer handles objects in memory. Available mitigations include the MSHTML Shim Fix it workaround, restricting Active Scripting and ActiveX, Enhanced Security Configuration, and EMET configured for Internet Explorer.
A specific vulnerability used by multiple exploit kits according to the table.
A Microsoft Internet Explorer CGenericElement use-after-free vulnerability exploited by the LightsOut exploit kit against IE8 on Windows XP, with code closely matching a Metasploit module.
An Internet Explorer vulnerability used by the exploit kit against IE8 on Windows XP, 2000, or 2003 systems as part of the infection chain.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.