Microsoft Internet Explorer 8 'vtable' code injection

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Internet Explorer 8. It has been classified as critical. Affected is the function mshtml!CGenericElement::'vtable'. Performing a manipulation results in code injection. This vulnerability is identified as CVE-2013-1347. The attack can be initiated remotely. Additionally, an exploit exists. This vulnerability has a historic impact because of its background and how it was received. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Microsoft Internet Explorer 8 (Web Browser). It has been classified as critical. This affects the function mshtml!CGenericElement::'vtable'. The manipulation with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Microsoft Internet Explorer 8 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly allocated or (2) is deleted, as exploited in the wild in May 2013.

The issue has been introduced in 03/05/2008. The weakness was released 05/03/2013 as 2847140 as confirmed advisory (Technet). The advisory is shared at technet.microsoft.com. The public release happened without involvement of Microsoft. This vulnerability is uniquely identified as CVE-2013-1347 since 01/12/2013. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/22/2026). It is expected to see the exploit prices for this product decreasing in the near future.MITRE ATT&CK project uses the attack technique T1059 for this issue. Due to its background and reception, this vulnerability has a historic impact.

A public exploit has been developed in Ruby and been published 2 days after the advisory. The exploit is shared for download at community.rapid7.com. It is declared as attacked. The vulnerability was handled as a non-public zero-day exploit for at least 1885 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 66413 (MS13-038: Security Update for Internet Explorer (2847204)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 100146 (Microsoft Internet Explorer Remote Code Execution Vulnerability (MS13-038)). The CISA Known Exploited Vulnerabilities Catalog lists this issue since 03/03/2022 with a due date of 03/24/2022:

Apply updates per vendor instructions.

Upgrading to version Internet Explorer 9 or 10 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. It is possible to mitigate the problem by applying the configuration setting Zone Security = High. The problem might be mitigated by replacing the product with Google Chrome, Mozilla Firefox or Opera as an alternative. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 27144. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 12916.

The vulnerability is also documented in the databases at X-Force (84007), Exploit-DB (25294), Zero-Day.cz (46), Tenable (66413) and SecurityFocus (BID 59641†). Further details are available at arstechnica.com. Entry connected to this vulnerability is available at VDB-8603. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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NVD Base Score: 8.8
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CNA Base Score: 8.8
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ADP CISA Base Score: 8.8
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CVSSv2info

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Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
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ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Attacked
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Nessus ID: 66413
Nessus Name: MS13-038: Security Update for Internet Explorer (2847204)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 803395
OpenVAS Name: MS Internet Explorer Remote Code Execution Vulnerability (2847140)
OpenVAS File: 🔍
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Saint ID: exploit_info/ie_cgenericelement_memory_corruption
Saint Name: Internet Explorer CGenericElement Object Use-after-free Vulnerability

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: ie_cgenericelement_uaf.rb
MetaSploit Name: MS13-038 Microsoft Internet Explorer CGenericElement Object Use-After-Free Vulnerability
MetaSploit File: 🔍

Exploit-DB: 🔍
Zero-Day.cz: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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Upgrade: Internet Explorer Internet Explorer 9/10
Patch: technet.microsoft.com
Config: Zone Security = High
Alternative: Google Chrome/Mozilla Firefox/Opera

Snort ID: 27144
Snort Message: EXPLOIT-KIT Private exploit kit outbound traffic
Snort Class: 🔍

Suricata ID: 2016822
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TippingPoint: 🔍

McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

03/05/2008 🔍
01/12/2013 +1774 days 🔍
05/03/2013 +111 days 🔍
05/03/2013 +0 days 🔍
05/03/2013 +0 days 🔍
05/05/2013 +2 days 🔍
05/05/2013 +0 days 🔍
05/06/2013 +1 days 🔍
05/15/2013 +9 days 🔍
05/16/2013 +1 days 🔍
04/22/2026 +4724 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: 2847140
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-1347 (🔍)
GCVE (CVE): GCVE-0-2013-1347
GCVE (VulDB): GCVE-100-8601

OVAL: 🔍

X-Force: 84007
SecurityFocus: 59641
Secunia: 53314 - Microsoft Internet Explorer "CGenericElement" Use-After-Free Vulnerability, Extremely Critical
OSVDB: 92993 - Microsoft IE CGenericElement Object Handling Use-after-free Arbitrary Code Execution
SecurityTracker: 1028514 - Microsoft Internet Explorer Object Access Bug Lets Remote Users Execute Arbitrary Code
Vulnerability Center: 39567 - [MS13-038] Microsoft Internet Explorer 8 Remote Code Execution due to a Flaw Accessing Deleted or Improperly Allocated Objects, Critical

scip Labs: https://www.scip.ch/en/?labs.20161013
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Entryinfo

Created: 05/06/2013 17:30
Updated: 04/22/2026 12:57
Changes: 05/06/2013 17:30 (69), 04/07/2017 12:03 (41), 05/10/2021 14:15 (8), 05/10/2021 14:19 (1), 04/23/2024 09:28 (23), 07/14/2024 08:39 (2), 07/16/2024 23:31 (12), 09/09/2024 22:29 (1), 12/28/2024 00:09 (2), 02/04/2025 21:10 (11), 04/22/2026 12:57 (11)
Complete: 🔍
Committer:
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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