CVE-2013-3900

MEDIUM KEV RANSOMWARE

Microsoft Windows 10 1507 - Signature Verification Bypass

Title source: rule

Description

Why is Microsoft republishing a CVE from 2013? We are republishing CVE-2013-3900 in the Security Update Guide to update the Security Updates table and to inform customers that the EnableCertPaddingCheck is available in all currently supported versions of Windows 10 and Windows 11. While the format is different from the original CVE published in 2013, except for clarifications about how to configure the EnableCertPaddingCheck registry value, the information herein remains unchanged from the original text published on December 10, 2013, Microsoft does not plan to enforce the stricter verification behavior as a default functionality on supported releases of Microsoft Windows. This behavior remains available as an opt-in feature via reg key setting, and is available on supported editions of Windows released since December 10, 2013. This includes all currently supported versions of Windows 10 and Windows 11. The supporting code for this reg key was incorporated at the time of release for Windows 10 and Windows 11, so no security update is required; however, the reg key must be set. See the Security Updates table for the list of affected software. Vulnerability Description A remote code execution vulnerability exists in the way that the WinVerifyTrust function handles Windows Authenticode signature verification for portable executable (PE) files. An anonymous attacker could exploit the vulnerability by modifying an existing signed executable file to leverage unverified portions of the file in such a way as to add malicious code to the file without invalidating the signature. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. If a user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. Exploitation of this vulnerability requires that a user or application run or install a specially crafted, signed PE file. An attacker could modify an... See more at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2013-3900

Exploits (16)

nomisec WORKING POC 4 stars
by norvethil · poc
https://github.com/norvethil/CVE-2013-3900-PowerShell-PoC
nomisec WORKING POC 4 stars
by PREN0MEN · poc
https://github.com/PREN0MEN/CVE-2013-3900-PowerShell-PoC
nomisec WORKING POC 3 stars
by CyberCondor · poc
https://github.com/CyberCondor/Fix-WinVerifyTrustSignatureValidationVuln
nomisec SCANNER
by SDimitri05 · poc
https://github.com/SDimitri05/cve-2013-3900-winverifytrust-mitigation
nomisec WRITEUP
by ksgassama-lab · poc
https://github.com/ksgassama-lab/vulnerability-remediation-cve-2013-3900
nomisec WORKING POC
by piranhap · poc
https://github.com/piranhap/CVE-2013-3900_Remediation_PowerShell
nomisec WRITEUP
by oukridrig772 · poc
https://github.com/oukridrig772/-WinVerifyTrust-Signature-Validation-CVE-2013-3900-Mitigation
nomisec SCANNER
by Sabecomoeh · poc
https://github.com/Sabecomoeh/CVE-2013-3900
nomisec WRITEUP
by malaya-m · poc
https://github.com/malaya-m/cve-2013-3900-remediation-report
nomisec WRITEUP
by pkblanks · poc
https://github.com/pkblanks/Remediating-CVE-2013-3900-EnableCertPaddingCheck-
nomisec WORKING POC
by DavidBr27 · poc
https://github.com/DavidBr27/CVE-2013-3900-Remediation-Script
nomisec NO CODE
by AdenilsonSantos · poc
https://github.com/AdenilsonSantos/WinVerifyTrust
nomisec WORKING POC
by OtisSymbos · poc
https://github.com/OtisSymbos/CVE-2013-3900-WinTrustVerify
nomisec WRITEUP
by Securenetology · poc
https://github.com/Securenetology/CVE-2013-3900
nomisec NO CODE
by snoopopsec · poc
https://github.com/snoopopsec/vulnerability-CVE-2013-3900
patchapalooza WORKING POC
by med0x2e · client-side
https://github.com/med0x2e/SigFlip

Scores

CVSS v3 5.5
EPSS 0.7479
EPSS Percentile 98.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Details

CISA KEV 2022-01-10
VulnCheck KEV 2014-07-29
InTheWild.io 2021-11-01
ENISA EUVD EUVD-2013-3832
Ransomware Use Confirmed
CWE
CWE-347
Status published
Products (43)
microsoft/windows_10_1507
microsoft/windows_10_1607 (2 CPE variants)
microsoft/windows_10_1809 (3 CPE variants)
microsoft/windows_10_1909
microsoft/windows_10_20h2
microsoft/windows_10_21h1
microsoft/windows_10_21h2
microsoft/windows_10_22h2
Microsoft/Windows 10 Version 1507
Microsoft/Windows 10 Version 1607
... and 33 more
Published Dec 11, 2013
KEV Added Jan 10, 2022
Tracked Since Feb 18, 2026