CVE-2012-4969
Estado: AnalizadaAlta (8.1)⚠ Explotación activa
Use-after-free vulnerability in the CMshtmlEd::Exec function in mshtml.dll in Microsoft Internet Explorer 6 through 9 allows remote attackers to execute arbitrary code via a crafted web site, as exploited in the wild in September 2012.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 8.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 80%
- Percentil entre todas las CVEs puntuadas: 100
- Fecha de la puntuación: 4/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
CISA KEV — explotada activamente
- Añadida al catálogo: 8/6/2022
- Plazo de remediación: 22/6/2022
- Uso conocido en ransomware: Unknown
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1190Exploit Public-Facing Applicationinitial access90 % - Impacto principal
T1059Command and Scripting Interpreterexecution85 %
Use-after-free en mshtml.dll de IE explotable remotamente mediante sitio web crafted (AV:N, ejecución de código arbitrario confirmada en ataques reales septiembre 2012).
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-416
- CWE-416
Referencias
- http://blog.vulnhunt.com/index.php/2012/09/17/ie-execcommand-fuction-use-after-free-vulnerability-0day_en/
- http://dev.metasploit.com/redmine/projects/framework/repository/entry/modules/exploits/windows/browser/ie_execcommand_uaf.rb
- http://eromang.zataz.com/2012/09/16/zero-day-season-is-really-not-over-yet/
- http://technet.microsoft.com/security/advisory/2757760
- http://www.kb.cert.org/vuls/id/480095
- http://www.securitytracker.com/id?1027538
- http://www.securityweek.com/new-internet-explorer-zero-day-being-exploited-wild
- http://www.us-cert.gov/cas/techalerts/TA12-255A.html
- http://www.us-cert.gov/cas/techalerts/TA12-262A.html
- http://www.us-cert.gov/cas/techalerts/TA12-265A.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15729
- http://blog.vulnhunt.com/index.php/2012/09/17/ie-execcommand-fuction-use-after-free-vulnerability-0day_en/
- http://dev.metasploit.com/redmine/projects/framework/repository/entry/modules/exploits/windows/browser/ie_execcommand_uaf.rb
- http://eromang.zataz.com/2012/09/16/zero-day-season-is-really-not-over-yet/
- http://technet.microsoft.com/security/advisory/2757760
- http://www.kb.cert.org/vuls/id/480095
- http://www.securitytracker.com/id?1027538
- http://www.securityweek.com/new-internet-explorer-zero-day-being-exploited-wild
- http://www.us-cert.gov/cas/techalerts/TA12-255A.html
- http://www.us-cert.gov/cas/techalerts/TA12-262A.html
- http://www.us-cert.gov/cas/techalerts/TA12-265A.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15729
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-4969
JSON original (NVD)
Mostrar
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"matchCriteriaId": "06BBFA69-94E2-4BAB-AFD3-BC434B11D106"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "5F422A8C-2C4E-42C8-B420-E0728037E15C"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:*",
"vulnerable": false,
"matchCriteriaId": "2127D10C-B6F3-4C1D-B9AA-5D78513CC996"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:*:*:*:*:*:x64:*",
"vulnerable": false,
"matchCriteriaId": "B7674920-AE12-4A25-BE57-34AEDDA74D76"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*",
"vulnerable": false,
"matchCriteriaId": "AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "BF1AD1A1-EE20-4BCE-9EE6-84B27139811C"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:x64:*",
"vulnerable": false,
"matchCriteriaId": "6FF85ADB-8F36-424D-9F4A-BD357304CE66"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "cve@mitre.org",
"cisaRequiredAction": "Apply updates per vendor instructions.",
"cisaVulnerabilityName": "Microsoft Internet Explorer Use-After-Free Vulnerability"
}