Microsoft · Internet Explorer
CVE-2012-4792
Microsoft Internet Explorer Use-After-Free Vulnerability
Qué es
Use-after-free vulnerability in Microsoft Internet Explorer 6 through 8 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to an object that (1) was not properly allocated or (2) is deleted, as demonstrated by a CDwnBindInfo object, and exploited in the wild in December 2012.
CISA: Microsoft Internet Explorer contains a use-after-free vulnerability that allows a remote attacker to execute arbitrary code via a crafted web site that triggers access to an object that (1) was not properly allocated or (2) is deleted, as demonstrated by a CDwnBindInfo object.
Qué hacer
The impacted product is end-of-life and should be disconnected if still in use.
Plazo para las agencias federales de EE. UU.: 13 de agosto de 2024
- Añadida a la lista de CISA
- 23 de julio de 2024
- Publicada
- 30 de diciembre de 2012
- Gravedad
- Alto 8,8 CVSS 3.1
- Probabilidad de ataques en los próximos 30 días (EPSS)
- 79% entre el 0,4% superior de todas las vulnerabilidades conocidas
- Debilidad
- CWE-416
- Más detalles
- NVD · CVE.org · CISA
Todas las referencias (13)
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-008
- http://www.us-cert.gov/cas/techalerts/TA13-008A.html
- http://www.kb.cert.org/vuls/id/154201
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/ie_cbutton_uaf.rb
- http://labs.alienvault.com/labs/index.php/2012/just-another-water-hole-campaign-using-an-internet-explorer-0d…
- http://packetstormsecurity.com/files/119168/Microsoft-Internet-Explorer-CDwnBindInfo-Object-Use-After-Free.ht…
- http://eromang.zataz.com/2012/12/29/attack-and-ie-0day-informations-used-against-council-on-foreign-relations/
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16361
- http://www.us-cert.gov/cas/techalerts/TA13-015A.html
- http://blog.fireeye.com/research/2012/12/council-foreign-relations-water-hole-attack-details.html
- http://blogs.technet.com/b/srd/archive/2012/12/29/new-vulnerability-affecting-internet-explorer-8-users.aspx
- http://technet.microsoft.com/security/advisory/2794220
- http://blogs.technet.com/b/srd/archive/2012/12/31/microsoft-quot-fix-it-quot-available-for-internet-explorer-…
Más fallos explotados de Microsoft
| Añadido | Vulnerabilidad | Producto | Gravedad | Prob. de ataque |
|---|---|---|---|---|
| 20 may 2026 | Use-After-Free | Internet Explorer | Alto 8,8 | 92% |
| 20 may 2026 | Use-After-Free | Internet Explorer | Alto 8,8 | 82% |
| 6 oct 2025 | Uninitialized Memory Corruption | Internet Explorer | Alto 8,1 | 97% |
| 12 ago 2025 | Resource Management Errors | Internet Explorer | Alto 8,8 | 88% |
| 30 mar 2023 | Memory Corruption | Internet Explorer | Alto 8,8 | 71% |
| 8 jun 2022 | Use-After-Free | Internet Explorer | Alto 8,1 | 80% |
| 25 may 2022 | Information Disclosure | Internet Explorer | Media 6,5 | 50% |
| 25 may 2022 | Privilege Escalation | Internet Explorer | Alto 8,8 | 26% |
Fuentes: Known Exploited Vulnerabilities (CISA, dominio público), CVE records (cve.org) y EPSS (FIRST). La probabilidad de ataque es la estimación EPSS de que alguien intente explotar el fallo en los próximos 30 días.