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nvd-json-data-feeds/CVE-2021/CVE-2021-40xx/CVE-2021-4034.json
René Helmke 7791f18b51 bootstrap
2023-05-16 16:09:41 +02:00

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{
"id": "CVE-2021-4034",
"sourceIdentifier": "secalert@redhat.com",
"published": "2022-01-28T20:15:12.193",
"lastModified": "2023-02-13T21:15:11.917",
"vulnStatus": "Modified",
"cisaExploitAdd": "2022-06-27",
"cisaActionDue": "2022-07-18",
"cisaRequiredAction": "Apply updates per vendor instructions.",
"cisaVulnerabilityName": "Red Hat Polkit Out-of-Bounds Read and Write Vulnerability",
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"value": "A local privilege escalation vulnerability was found on polkit's pkexec utility. The pkexec application is a setuid tool designed to allow unprivileged users to run commands as privileged users according predefined policies. The current version of pkexec doesn't handle the calling parameters count correctly and ends trying to execute environment variables as commands. An attacker can leverage this by crafting environment variables in such a way it'll induce pkexec to execute arbitrary code. When successfully executed the attack can cause a local privilege escalation given unprivileged users administrative rights on the target machine."
},
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"value": "Se ha encontrado una vulnerabilidad de escalada de privilegios local en la utilidad pkexec de polkit. La aplicaci\u00f3n pkexec es una herramienta setuid dise\u00f1ada para permitir a usuarios no privilegiados ejecutar comandos como usuarios con privilegios seg\u00fan pol\u00edticas predefinidas. La versi\u00f3n actual de pkexec no maneja correctamente el recuento de par\u00e1metros de llamada y termina intentando ejecutar variables de entorno como comandos. Un atacante puede aprovechar esto al dise\u00f1ar variables de entorno de tal manera que induzcan a pkexec a ejecutar c\u00f3digo arbitrario. Cuando es ejecutado con \u00e9xito, el ataque puede causar una escalada de privilegios local, dando a usuarios no privilegiados derechos administrativos en la m\u00e1quina de destino"
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