CVE-2020-7247: OpenSMTPD 6.4.0-6.6.1 – Remote Code Execution

CVE-2020-7247: OpenSMTPD 6.4.0-6.6.1 - Remote Code Execution-渗透云记 - 专注于网络安全与技术分享
CVE-2020-7247: OpenSMTPD 6.4.0-6.6.1 – Remote Code Execution
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漏洞标题

CVE-2020-7247: OpenSMTPD 6.4.0-6.6.1 – Remote Code Execution

漏洞描述

OpenSMTPD versions 6.4.0 – 6.6.1 are susceptible to remote code execution. smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session, as demonstrated by shell metacharacters in a MAIL FROM field. This affects the "uncommented" default configuration. The issue exists because of an incorrect return value upon failure of input validation.

PoC代码

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