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| Rule General Information |
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| Release Date: | 2020-03-25 | |
| Rule Name: | OpenSMTPD smtp_mailaddr Remote Command Execution Vulnerability (CVE-2020-7247) | |
| Severity: | ||
| CVE ID: | ||
| Rule Protection Details |
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| Description: | 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. | |
| Impact: | An attacker can execute arbitrary command via a successful exploit in the context of the vulnerable software. | |
| Affected OS: | Windows, Others | |
| Reference: | http://packetstormsecurity.com/files/156137/OpenBSD-OpenSMTPD-Privilege-Escalation-Code-Execution.html http://packetstormsecurity.com/files/156145/OpenSMTPD-6.6.2-Remote-Code-Execution.html http://packetstormsecurity.com/files/156249/OpenSMTPD-MAIL-FROM-Remote-Code-Execution.html http://packetstormsecurity.com/files/156295/OpenSMTPD-6.6.1-Local-Privilege-Escalation.html |
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| Solutions |
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| The vendors have released upgrade patches to fix vulnerabilities, please visit: https://github.com/openbsd/src/commit/9dcfda045474d8903224d175907bfc29761dcb45 |