CVE-2020-7247

Known Exploited Vulnerability

OpenSMTPD Remote Code Execution Vulnerability

Vendor / product: OpenBSD / OpenSMTPD

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.

Weakness classification

• CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
• CWE-755: Improper Handling of Exceptional Conditions

Primary references

• cve@mitre.org — Exploit, Third Party Advisory, VDB Entry
• cve@mitre.org — Exploit, Third Party Advisory, VDB Entry
• cve@mitre.org — Exploit, Third Party Advisory, VDB Entry
• cve@mitre.org — Exploit, Third Party Advisory, VDB Entry
• cve@mitre.org — Broken Link, Third Party Advisory, VDB Entry
• cve@mitre.org — Exploit, Mailing List, Third Party Advisory
• cve@mitre.org — Exploit, Mailing List, Third Party Advisory
• cve@mitre.org — Patch
• cve@mitre.org — Mailing List, Third Party Advisory
• cve@mitre.org — Mailing List, Third Party Advisory
• cve@mitre.org — Third Party Advisory
• cve@mitre.org — Mailing List, Third Party Advisory