CVE-2020-7247 - OpenBSD OpenSMTPD
AI Vulnerability Contextsmtp_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.
Overview
A source-backed snapshot of this vulnerability.
CISA KEVyesWhether CISA lists this as exploited.
Techniques0AI attack methods connected to this vulnerability.
Case studies0Examples where this vulnerability is mentioned.
Vulnerability status
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CISA KEVCRITICAL
- CVE ID
- CVE-2020-7247
- Vendor/project
- OpenBSD
- Product
- OpenSMTPD
- Vulnerability name
- OpenSMTPD Remote Code Execution Vulnerability
- Date added
- 2022-03-25
- Due date
- 2022-04-15
- Known ransomware campaign use
- Unknown
- CVSS v3
- 9.8
CWE-755CWE-78
Exploit context
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No description available. The source record only contains identifiers and metadata.
Source evidence
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Original source
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NVD CVE pagehttps://nvd.nist.gov/vuln/detail/CVE-2020-7247CVE API docshttps://nvd.nist.gov/developers/vulnerabilitiesData feedshttps://nvd.nist.gov/vuln/data-feedsCataloghttps://www.cisa.gov/known-exploited-vulnerabilities-catalogData repositoryhttps://github.com/cisagov/kev-dataaf854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/156137/OpenBSD-OpenSMTPD-Privilege-Escalation-Code-Execution.htmlaf854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/156145/OpenSMTPD-6.6.2-Remote-Code-Execution.htmlaf854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/156249/OpenSMTPD-MAIL-FROM-Remote-Code-Execution.htmlaf854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/156295/OpenSMTPD-6.6.1-Local-Privilege-Escalation.htmlaf854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/162093/OpenBSD-OpenSMTPD-6.6-Remote-Code-Execution.htmlaf854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2020/Jan/49af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2020/01/28/3af854a3a-2127-422b-91ae-364da2661108https://github.com/openbsd/src/commit/9dcfda045474d8903224d175907bfc29761dcb45af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OPH4QU4DNVHA7ACFXMYFCEP5PSXXPN4E/af854a3a-2127-422b-91ae-364da2661108https://seclists.org/bugtraq/2020/Jan/51af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4268-1/af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2020/dsa-4611