CVE-2020-7247
CRITICAL
9,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
HIGH
10,0
Source: [email protected]
Access Vector: network
Access Complexity: low
Authentication: none
Confidentiality: complete
Integrity: complete
Availability: complete
Description
AI Translation Available
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.
EPSS (Exploit Prediction Scoring System)
Trend Analysis
EPSS (Exploit Prediction Scoring System)
Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.
EPSS Score
0,9411
Percentile
1,0th
Updated
EPSS Score Trend (Last 90 Days)
78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
StableCommon Consequences
Security Scopes Affected:
Confidentiality
Integrity
Availability
Non-Repudiation
Potential Impacts:
Execute Unauthorized Code Or Commands
Dos: Crash, Exit, Or Restart
Read Files Or Directories
Modify Files Or Directories
Read Application Data
Modify Application Data
Hide Activities
Applicable Platforms
Technologies:
AI/ML, Not Technology-Specific, Web Server
755
Improper Handling of Exceptional Conditions
IncompleteCommon Consequences
Security Scopes Affected:
Other
Potential Impacts:
Other
Applicable Platforms
All platforms may be affected
Exploit
OpenSMTPD 6.6.1 - Remote Code Execution
VerifiedOpenSMTPD 6.6.1 - Remote Code Execution
View Exploit Code →
Exploit
OpenSMTPD - MAIL FROM Remote Code Execution (Metasploit)
Verified Metasploit Framework (MSF)OpenSMTPD - MAIL FROM Remote Code Execution (Metasploit)
View Exploit Code →
Exploit
OpenSMTPD 6.4.0 < 6.6.1 - Local Privilege Escalation …
VerifiedOpenSMTPD 6.4.0 < 6.6.1 - Local Privilege Escalation + Remote Code Execution
View Exploit Code →
Operating System
Debian Linux by Debian
CPE Identifier
View Detailed Analysis
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System
Ubuntu Linux by Canonical
CPE Identifier
View Detailed Analysis
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System
Fedora by Fedoraproject
CPE Identifier
View Detailed Analysis
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System
Ubuntu Linux by Canonical
CPE Identifier
View Detailed Analysis
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System
Debian Linux by Debian
CPE Identifier
View Detailed Analysis
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application
Opensmtpd by Openbsd
CPE Identifier
View Detailed Analysis
cpe:2.3:a:openbsd:opensmtpd:6.6:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020…
http://packetstormsecurity.com/files/156137/OpenBSD-OpenSMTPD-Privilege-Escalat…
http://packetstormsecurity.com/files/156145/OpenSMTPD-6.6.2-Remote-Code-Executi…
http://packetstormsecurity.com/files/156249/OpenSMTPD-MAIL-FROM-Remote-Code-Exe…
http://packetstormsecurity.com/files/156295/OpenSMTPD-6.6.1-Local-Privilege-Esc…
http://packetstormsecurity.com/files/162093/OpenBSD-OpenSMTPD-6.6-Remote-Code-E…
http://seclists.org/fulldisclosure/2020/Jan/49
https://github.com/openbsd/src/commit/9dcfda045474d8903224d175907bfc29761dcb45
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapr…
https://seclists.org/bugtraq/2020/Jan/51
https://usn.ubuntu.com/4268-1/
https://www.debian.org/security/2020/dsa-4611
https://www.kb.cert.org/vuls/id/390745
https://www.openbsd.org/security.html
http://www.openwall.com/lists/oss-security/2020/01/28/3
http://packetstormsecurity.com/files/156137/OpenBSD-OpenSMTPD-Privilege-Escalat…
http://packetstormsecurity.com/files/156145/OpenSMTPD-6.6.2-Remote-Code-Executi…
http://packetstormsecurity.com/files/156249/OpenSMTPD-MAIL-FROM-Remote-Code-Exe…
http://packetstormsecurity.com/files/156295/OpenSMTPD-6.6.1-Local-Privilege-Esc…
http://packetstormsecurity.com/files/162093/OpenBSD-OpenSMTPD-6.6-Remote-Code-E…
http://seclists.org/fulldisclosure/2020/Jan/49
https://github.com/openbsd/src/commit/9dcfda045474d8903224d175907bfc29761dcb45
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapr…
https://seclists.org/bugtraq/2020/Jan/51
https://usn.ubuntu.com/4268-1/
https://www.debian.org/security/2020/dsa-4611
https://www.kb.cert.org/vuls/id/390745
https://www.openbsd.org/security.html
http://www.openwall.com/lists/oss-security/2020/01/28/3