Executive Summary
This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary | |
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Title | OpenSMTPD vulnerable to local privilege escalation and remote code execution |
Informations | |||
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Name | VU#390745 | First vendor Publication | 2020-03-09 |
Vendor | VU-CERT | Last vendor Modification | 2020-03-09 |
Severity (Vendor) | N/A | Revision | M |
Security-Database Scoring CVSS v3
Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | |||
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Overall CVSS Score | 9.8 | ||
Base Score | 9.8 | Environmental Score | 9.8 |
impact SubScore | 5.9 | Temporal Score | 9.8 |
Exploitabality Sub Score | 3.9 | ||
Attack Vector | Network | Attack Complexity | Low |
Privileges Required | None | User Interaction | None |
Scope | Unchanged | Confidentiality Impact | High |
Integrity Impact | High | Availability Impact | High |
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:N/AC:L/Au:N/C:C/I:C/A:C) | |||
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Cvss Base Score | 10 | Attack Range | Network |
Cvss Impact Score | 10 | Attack Complexity | Low |
Cvss Expoit Score | 10 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
OpenSMTPD is an open-source server-side implementation of the Simple Mail Transfer Protocol(SMTP)that is part of the OpenBSD Project. OpenSMTPD's smtp_mailaddr()function is responsible for validating sender and recipient mail addresses. If the local part of an address is invalid and the domain name is empty,smtp_mailaddr()will automatically add a domain name as opposed to failing because of the invalid local address. This will allow the invalid local address to pass through the function without validation. |
Original Source
Url : https://kb.cert.org/vuls/id/390745 |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
50 % | CWE-755 | Improper Handling of Exceptional Conditions |
50 % | CWE-78 | Improper Sanitization of Special Elements used in an OS Command ('OS Command Injection') (CWE/SANS Top 25) |
CPE : Common Platform Enumeration
Type | Description | Count |
---|---|---|
Application | 1 | |
Os | 2 | |
Os | 2 | |
Os | 1 |
SAINT Exploits
Description | Link |
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OpenSMTPD MAIL FROM command injection | More info here |
Snort® IPS/IDS
Date | Description |
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2020-04-14 | OpenSMTPD smtp_mailaddr command injection attempt RuleID : 53432 - Revision : 1 - Type : SERVER-MAIL |
2020-04-14 | OpenSMTPD smtp_mailaddr command injection attempt RuleID : 53431 - Revision : 1 - Type : SERVER-MAIL |
Alert History
Date | Informations |
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2020-05-23 13:15:43 |
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