OpenSMTPD 6.6.1 Local Privilege Escalation

Exploit Title: OpenSMTPD 6.6.1 - Local Privilege Escalation Date: 2020-02-02 Exploit Author: Marco Ivaldi Vendor Homepage: https://www.opensmtpd.org/ Version: OpenSMTPD 6.4.0 - 6.6.1 Tested on: OpenBSD 6.6, Debian GNU/Linux bullseye/sid with opensmtpd 6.6.1p1-1 CVE: CVE-2020-7247 !/usr/bin/perl...

The vulnerability in the smtp_mailaddr function (smtp_session.c) of the OpenSMTPD mail daemon on the OpenBSD operating system allows a hacker to elevate their privileges and execute arbitrary commands with root privileges.

The vulnerability in the smtpmailaddr function smtpsession.c of the OpenSMTPD mail daemon on the OpenBSD operating system is related to the lack of data validation during return operations. Exploitation of this vulnerability allows a remote attacker to execute arbitrary commands with root...

OpenSMTPD 6.4.0 6.6.1 - Local Privilege Escalation + Remote Code Execution

OpenSMTPD 6.4.0 6.6.1 - Local Privilege Escalation + Remote Code Execution Exploit Title: OpenSMTPD 6.6.1 - Local Privilege Escalation Date: 2020-02-02 Exploit Author: Marco Ivaldi Vendor Homepage: https://www.opensmtpd.org/ Version: OpenSMTPD 6.4.0 - 6.6.1 Tested on: OpenBSD 6.6, Debian GNU/Linu...

OpenSMTPD 6.6.1 - Local Privilege Escalation Exploit

Exploit Title: OpenSMTPD 6.6.1 - Local Privilege Escalation Date: 2020-02-02 Exploit Author: Marco Ivaldi Vendor Homepage: https://www.opensmtpd.org/ Version: OpenSMTPD 6.4.0 - 6.6.1 Tested on: OpenBSD 6.6, Debian GNU/Linux bullseye/sid with opensmtpd 6.6.1p1-1 CVE: CVE-2020-7247 !/usr/bin/perl...

OpenSMTPD 6.4.0 < 6.6.1 - Local Privilege Escalation + Remote Code Execution

Exploit Title: OpenSMTPD 6.6.1 - Local Privilege Escalation Date: 2020-02-02 Exploit Author: Marco Ivaldi Vendor Homepage: https://www.opensmtpd.org/ Version: OpenSMTPD 6.4.0 - 6.6.1 Tested on: OpenBSD 6.6, Debian GNU/Linux bullseye/sid with opensmtpd 6.6.1p1-1 CVE: CVE-2020-7247 !/usr/bin/perl...

OpenSMTPD MAIL FROM command injection

Added: 02/10/2020 CVE: CVE-2020-7247 Background OpenSMTPD is a free SMTP implementation. It comes with the OpenBSD operating system but is also available for other platforms. Problem The smtpmailaddr function does not properly sanitize user input, allowing remote attackers to inject arbitrary...

OpenSMTPD - MAIL FROM Remote Code Execution (Metasploit)

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'OpenSMTPD MAIL FROM Remote Code Execution', 'Description' = %q This module exploits a command injection in the MAIL FROM field during SMTP...

OpenSMTPD - MAIL FROM Remote Code Execution Exploit

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'OpenSMTPD MAIL FROM Remote Code Execution', 'Description' = %q This module exploits a command injection in the MAIL FROM field during SMTP...

OpenSMTPD MAIL FROM command injection

Added: 02/10/2020 CVE: CVE-2020-7247 Background OpenSMTPD is a free SMTP implementation. It comes with the OpenBSD operating system but is also available for other platforms. Problem The smtpmailaddr function does not properly sanitize user input, allowing remote attackers to inject arbitrary...

Fedora 30 : libasr / opensmtpd (2020-270ef80e9e)

libasr-1.0.4, opensmtpd-6.6.2p1 update Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. C Tenable...

Fedora 31 : libasr / opensmtpd (2020-a861033a4d)

libasr-1.0.4, opensmtpd-6.6.2p1 update Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. C Tenable...

[SECURITY] Fedora 31 Update: opensmtpd-6.6.2p1-1.fc31

OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defi ned by RFC 5321, with some additional standard extensions. It allows ordinary machines to exchange e-mails with other systems speaking the SMTP protocol. Started out of dissatisfaction with other implementations, OpenSMTP...

[SECURITY] Fedora 31 Update: libasr-1.0.4-1.fc31

Libasr allows to run DNS queries and perform hostname resolutions in a fully asynchronous fashion. The implementation is thread-less, fork-less, and doe s not make use of signals or other "tricks" that might get in the developer's way. The API was initially developed for the OpenBSD operating...

[SECURITY] Fedora 30 Update: opensmtpd-6.6.2p1-1.fc30

OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defi ned by RFC 5321, with some additional standard extensions. It allows ordinary machines to exchange e-mails with other systems speaking the SMTP protocol. Started out of dissatisfaction with other implementations, OpenSMTP...

Fedora: Security Advisory for opensmtpd (FEDORA-2020-270ef80e9e)

The remote host is missing an update for the SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Fedora: Security Advisory for libasr (FEDORA-2020-270ef80e9e)

The remote host is missing an update for the SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Fedora: Security Advisory for opensmtpd (FEDORA-2020-a861033a4d)

The remote host is missing an update for the SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

OpenSMTPD MAIL FROM Remote Code Execution

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'OpenSMTPD MAIL FROM Remote Code Execution', 'Description' = %q This module exploits a command injection in the MAIL FROM field during SMTP...

Ubuntu: Security Advisory (USN-4268-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Ubuntu 18.04 LTS : OpenSMTPD vulnerability (USN-4268-1)

The remote Ubuntu 18.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-4268-1 advisory. It was discovered that OpenSMTPD incorrectly verified the sender's or receiver's e-mail addresses under certain conditions. An attacker could use this vulnerabili...