New OpenSMTPD RCE Flaw Affects Linux and OpenBSD Email Servers

OpenSMTPD has been found vulnerable to yet another critical vulnerability that could allow remote attackers to take complete control over email servers running BSD or Linux operating systems. OpenSMTPD, also known as OpenBSD SMTP Server, is an open-source implementation of the Simple Mail Transfe...

OpenSMTPD Releases Version 6.6.4p1 to Address a Critical Vulnerability

OpenSMTPD has released version 6.6.4p1 to address a critical vulnerability. A remote attacker could exploit this vulnerability to take control of an affected server. OpenSMTPD is an open-source server-side implementation of the Simple Mail Transfer Protocol SMTP that is part of the OpenBSD Projec...

FreeBSD : OpenSMTPd -- Local information disclosure (76f1ce19-5749-11ea-bff8-c85b76ce9b5a)

Qualys reports : We discovered a minor vulnerability in OpenSMTPD, OpenBSD's mail server : an unprivileged local attacker can read the first line of an arbitrary file for example, root's password hash in /etc/master.passwd or the entire contents of another user's file if this file and...

OpenSMTPD Out-Of-Bounds Read

Qualys Security Advisory LPE and RCE in OpenSMTPD's default install CVE-2020-8794 ============================================================================== Contents ============================================================================== Summary Analysis ... Acknowledgments...

FreeBSD : OpenSMTPd -- LPE and RCE in OpenSMTPD's default install (40c75597-574a-11ea-bff8-c85b76ce9b5a)

Qualys reports : . C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from the FreeBSD VuXML database : Copyright 2003-2020 Jacques Vidrine and contributors Redistribution and use in source VuXML and 'compiled' forms SGML, HTML, PDF, PostScript,...

FreeBSD : OpenSMTPd -- LPE and RCE in OpenSMTPD's default install (f0683976-5779-11ea-8a77-1c872ccb1e42)

OpenSMTPD developers reports : An out of bounds read in smtpd allows an attacker to inject arbitrary commands into the envelope file which are then executed as root. Separately, missing privilege revocation in smtpctl allows arbitrary commands to be run with the smtpq group. An unprivileged local...

PT-2020-5157 · Openbsd +1 · Opensmtpd +1

Name of the Vulnerable Software and Affected Versions: OpenSMTPD versions prior to 6.6.4 Description: The issue is related to an out-of-bounds read in the mta io function in mta session.c for multi-line replies, which can allow remote code execution. Although this affects the client side of...

OpenSMTPd -- LPE and RCE in OpenSMTPD's default install

Qualys reports:...

OpenSMTPd -- Local information disclosure

Qualys reports: We discovered a minor vulnerability in OpenSMTPD, OpenBSD's mail server: an unprivileged local attacker can read the first line of an arbitrary file for example, root's password hash in /etc/master.passwd or the entire contents of another user's file if this file and...

OpenSMTPD OOB Read Local Privilege Escalation

This module exploits an out-of-bounds read of an attacker-controlled string in OpenSMTPD's MTA implementation to execute a command as the root or nobody user, depending on the kind of grammar OpenSMTPD uses. Module Options msf use exploit/unix/local/opensmtpd/oobreadlpe msf undefinedoobreadlpe sh...

OpenSMTPd -- LPE and RCE in OpenSMTPD's default install

OpenSMTPD developers reports: An out of bounds read in smtpd allows an attacker to inject arbitrary commands into the envelope file which are then executed as root. Separately, missing privilege revocation in smtpctl allows arbitrary commands to be run with the smtpq group. An unprivileged local...

Exploit for Improper Handling of Exceptional Conditions in Openbsd Opensmtpd

CVE-2020-7247 Proof Of Concept Exploit for CVE...

Exploit for Improper Handling of Exceptional Conditions in Openbsd Opensmtpd

cve-2020-7247 Exploit Title: OpenSMTPD 6.6.2 - Remote Code Exe...

OpenSMTPD Critical LPE / RCE (CVE-2020-7247)

A remote code execution vulnerability exists in OpenSMTPD due to unsanitized email inputs. An unauthenticated, remote attacker can exploit this to bypass authentication and execute arbitrary commands with root privileges. %NASLMINLEVEL 70300 C Tenable Network Security, Inc...

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 6.6.1 - 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

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 6.4.0 < 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...