Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Vulnerabilities / Threats

6/7/2019
04:00 PM
100%
0%

Vulnerability Found in Millions of Email Systems

The vuln could allow remote execution of code with root privilege in more than 4.1 million systems.

Security researchers at Qualys Common discovered a remote command execution vulnerability in older versions of mail transfer agent (MTA) Exim — a critical, open source piece of the email infrastructure in many organizations.

An MTA functions much like a router dedicated to email. Researchers have found more than 4.1 million systems are potentially vulnerable to the flaw.

Exim's maintainers acknowledged the vulnerability (CVE-2019-10149) on June 3. Present in Exim 4.87 through 4.91, the vulnerability could allow an attacker to execute commands as root, with no privilege escalation required.

According to researchers at Tenable, no exploits have been seen in the wild, though they expect at least proof-of-concept exploits to appear in the near future. In the meantime, the vulnerability has been patched, though a Shodan scan executed by Tenable researchers on June 6 showed just 475,591 running updated and patched versions of Exim.

Read more herehere and here

Dark Reading's Quick Hits delivers a brief synopsis and summary of the significance of breaking news events. For more information from the original source of the news item, please follow the link provided in this article. View Full Bio

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
MelBrandle
50%
50%
MelBrandle,
User Rank: Apprentice
6/13/2019 | 2:06:30 AM
We need to improve
We need to really buck up and improve our systems. To know that in today's modern era, we are still witnessing lapses in our email systems. Attackers are getting more advanced by the day but we are simply becoming more vulnerable? This won't do if we wish to stay vigilant to counter any potential cyber attacks.
Christian Bryant
50%
50%
Christian Bryant,
User Rank: Ninja
6/9/2019 | 3:59:57 AM
Dovecot+Exim Still an Issue
Some years ago (2013) RedTeam Pentesting GmbH revealed issues with Dovecot+Exim, but there are likely still systems out there with the Dovecot+Exim configuration as with this 2019 vulnerability.  Information Security is more than network-based, and for the one to be successful systems management teams need also to be on top of their application management procedures and maintenance.  I grew up on FOSS systems and wouldn't have a career without them, but the ease of build and deployment some of these open apps and systems offer is ripe for bad maintenance and configuration.  InfoSec must be harder on the joint management of network and systems and enforce policies for audit, patching and upgrading all software.  A solid configuration management system lends to success in this.

      
7 Truths About BEC Scams
Ericka Chickowski, Contributing Writer,  6/13/2019
DNS Firewalls Could Prevent Billions in Losses to Cybercrime
Curtis Franklin Jr., Senior Editor at Dark Reading,  6/13/2019
Cognitive Bias Can Hamper Security Decisions
Kelly Sheridan, Staff Editor, Dark Reading,  6/10/2019
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
Building and Managing an IT Security Operations Program
As cyber threats grow, many organizations are building security operations centers (SOCs) to improve their defenses. In this Tech Digest you will learn tips on how to get the most out of a SOC in your organization - and what to do if you can't afford to build one.
Flash Poll
The State of IT Operations and Cybersecurity Operations
The State of IT Operations and Cybersecurity Operations
Your enterprise's cyber risk may depend upon the relationship between the IT team and the security team. Heres some insight on what's working and what isn't in the data center.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2013-7472
PUBLISHED: 2019-06-15
The "Count per Day" plugin before 3.2.6 for WordPress allows XSS via the wp-admin/?page=cpd_metaboxes daytoshow parameter.
CVE-2019-12839
PUBLISHED: 2019-06-15
In OrangeHRM 4.3.1 and before, there is an input validation error within admin/listMailConfiguration (txtSendmailPath parameter) that allows authenticated attackers to achieve arbitrary command execution.
CVE-2019-12840
PUBLISHED: 2019-06-15
In Webmin through 1.910, any user authorized to the "Package Updates" module can execute arbitrary commands with root privileges via the data parameter to update.cgi.
CVE-2019-12835
PUBLISHED: 2019-06-15
formats/xml.cpp in Leanify 0.4.3 allows for a controlled out-of-bounds write in xml_memory_writer::write via characters that require escaping.
CVE-2019-12830
PUBLISHED: 2019-06-15
In MyBB before 1.8.21, an attacker can exploit a parsing flaw in the Private Message / Post renderer that leads to [video] BBCode persistent XSS to take over any forum account, aka a nested video MyCode issue.