• Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
MUST READ

Microsoft linked attacks on SharePoint flaws to China-nexus actors

 | 

Cisco confirms active exploitation of ISE and ISE-PIC flaws

 | 

SharePoint under fire: new ToolShell attacks target enterprises

 | 

CrushFTP zero-day actively exploited at least since July 18

 | 

Hardcoded credentials found in HPE Aruba Instant On Wi-Fi devices

 | 

MuddyWater deploys new DCHSpy variants amid Iran-Israel conflict

 | 

U.S. CISA urges to immediately patch Microsoft SharePoint flaw adding it to its Known Exploited Vulnerabilities catalog

 | 

Microsoft issues emergency patches for SharePoint zero-days exploited in "ToolShell" attacks

 | 

SharePoint zero-day CVE-2025-53770 actively exploited in the wild

 | 

Singapore warns China-linked group UNC3886 targets its critical infrastructure

 | 

U.S. CISA adds Fortinet FortiWeb flaw to its Known Exploited Vulnerabilities catalog

 | 

SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 54

 | 

Security Affairs newsletter Round 533 by Pierluigi Paganini – INTERNATIONAL EDITION

 | 

Radiology Associates of Richmond data breach impacts 1.4 million people

 | 

Fortinet FortiWeb flaw CVE-2025-25257 exploited hours after PoC release

 | 

Authorities released free decryptor for Phobos and 8base ransomware

 | 

Anne Arundel Dermatology data breach impacts 1.9 million people

 | 

LameHug: first AI-Powered malware linked to Russia’s APT28

 | 

5 Features Every AI-Powered SOC Platform Needs in 2025

 | 

Broadcom patches critical VMware flaws exploited at Pwn2Own Berlin 2025

 | 
  • Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
  • Home
  • Breaking News
  • Hacking
  • Security
  • Attackers exploit SimpleHelp RMM Software flaws for initial access

Attackers exploit SimpleHelp RMM Software flaws for initial access

Pierluigi Paganini January 29, 2025

Threat actors exploit recently fixed SimpleHelp RMM software vulnerabilities to breach targeted networks, experts warn.

Horizon3 researchers discovered three vulnerabilities, tracked as CVE-2024-57726, CVE-2024-57727, and CVE-2024-57728, that could be used to compromise a SimpleHelp server, as well as clients machines being managed by SimpleHelp.

The first vulnerability, CVE-2024-57727 (CVSS score of 7.5), is an unauthenticated path traversal issue allowing attackers to download arbitrary files from the server. This includes sensitive data like the serverconfig.xml file, which contains hashed admin and technician passwords, LDAP credentials, and other secrets, all encrypted with a hardcoded key. The second bug, tracked as CVE-2024-57728 (CVSS score of 7.2), enables arbitrary file uploads, leading to remote code execution if attackers gain admin credentials. For Linux, this allows remote command execution via crontab uploads; for Windows, it enables executable overwrites. The third, CVE-2024-57726 (CVSS score of 7.2), allows privilege escalation, letting a low-privilege technician elevate to admin by exploiting missing backend authorization checks. This grants access to customer machines and makes the server vulnerable to further exploits.

On Jan. 6, 2025: Horizon3.I reported the issue to SimpleHelp, which released patch version 5.3.9 on Jan. 13, 2025.

Researchers from security firm Arctic Wolf now report that an ongoing campaign is targeting SimpleHelp servers. According to the experts, the attacks are allegedly exploiting the above vulnerabilities and began a week after their public disclosure.

Attackers could download files, upload files with admin privileges, and escalate their access to an administrative level on vulnerable servers.

“On 22 January 2025, Arctic Wolf began observing a campaign involving unauthorised access to devices running SimpleHelp RMM software as an initial access vector. Roughly a week prior to the emergence of this campaign, several vulnerabilities had been publicly disclosed in SimpleHelp by Horizon3 (CVE-2024-57726, CVE-2024-57727, and CVE-2024-57728).” reads the report published by Artic Wolf. “If a threat actor chains these vulnerabilities together and gains administrative access to a SimpleHelp server, they could theoretically use it to compromise devices running the SimpleHelp client software.”

According to Arctic Wolf, SimpleHelp’s Remote Access.exe was running before the compromise, likely from a past support session. The first sign of intrusion was communication with an unapproved SimpleHelp server. Attackers attempted to gather account and domain details via cmd.exe using tools like net and nltest but failed to act further as the session was terminated early.

To minimize risks, the experts recommend uninstalling unused SimpleHelp client software from past support sessions, rotating passwords for admin and technician accounts, and restricting IP logins on SimpleHelp servers.

The Shadowserver Foundation reported they have seen 580 vulnerable instances exposed online, mainly in the United States and UK.

For the last few days we are sharing SimpleHelp CVE-2024-57727 (path traversal vulnerability) instances in our Vulnerable HTTP report: https://t.co/qxv0Gv6cAK

For patch info from SimpleHelp please see https://t.co/8PUpXgrtId

We see around 580 vulnerable https://t.co/0ldmvTbxzI pic.twitter.com/hMA88hc6rW

— The Shadowserver Foundation (@Shadowserver) January 27, 2025

Follow me on Twitter: @securityaffairs and Facebook and Mastodon

Pierluigi Paganini

(SecurityAffairs – hacking, SimpleHelp RMM)


facebook linkedin twitter

Hacking hacking news information security news IT Information Security Pierluigi Paganini Security Affairs Security News SimpleHelp RMM

you might also like

Pierluigi Paganini July 23, 2025
Microsoft linked attacks on SharePoint flaws to China-nexus actors
Read more
Pierluigi Paganini July 22, 2025
Cisco confirms active exploitation of ISE and ISE-PIC flaws
Read more

leave a comment

newsletter

Subscribe to my email list and stay
up-to-date!

    recent articles

    Microsoft linked attacks on SharePoint flaws to China-nexus actors

    APT / July 23, 2025

    Cisco confirms active exploitation of ISE and ISE-PIC flaws

    Hacking / July 22, 2025

    SharePoint under fire: new ToolShell attacks target enterprises

    Hacking / July 22, 2025

    CrushFTP zero-day actively exploited at least since July 18

    Hacking / July 22, 2025

    Hardcoded credentials found in HPE Aruba Instant On Wi-Fi devices

    Security / July 22, 2025

    To contact me write an email to:

    Pierluigi Paganini :
    pierluigi.paganini@securityaffairs.co

    LEARN MORE

    QUICK LINKS

    • Home
    • Cyber Crime
    • Cyber warfare
    • APT
    • Data Breach
    • Deep Web
    • Digital ID
    • Hacking
    • Hacktivism
    • Intelligence
    • Internet of Things
    • Laws and regulations
    • Malware
    • Mobile
    • Reports
    • Security
    • Social Networks
    • Terrorism
    • ICS-SCADA
    • POLICIES
    • Contact me

    Copyright@securityaffairs 2024

    We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
    Cookie SettingsAccept All
    Manage consent

    Privacy Overview

    This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities...
    Necessary
    Always Enabled
    Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
    Non-necessary
    Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
    SAVE & ACCEPT