Security Affairs

APRIL 16, 2024

Cisco Talos warns of large-scale brute-force attacks against a variety of targets, including VPN services, web application authentication interfaces and SSH services. Pierluigi Paganini Follow me on Twitter: @securityaffairs and Facebook and Mastodon ( SecurityAffairs – hacking, brute-force )

VPN 140

VPN Firewall Authentication Hacking 140

Security Affairs

SEPTEMBER 29, 2021

CISA and the NSA agencies have published guidance for securely using virtual private network (VPN) solutions. Cybersecurity and Infrastructure Security Agency (CISA) and the National Security Agency (NSA) have released guidance for increasing the security of virtual private network (VPN) solutions.

VPN 144

VPN Government Firmware Authentication 144

Security Affairs

DECEMBER 11, 2024

has charged a Chinese national for hacking thousands of Sophos firewall devices worldwide in 2020. has charged the Chinese national Guan Tianfeng (aka gbigmao and gxiaomao) for hacking thousands of Sophos firewall devices worldwide in 2020. Tianfeng worked at Sichuan Silence Information Technology Co., ” The U.S.

Firewall 76

Firewall Hacking Malware Passwords 76

Security Affairs

JANUARY 24, 2025

Lumen’s telemetry shows that roughly 50% of the targeted enterprise devices are configured as a virtual private network (VPN) gateway. Lumen experts also mentioned another variant of cd00r, codenamed SEASPY , that was used in a campaign targeting Barracuda Email Security Gateway (ESG) appliances that dates back in 2022. .

Malware 121

Malware VPN Encryption Hacking 121

Security Affairs

NOVEMBER 3, 2024

The botnet operators are targeting multiple SOHO devices and VPN appliances, including TP-LINK, Zyxel, Asus, D-Link, and Netgear, exploiting both known and previously unknown vulnerabilities. The operators maintain the botnet to launch distributed brute-force attacks on VPNs, Telnet, SSH, and Microsoft 365 accounts.

Passwords 133

Passwords Wireless VPN Accountability 133

Security Affairs

OCTOBER 19, 2024

Attackers accessed targets via VPN gateways lacking multifactor authentication, some of which ran outdated software. In each of the cases, attackers initially accessed targets using compromised VPN gateways without multifactor authentication enabled. Some of these VPNs were running unsupported software versions.”

Backups 130

Backups VPN Ransomware Authentication 130

Security Affairs

AUGUST 4, 2021

Cisco fixed critical, high severity pre-auth security vulnerabilities impacting multiple Small Business VPN routers. Cisco addressed critical and high severity pre-auth security vulnerabilities that impact multiple Small Business VPN routers. SecurityAffairs – hacking, VPN routers). Pierluigi Paganini.

VPN 135

VPN Small Business Hacking Internet 135

Security Affairs

AUGUST 4, 2022

Cisco fixes critical remote code execution vulnerability, tracked as CVE-2022-20842, impacting Small Business VPN routers. Cisco addressed a critical security vulnerability, tracked as CVE-2022-20842, impacting Small Business VPN routers. SecurityAffairs – hacking, Small Business VPN routers). Pierluigi Paganini.

Small Business 138

Small Business VPN Hacking Information Security 138

Security Affairs

OCTOBER 25, 2024

is a Denial of Service (DoS) issue that impacts the Remote Access VPN (RAVPN) service of ASA and FTD. An attacker could exploit this vulnerability by sending a large number of VPN authentication requests to an affected device. Services that are not related to VPN are not affected.” continues the advisory.

VPN 113

VPN Firewall Technology Passwords 113

Security Affairs

MAY 29, 2024

Check Point released hotfixes for a VPN zero-day vulnerability, tracked as CVE-2024-24919, which is actively exploited in attacks in the wild. Check Point released hotfixes to address a VPN zero-day vulnerability, tracked as CVE-2024-24919 , which is actively being exploited in attacks in the wild.

VPN 126

VPN Passwords Authentication Accountability 126

Security Affairs

JUNE 24, 2021

Networking equipment giant Zyxel warns customers of a series of attacks that have been targeting some of its enterprise firewall and VPN devices. Networking equipment vendor Zyxel warned its customers of a series of attacks that have been targeting some of its enterprise firewall and VPN server solutions. Pierluigi Paganini.

VPN 143

VPN Firewall Firmware Authentication 143

Security Affairs

MAY 28, 2021

Researchers from FireEye warn that China-linked APT groups continue to target Pulse Secure VPN devices to compromise networks. In all the intrusions, the attackers targeted Pulse Secure VPN appliances in the breached networks. and Europe.” ” reads the report published by FireEye. and Europe.”

VPN 141

VPN Government Malware Hacking 141

Security Affairs

SEPTEMBER 6, 2023

Experts warn of an Atlas VPN zero-day flaw impacting the Linux client that can reveal the user’s IP address by visiting a website. A Reddit user with the handle ‘Educational-Map-8145’ published a proof of concept exploit for a zero-day flaw in the Linux client of Atlas VPN.

VPN 138

VPN Education Authentication Engineering 138

Security Affairs

AUGUST 22, 2023

The Akira ransomware gang targets Cisco VPN products to gain initial access to corporate networks and steal their data. The Akira ransomware has been active since March 2023, the threat actors behind the malware claim to have already hacked multiple organizations in multiple industries, including education, finance, and real estate.

VPN 98

VPN Ransomware Hacking Education 98

Security Affairs

JANUARY 14, 2025

The campaign likely began in November 2024, the campaign unfolded in four phases: vulnerability scanning (Nov 1623, 2024), reconnaissance (Nov 2227), SSL VPN setup (Dec 47), and lateral movement (Dec 1627). In the next phase (starting Dec 4, 2024), attackers targeted SSL VPN access by creating super admin accounts or hijacking existing ones.

Firewall 82

Firewall VPN Accountability Firmware 82

Security Affairs

JANUARY 1, 2021

Impacted devices include Unified Security Gateway (USG), ATP, USG FLEX and VPN firewalls products. 2020 VPN series running firmware ZLD V4.60 They could also intercept traffic or create VPN accounts to gain access to the network behind the device. SecurityAffairs – hacking, Zyxel). Patch1 in Dec. Patch1 in Dec.

Firewall 145

Firewall VPN Firmware Passwords 145

Security Affairs

JUNE 17, 2021

Iran-linked Ferocious Kitten APT group used instant messaging apps and VPN software like Telegram and Psiphon to deliver Windows RAT and spy on targets’ devices. Experts also spotted a tainted version of the Psiphon tool, an open-source VPN software used to evade internet censorship. SecurityAffairs – hacking, ransomware).

VPN 141

VPN Internet Internet Software 141

Security Affairs

FEBRUARY 1, 2024

Mandiant spotted new malware used by a China-linked threat actor UNC5221 targeting Ivanti Connect Secure VPN and Policy Secure devices. Mandiant researchers discovered new malware employed by a China-linked APT group known as UNC5221 and other threat groups targeting Ivanti Connect Secure VPN and Policy Secure devices.

VPN 136

VPN Malware Authentication Hacking 136

Daniel Miessler

SEPTEMBER 27, 2020

Example 2: Using a VPN. A lot of people are confused about VPNs. They think it’s giving them security that it isn’t because they haven’t properly understood the tech and haven’t considered the attack scenarios. If you log in at the end website you’ve identified yourself to them, regardless of VPN.

VPN 326

VPN Risk Hacking Encryption 326

Security Affairs

OCTOBER 29, 2024

The two infostealers allowed operators to harvest usernames, passwords, contact info, and crypto-wallets from victims, the threat actors sold this data to criminals for financial theft and hacking. Consider extra security layers : Use additional protection like a VPN for safer online activity.

Identity Theft 125

Identity Theft Passwords Malware Banking 125

Security Affairs

NOVEMBER 3, 2024

Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press.

Cryptocurrency 109

Cryptocurrency Hacking Phishing Cyber Attacks 109

Security Affairs

NOVEMBER 21, 2024

The cybercrime group Scattered Spider is suspected of hacking into hundreds of organizations over the past two years, including Twilio , LastPass , DoorDash , and Mailchimp. They impersonated help desk technicians, sent the victims fake VPN deactivation warnings, and used password reset scams to gain access to company systems.

Cybercrime 110

Cybercrime Identity Theft Cryptocurrency Phishing 110

Security Affairs

NOVEMBER 13, 2024

Microsoft first noticed that to conceal malicious traffic, the threat actor routes it through compromised small office and home office (SOHO) network devices, including routers, firewalls, and VPN hardware. ” Follow me on Twitter: @securityaffairs and Facebook and Mastodon Pierluigi Paganini ( SecurityAffairs – hacking, China)

VPN 123

VPN Government Malware Manufacturing 123

Security Affairs

JUNE 19, 2021

North Korea-linked APT group Kimsuky allegedly breached South Korea’s atomic research agency KAERI by exploiting a VPN vulnerability. A KAERI spokesperson revealed that threat actors exploited a vulnerability in a virtual private network (VPN) server to gain access to the network of the institute. ” reported The Record. .”

Hacking 145

Hacking VPN Internet Internet 145

Security Affairs

MARCH 4, 2025

They then connect via VPN from wherever they are physically located (North Korea or across the border in China) and work at night so that it appears as if they are working during the day in the United States. He is also the author of the book La Gestione della Cyber Security nella Pubblica Amministrazione.

Risk 122

Risk Education Scams VPN 122

Security Affairs

SEPTEMBER 8, 2023

CISA warned that nation-state actors are exploiting flaws in Fortinet FortiOS SSL-VPN and Zoho ManageEngine ServiceDesk Plus. Cybersecurity and Infrastructure Security Agency (CISA) warned that nation-state actors are exploiting security vulnerabilities in Fortinet FortiOS SSL-VPN and Zoho ManageEngine ServiceDesk Plus.

VPN 141

VPN Firewall Accountability Cybersecurity 141

Security Affairs

DECEMBER 12, 2022

Fortinet fixed an actively exploited FortiOS SSL-VPN flaw that could allow a remote, unauthenticated attacker to execute arbitrary code on devices. “A heap-based buffer overflow vulnerability [CWE-122] in FortiOS SSL-VPN may allow a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests.”

VPN 115

VPN Hacking Cybersecurity Information Security 115

Security Affairs

FEBRUARY 20, 2025

The Orange Cyberdefense CERT investigated four attackers with a similar initial access vector consisting of thecompromise of a Check Point VPN appliance. The experts believe threat actors exploited the zero-dayCVE-2024-24919 in Check Point Security Gateways with Remote Access VPN or Mobile Access features.

Healthcare 85

Healthcare Ransomware VPN Malware 85

Security Affairs

NOVEMBER 28, 2023

The Daixin Team group claims to have hacked the North Texas Municipal Water District (US) and threatened to leak the stolen data. The Daixin Team group gains initial access to victims through virtual private network (VPN) servers. In another compromise, the group leveraged on compromised credentials to access a legacy VPN server.

Hacking 136

Hacking VPN Ransomware Cybercrime 136

Security Affairs

FEBRUARY 9, 2024

Fortinet warns that the recently discovered critical remote code execution flaw in FortiOS SSL VPN, tracked CVE-2024-21762, is being actively exploited. The vendor recommends to disable SSL VPN as a workaround. “Workaround : disable SSL VPN (disable webmode is NOT a valid workaround). ” reads the advisory.

VPN 132

VPN Firmware Malware Government 132

Security Affairs

JANUARY 16, 2024

Experts warn that recently disclosed Ivanti Connect Secure VPN and Policy Secure vulnerabilities are massively exploited in the wild. Through forensic analysis of the memory sample, Volexity was able to recreate two proof-of-concept exploits that allowed full unauthenticated command execution on the ICS VPN appliance.

VPN 128

VPN Authentication Small Business Telecommunications 128

Security Affairs

JANUARY 31, 2024

Threat actors are exploiting recently disclosed zero-day flaws in Ivanti Connect Secure (ICS) VPN devices to deliver KrustyLoader. ” Sliver is a post-exploitation framework that is gaining notoriety in the hacking underground as an alternative to the Cobalt Strike framework. ” concludes the report.

VPN 128

VPN Malware Authentication Small Business 128

Security Affairs

AUGUST 10, 2022

Upon achieving an MFA push acceptance, the attacker had access to the VPN in the context of the targeted user. “Initial access to the Cisco VPN was achieved via the successful compromise of a Cisco employee’s personal Google account. SecurityAffairs – hacking, Yanluowang ransomware). Pierluigi Paganini.

Ransomware 136

Ransomware Hacking VPN Phishing 136

Security Affairs

NOVEMBER 11, 2021

Palo Alto Networks warns of an easy exploitable Remote Code Execution vulnerability in its GlobalProtect VPN product. 2021-11-10: PAN released patches and a security bulletin assigning the vulnerability CVE-2021-3064. SecurityAffairs – hacking, GlobalProtect VPN ). 2021-11-10: This report was published.

VPN 128

VPN Firewall Internet Internet 128

Security Affairs

NOVEMBER 16, 2024

The advisory pointed out that these IP addresses may be associated with VPN services, for this reason, they are also associated with legitimate user activity. .” The cybersecurity firm observed malicious activities originating from the following IP addresses 136.144.17[.]* 173.239.218[.]251 251 216.73.162[.]*

Firewall 127

Firewall Internet Internet VPN 127

Security Affairs

MARCH 14, 2025

“When the firewall had VPN capabilities, the threat actor created local VPN user accounts with names resembling legitimate accounts but with an added digit at the end. These newly created users were then added to the VPN user group, enabling future logins.” ” reads the report.

Firewall 66

Firewall Ransomware VPN Encryption 66

Security Affairs

DECEMBER 26, 2023

The Rhysida ransomware group claimed to have hacked Abdali Hospital, a multi-specialty hospital located in Jordan. pic.twitter.com/6uHMDcNhTC — Dominic Alvieri (@AlvieriD) December 26, 2023 The group published images of stolen documents as proof of the hack. Abdali Hospital provides care to patients in numerous specialties.

Ransomware 139

Ransomware Hacking Manufacturing Healthcare 139