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Category — Fortinet
SmokeLoader Malware Resurfaces, Targeting Manufacturing and IT in Taiwan

SmokeLoader Malware Resurfaces, Targeting Manufacturing and IT in Taiwan

Dec 02, 2024 Malware / Cryptocurrency
Taiwanese entities in manufacturing, healthcare, and information technology sectors have become the target of a new campaign distributing the SmokeLoader malware. "SmokeLoader is well-known for its versatility and advanced evasion techniques, and its modular design allows it to perform a wide range of attacks," Fortinet FortiGuard Labs said in a report shared with The Hacker News. "While SmokeLoader primarily serves as a downloader to deliver other malware, in this case, it carries out the attack itself by downloading plugins from its [command-and-control] server." SmokeLoader , a malware downloader first advertised in cybercrime forums in 2011, is chiefly designed to execute secondary payloads. Additionally, it possesses the capability to download more modules that augment its own functionality to steal data, launch distributed denial-of-service (DDoS) attacks, and mine cryptocurrency. "SmokeLoader detects analysis environments, generates fake network t...
Warning: DEEPDATA Malware Exploiting Unpatched Fortinet Flaw to Steal VPN Credentials

Warning: DEEPDATA Malware Exploiting Unpatched Fortinet Flaw to Steal VPN Credentials

Nov 16, 2024 Vulnerability / VPN Security
A threat actor known as BrazenBamboo has exploited an unresolved security flaw in Fortinet's FortiClient for Windows to extract VPN credentials as part of a modular framework called DEEPDATA . Volexity, which disclosed the findings Friday, said it identified the zero-day exploitation of the credential disclosure vulnerability in July 2024, describing BrazenBamboo as the developer behind DEEPDATA, DEEPPOST, and LightSpy . "DEEPDATA is a modular post-exploitation tool for the Windows operating system that is used to gather a wide range of information from target devices," security researchers Callum Roxan, Charlie Gardner, and Paul Rascagneres said in a technical report. The malware first came to light earlier this week, when BlackBerry detailed the Windows-based surveillance framework as used by the China-linked APT41 threat actor to harvest data from WhatsApp, Telegram, Signal, WeChat, LINE, QQ, Skype, Microsoft Outlook, DingDing, Feishu, KeePass, as well as applic...
Want to Grow Vulnerability Management into Exposure Management? Start Here!

Want to Grow Vulnerability Management into Exposure Management? Start Here!

Dec 05, 2024Attack Surface / Exposure Management
Vulnerability Management (VM) has long been a cornerstone of organizational cybersecurity. Nearly as old as the discipline of cybersecurity itself, it aims to help organizations identify and address potential security issues before they become serious problems. Yet, in recent years, the limitations of this approach have become increasingly evident.  At its core, Vulnerability Management processes remain essential for identifying and addressing weaknesses. But as time marches on and attack avenues evolve, this approach is beginning to show its age. In a recent report, How to Grow Vulnerability Management into Exposure Management (Gartner, How to Grow Vulnerability Management Into Exposure Management, 8 November 2024, Mitchell Schneider Et Al.), we believe Gartner® addresses this point precisely and demonstrates how organizations can – and must – shift from a vulnerability-centric strategy to a broader Exposure Management (EM) framework. We feel it's more than a worthwhile read an...
Cybercriminals Use Excel Exploit to Spread Fileless Remcos RAT Malware

Cybercriminals Use Excel Exploit to Spread Fileless Remcos RAT Malware

Nov 11, 2024 Vulnerability / Network Security
Cybersecurity researchers have discovered a new phishing campaign that spreads a new fileless variant of known commercial malware called Remcos RAT . Remcos RAT "provides purchases with a wide range of advanced features to remotely control computers belonging to the buyer," Fortinet FortiGuard Labs researcher Xiaopeng Zhang said in an analysis published last week. "However, threat actors have abused Remcos to collect sensitive information from victims and remotely control their computers to perform further malicious acts." The starting point of the attack is a phishing email that uses purchase order-themed lures to convince recipients to open a Microsoft Excel attachment. The malicious Excel document is designed to exploit a known remote code execution flaw in Office ( CVE-2017-0199 , CVSS score: 7.8) to download an HTML Application (HTA) file ("cookienetbookinetcahce.hta") from a remote server ("192.3.220[.]22") and launch it using mshta.e...
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Fortinet Warns of Critical Vulnerability in FortiManager Under Active Exploitation

Fortinet Warns of Critical Vulnerability in FortiManager Under Active Exploitation

Oct 24, 2024 Vulnerability / Network Security
Fortinet has confirmed details of a critical security flaw impacting FortiManager that has come under active exploitation in the wild. Tracked as CVE-2024-47575 (CVSS score: 9.8), the vulnerability is also known as FortiJump and is rooted in the FortiGate to FortiManager ( FGFM ) protocol. "A missing authentication for critical function vulnerability [CWE-306] in FortiManager fgfmd daemon may allow a remote unauthenticated attacker to execute arbitrary code or commands via specially crafted requests," the company said in a Wednesday advisory. The shortcoming impacts FortiManager versions 7.x, 6.x, FortiManager Cloud 7.x, and 6.x. It also affects old FortiAnalyzer models 1000E, 1000F, 2000E, 3000E, 3000F, 3000G, 3500E, 3500F, 3500G, 3700F, 3700G, and 3900E that have at least one interface with fgfm service enabled and the below configuration on - config system global set fmg-status enable end Fortinet has also provided three workarounds for the flaw depending on the...
China-Backed Hackers Exploit Fortinet Flaw, Infecting 20,000 Systems Globally

China-Backed Hackers Exploit Fortinet Flaw, Infecting 20,000 Systems Globally

Jun 12, 2024
State-sponsored threat actors backed by China gained access to 20,000 Fortinet FortiGate systems worldwide by exploiting a known critical security flaw between 2022 and 2023, indicating that the operation had a broader impact than previously known. "The state actor behind this campaign was already aware of this vulnerability in FortiGate systems at least two months before Fortinet disclosed the vulnerability," the Dutch National Cyber Security Centre (NCSC) said in a new bulletin. "During this so-called zero-day period, the actor alone infected 14,000 devices." The campaign targeted dozens of Western governments, international organizations, and a large number of companies within the defense industry. The names of the entities were not disclosed. The findings build on an earlier advisory from February 2024, which found that the attackers had breached a computer network used by the Dutch armed forces by exploiting CVE-2022-42475 (CVSS score: 9.8), which allows...
Hackers Exploit Fortinet Flaw, Deploy ScreenConnect, Metasploit in New Campaign

Hackers Exploit Fortinet Flaw, Deploy ScreenConnect, Metasploit in New Campaign

Apr 17, 2024 Vulnerability / Web Application Firewall
Cybersecurity researchers have discovered a new campaign that's exploiting a recently disclosed security flaw in Fortinet FortiClient EMS devices to deliver ScreenConnect and Metasploit Powerfun payloads. The activity entails the exploitation of  CVE-2023-48788  (CVSS score: 9.3), a critical SQL injection flaw that could permit an unauthenticated attacker to execute unauthorized code or commands via specifically crafted requests. Cybersecurity firm Forescout is  tracking  the campaign under the codename  Connect:fun  owing to the use of ScreenConnect and Powerfun for post-exploitation. The intrusion, which targeted an unnamed media company that had its vulnerable FortiClient EMS device exposed to the internet, took place shortly after the  release  of a proof-of-concept (PoC) exploit for the flaw on March 21, 2024. Over the next couple of days, the unknown adversary was observed leveraging the flaw to unsuccessfully download ScreenConnect an...
Fortinet Rolls Out Critical Security Patches for FortiClientLinux Vulnerability

Fortinet Rolls Out Critical Security Patches for FortiClientLinux Vulnerability

Apr 11, 2024 Vulnerability / Threat Mitigation
Fortinet has released patches to address a critical security flaw impacting FortiClientLinux that could be exploited to achieve arbitrary code execution. Tracked as CVE-2023-45590, the vulnerability carries a CVSS score of 9.4 out of a maximum of 10. "An Improper Control of Generation of Code ('Code Injection') vulnerability [CWE-94] in FortiClientLinux may allow an unauthenticated attacker to execute arbitrary code via tricking a FortiClientLinux user into visiting a malicious website," Fortinet  said  in an advisory. The shortcoming, which has been described as a case of remote code execution due to a "dangerous nodejs configuration," impacts the following versions - FortiClientLinux versions 7.0.3 through 7.0.4 and 7.0.6 through 7.0.10 (Upgrade to 7.0.11 or above) FortiClientLinux version 7.2.0 (Upgrade to 7.2.1 or above) Security researcher CataLpa from Dbappsecurity has been credited with discovering and reporting the vulnerability. Fortinet...
CISA Alerts on Active Exploitation of Flaws in Fortinet, Ivanti, and Nice Products

CISA Alerts on Active Exploitation of Flaws in Fortinet, Ivanti, and Nice Products

Mar 26, 2024 Cyber Attack / Vulnerability
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday  placed  three security flaws to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation. The vulnerabilities added are as follows - CVE-2023-48788  (CVSS score: 9.3) - Fortinet FortiClient EMS SQL Injection Vulnerability CVE-2021-44529  (CVSS score: 9.8) - Ivanti Endpoint Manager Cloud Service Appliance (EPM CSA) Code Injection Vulnerability CVE-2019-7256  (CVSS score: 10.0) - Nice Linear eMerge E3-Series OS Command Injection Vulnerability The shortcoming impacting Fortinet FortiClient EMS  came to light  earlier this month, with the company describing it as a flaw that could allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted requests. Fortinet has since revised its advisory to confirm that it has been exploited in the wild, although no other details regarding the nature of the attack...
Fortinet Warns of Critical FortiOS SSL VPN Flaw Likely Under Active Exploitation

Fortinet Warns of Critical FortiOS SSL VPN Flaw Likely Under Active Exploitation

Feb 09, 2024 Zero Day Vulnerability / Network Security
Fortinet has disclosed a new critical security flaw in FortiOS SSL VPN that it said is likely being exploited in the wild. The vulnerability,  CVE-2024-21762  (CVSS score: 9.6), allows for the execution of arbitrary code and commands. "An out-of-bounds write vulnerability [CWE-787] in FortiOS may allow a remote unauthenticated attacker to execute arbitrary code or command via specially crafted HTTP requests," the company  said  in a bulletin released Thursday. It further acknowledged that the issue is "potentially being exploited in the wild," without giving additional specifics about how it's being weaponized and by whom. The following versions are impacted by the vulnerability. It's worth noting that FortiOS 7.6 is not affected. FortiOS 7.4 (versions 7.4.0 through 7.4.2) - Upgrade to 7.4.3 or above FortiOS 7.2 (versions 7.2.0 through 7.2.6) - Upgrade to 7.2.7 or above FortiOS 7.0 (versions 7.0.0 through 7.0.13) - Upgrade to 7.0.14 or above Forti...
Chinese Hackers Exploited FortiGate Flaw to Breach Dutch Military Network

Chinese Hackers Exploited FortiGate Flaw to Breach Dutch Military Network

Feb 07, 2024 Cyber Espionage / Network Security
Chinese state-backed hackers broke into a computer network that's used by the Dutch armed forces by targeting Fortinet FortiGate devices. "This [computer network] was used for unclassified research and development (R&D)," the Dutch Military Intelligence and Security Service (MIVD)  said  in a statement. "Because this system was self-contained, it did not lead to any damage to the defense network." The network had less than 50 users. The intrusion, which took place in 2023, leveraged a known critical security flaw in FortiOS SSL-VPN ( CVE-2022-42475 , CVSS score: 9.3) that allows an unauthenticated attacker to execute arbitrary code via specially crafted requests. Successful exploitation of the flaw paved the way for the deployment of a backdoor dubbed  COATHANGER  from an actor-controlled server that's designed to grant persistent remote access to the compromised appliances. "The COATHANGER malware is stealthy and persistent," the Dutch N...
New Bandook RAT Variant Resurfaces, Targeting Windows Machines

New Bandook RAT Variant Resurfaces, Targeting Windows Machines

Jan 05, 2024 Malware / Cyber Espionage
A new variant of a remote access trojan called  Bandook  has been observed being propagated via phishing attacks with an aim to infiltrate Windows machines, underscoring the continuous evolution of the malware. Fortinet FortiGuard Labs, which identified the activity in October 2023, said the malware is distributed via a PDF file that embeds a link to a password-protected .7z archive. "After the victim extracts the malware with the password in the PDF file, the malware injects its payload into msinfo32.exe," security researcher Pei Han Liao  said . Bandook, first detected in 2007, is an  off-the-shelf malware  that comes with a wide range of features to remotely gain control of the infected systems. In July 2021, Slovak cybersecurity firm ESET  detailed  a cyber espionage campaign that leveraged an upgraded variant of Bandook to breach corporate networks in Spanish-speaking countries such as Venezuela. The starting point of the latest attack seq...
Major Cybersecurity Agencies Collaborate to Unveil 2022's Most Exploited Vulnerabilities

Major Cybersecurity Agencies Collaborate to Unveil 2022's Most Exploited Vulnerabilities

Aug 04, 2023 Software Security / Cyber Theat
A four-year-old critical security flaw impacting Fortinet FortiOS SSL has emerged as one of the most routinely and frequently exploited vulnerabilities in 2022. "In 2022, malicious cyber actors exploited older software vulnerabilities more frequently than recently disclosed vulnerabilities and targeted unpatched, internet-facing systems," cybersecurity and intelligence agencies from the Five Eyes nations, which comprises Australia, Canada, New Zealand, the U.K., and the U.S.,  said  in a joint alert. The continued weaponization of  CVE-2018-13379 , which was also one among the most exploited bugs in  2020  and  2021 , suggests a failure on the part of organizations to apply patches in a timely manner, the authorities said. "Malicious cyber actors likely prioritize developing exploits for severe and globally prevalent CVEs," according to the advisory. "While sophisticated actors also develop tools to exploit other vulnerabilities, developing exploits for...
Cybercriminals Exploit Microsoft Word Vulnerabilities to Deploy LokiBot Malware

Cybercriminals Exploit Microsoft Word Vulnerabilities to Deploy LokiBot Malware

Jul 17, 2023 Malware / Cyber Threat
Microsoft Word documents exploiting known remote code execution flaws are being used as phishing lures to drop malware called  LokiBot  on compromised systems. "LokiBot, also known as Loki PWS, has been a well-known information-stealing Trojan active since 2015," Fortinet FortiGuard Labs researcher Cara Lin  said . "It primarily targets Windows systems and aims to gather sensitive information from infected machines." The cybersecurity company, which spotted the campaign in May 2023, said the attacks take advantage of  CVE-2021-40444  and  CVE-2022-30190  (aka Follina) to achieve code execution. The Word file that weaponizes CVE-2021-40444 contains an external GoFile link embedded within an XML file that leads to the download of an HTML file, which exploits Follina to download a next-stage payload, an injector module written in Visual Basic that decrypts and launches LokiBot. The injector also features evasion techniques to check for the presence ...
Alert: 330,000 FortiGate Firewalls Still Unpatched to CVE-2023-27997 RCE Flaw

Alert: 330,000 FortiGate Firewalls Still Unpatched to CVE-2023-27997 RCE Flaw

Jul 04, 2023 Network Security / Exploit
No less than 330,000 FortiGate firewalls are still unpatched and vulnerable to CVE-2023-27997, a critical security flaw affecting Fortinet devices that has come under active exploitation in the wild. Cybersecurity firm Bishop Fox, in a  report  published last week, said that out of nearly 490,000 Fortinet SSL-VPN interfaces exposed on the internet, about 69 percent remain unpatched. CVE-2023-27997  (CVSS score: 9.8), also called XORtigate, is a critical vulnerability impacting Fortinet FortiOS and FortiProxy SSL-VPN appliances that could allow a remote attacker to execute arbitrary code or commands via specifically crafted requests. Patches were released by Fortinet last month in versions 6.0.17, 6.2.15, 6.4.13, 7.0.12, and 7.2.5, although the company  acknowledged  that the flaw may have been "exploited in a limited number of cases" in attacks targeting government, manufacturing, and critical infrastructure sectors. Bishop Fox's analysis further found th...
Fluhorse: Flutter-Based Android Malware Targets Credit Cards and 2FA Codes

Fluhorse: Flutter-Based Android Malware Targets Credit Cards and 2FA Codes

Jun 29, 2023 Mobile Security / Malware
Cybersecurity researchers have shared the inner workings of an Android malware family called  Fluhorse . The malware "represents a significant shift as it incorporates the malicious components directly within the Flutter code," Fortinet FortiGuard Labs researcher Axelle Apvrille  said  in a report published last week. Fluhorse was  first documented  by Check Point in early May 2023, detailing its attacks on users located in East Asia through rogue apps masquerading as ETC and VPBank Neo, which are popular in Taiwan and Vietnam. The initial intrusion vector for the malware is phishing. The ultimate goal of the app is to steal credentials, credit card details, and two-factor authentication (2FA) codes received as SMS to a remote server under the control of the threat actors. The latest findings from Fortinet, which reverse-engineered a  Fluhorse sample  uploaded to VirusTotal on June 11, 2023, suggest that the malware has evolved, incorporating add...
New Fortinet's FortiNAC Vulnerability Exposes Networks to Code Execution Attacks

New Fortinet's FortiNAC Vulnerability Exposes Networks to Code Execution Attacks

Jun 27, 2023 Vulnerability / Exploit
Fortinet has rolled out updates to address a critical security vulnerability impacting its FortiNAC network access control solution that could lead to the execution of arbitrary code. Tracked as  CVE-2023-33299 , the flaw is rated 9.6 out of 10 for severity on the CVSS scoring system. It has been described as a case of Java untrusted object deserialization. "A  deserialization  of untrusted data vulnerability [ CWE-502 ] in FortiNAC may allow an unauthenticated user to execute unauthorized code or commands via specifically crafted requests to the tcp/1050 service," Fortinet  said  in an advisory published last week. The shortcoming impacts the following products, with patches available in FortiNAC versions 7.2.2, 9.1.10, 9.2.8, and 9.4.3 or later - FortiNAC version 9.4.0 through 9.4.2 FortiNAC version 9.2.0 through 9.2.7 FortiNAC version 9.1.0 through 9.1.9 FortiNAC version 7.2.0 through 7.2.1 FortiNAC 8.8 all versions FortiNAC 8.7 all versions Fort...
Critical RCE Flaw Discovered in Fortinet FortiGate Firewalls - Patch Now!

Critical RCE Flaw Discovered in Fortinet FortiGate Firewalls - Patch Now!

Jun 12, 2023 Vulnerability / Network Security
Fortinet has released patches to address a critical security flaw in its FortiGate firewalls that could be abused by a threat actor to achieve remote code execution. The vulnerability, tracked as  CVE-2023-27997 , is "reachable pre-authentication, on every SSL VPN appliance," Lexfo Security researcher Charles Fol, who discovered and reported the flaw alongside Dany Bach,  said  in a tweet over the weekend. Details about the security flaw are currently withheld and Fortinet is yet to release an advisory, although the network security company is expected to publish more details in the coming days. French cybersecurity company Olympe Cyberdefense, in an independent alert,  said  the issue has been patched in versions 6.2.15, 6.4.13, 7.0.12, and 7.2.5. "The flaw would allow a hostile agent to interfere via the VPN, even if the MFA is activated," the firm noted. With Fortinet flaws  emerging  as a  lucrative   attack vector  for threat...
Hackers Exploiting 5-year-old Unpatched Vulnerability in TBK DVR Devices

Hackers Exploiting 5-year-old Unpatched Vulnerability in TBK DVR Devices

May 03, 2023 Surveillance / Vulnerability
Threat actors are actively exploiting an unpatched five-year-old flaw impacting TBK digital video recording (DVR) devices, according to an advisory issued by Fortinet FortiGuard Labs. The vulnerability in question is  CVE-2018-9995  (CVSS score: 9.8), a critical authentication bypass issue that could be exploited by remote actors to gain elevated permissions. "The 5-year-old vulnerability (CVE-2018-9995) is due to an error when handling a maliciously crafted HTTP cookie," Fortinet  said  in an outbreak alert on May 1, 2023. "A remote attacker may be able to exploit this flaw to bypass authentication and obtain administrative privileges eventually leading access to camera video feeds." The network security company said it observed over 50,000 attempts to exploit TBK DVR devices using the flaw in the month of April 2023. Despite the availability of a proof-of-concept ( PoC ) exploit, there are no fixes that address the vulnerability. The flaw impacts TBK DVR4104...
New All-in-One "EvilExtractor" Stealer for Windows Systems Surfaces on the Dark Web

New All-in-One "EvilExtractor" Stealer for Windows Systems Surfaces on the Dark Web

Apr 24, 2023 Cyber Risk / Dark Web
A new "all-in-one" stealer malware named  EvilExtractor  (also spelled Evil Extractor) is being marketed for sale for other threat actors to steal data and files from Windows systems. "It includes several modules that all work via an FTP service," Fortinet FortiGuard Labs researcher Cara Lin  said . "It also contains environment checking and Anti-VM functions. Its primary purpose seems to be to steal browser data and information from compromised endpoints and then upload it to the attacker's FTP server." The network security company said it observed a surge in attacks spreading the malware in the wild in March 2023, with a majority of the victims located in Europe and the U.S. While marketed as an educational tool, EvilExtractor has been adopted by threat actors for use as an information stealer. The attack tool is being sold by an actor named Kodex on cybercrime forums like Cracked dating back to October 22, 2022. It's continually updated and ...
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