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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 attacks are currently available. CVE-20
The Drop in Ransomware Attacks in 2024 and What it Means

The Drop in Ransomware Attacks in 2024 and What it Means

Apr 08, 2024Ransomware / Cybercrime
The  ransomware industry surged in 2023  as it saw an alarming 55.5% increase in victims worldwide, reaching a staggering 5,070.  But 2024 is starting off showing a very different picture.  While the numbers skyrocketed in Q4 2023 with 1309 cases, in Q1 2024, the ransomware industry was down to 1,048 cases. This is a 22% decrease in ransomware attacks compared to Q4 2023. Figure 1: Victims per quarter There could be several reasons for this significant drop.  Reason 1: The Law Enforcement Intervention Firstly, law enforcement has upped the ante in 2024 with actions against both LockBit and ALPHV. The LockBit Arrests In February, an international operation named "Operation Cronos" culminated in the arrest of at least three associates of the infamous LockBit ransomware syndicate in Poland and Ukraine.  Law enforcement from multiple countries collaborated to take down LockBit's infrastructure. This included seizing their dark web domains and gaining access to their backend sys
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
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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 sequence is an injector component tha
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 cri
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 of debuggers a
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 that 153,414
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 additional sophistication b
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 FortiNAC 8.6 all v
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 actors in recent years, it&#
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
Cacti, Realtek, and IBM Aspera Faspex Vulnerabilities Under Active Exploitation

Cacti, Realtek, and IBM Aspera Faspex Vulnerabilities Under Active Exploitation

Apr 01, 2023 Cyber Attack / Vulnerability
Critical security flaws in Cacti, Realtek, and IBM Aspera Faspex are being exploited by various threat actors in hacks targeting unpatched systems. This entails the abuse of  CVE-2022-46169  (CVSS score: 9.8) and  CVE-2021-35394  (CVSS score: 9.8) to deliver  MooBot  and  ShellBot  (aka PerlBot), Fortinet FortiGuard Labs  said  in a report published this week. CVE-2022-46169  relates to a critical authentication bypass and command injection flaw in Cacti servers that allows an unauthenticated user to execute arbitrary code.  CVE-2021-35394  also concerns an arbitrary command injection vulnerability impacting the Realtek Jungle SDK that was patched in 2021. While the latter has been previously exploited to distribute botnets like Mirai, Gafgyt, Mozi, and RedGoBot, the development marks the first time it has been utilized to deploy MooBot, a Mirai variant known to be active since 2019. The Cacti flaw, besides being leveraged for MooBot attacks, has also been observed serving ShellB
Chinese Hackers Exploit Fortinet Zero-Day Flaw for Cyber Espionage Attack

Chinese Hackers Exploit Fortinet Zero-Day Flaw for Cyber Espionage Attack

Mar 18, 2023 Network Security / Cyber Espionage
The zero-day exploitation of a now-patched medium-severity security flaw in the Fortinet  FortiOS  operating system has been linked to a suspected Chinese hacking group. American cybersecurity company Mandiant, which made the attribution, said the activity cluster is part of a broader campaign designed to deploy backdoors onto Fortinet and VMware solutions and maintain persistent access to victim environments. The Google-owned threat intelligence and incident response firm is tracking the malicious operation under its uncategorized moniker UNC3886 , describing it as a China-nexus threat actor. "UNC3886 is an advanced cyber espionage group with unique capabilities in how they operate on-network as well as the tools they utilize in their campaigns," Mandiant researchers  said  in a technical analysis. "UNC3886 has been observed targeting firewall and virtualization technologies which lack EDR support. Their ability to manipulate firewall firmware and exploit a zero-da
Fortinet FortiOS Flaw Exploited in Targeted Cyberattacks on Government Entities

Fortinet FortiOS Flaw Exploited in Targeted Cyberattacks on Government Entities

Mar 14, 2023 Network Security / Cyber Attack
Government entities and large organizations have been targeted by an unknown threat actor by exploiting a security flaw in Fortinet FortiOS software to result in data loss and OS and file corruption. "The complexity of the exploit suggests an advanced actor and that it is highly targeted at governmental or government-related targets," Fortinet researchers Guillaume Lovet and Alex Kong said in an advisory last week. The zero-day flaw in question is CVE-2022-41328 (CVSS score: 6.5), a medium security path traversal bug in FortiOS that could lead to arbitrary code execution. "An improper limitation of a pathname to a restricted directory vulnerability ('path traversal') [CWE-22] in FortiOS may allow a privileged attacker to read and write arbitrary files via crafted CLI commands," the company noted. The shortcoming impacts FortiOS versions 6.0, 6.2, 6.4.0 through 6.4.11, 7.0.0 through 7.0.9, and 7.2.0 through 7.2.3. Fixes are available in versions 6.4.1
New Critical Flaw in FortiOS and FortiProxy Could Give Hackers Remote Access

New Critical Flaw in FortiOS and FortiProxy Could Give Hackers Remote Access

Mar 09, 2023 Network Security / Firewall
Fortinet has released fixes to  address 15 security flaws , including one critical vulnerability impacting FortiOS and FortiProxy that could enable a threat actor to take control of affected systems. The issue, tracked as  CVE-2023-25610 , is rated 9.3 out of 10 for severity and was internally discovered and reported by its security teams. "A buffer underwrite ('buffer underflow') vulnerability in FortiOS and FortiProxy administrative interface may allow a remote unauthenticated attacker to execute arbitrary code on the device and/or perform a DoS on the GUI, via specifically crafted requests," Fortinet  said  in an advisory. Underflow bugs , also called  buffer underruns , occur when the input data is shorter than the reserved space, causing unpredictable behavior or leakage of sensitive data from memory. Other possible consequences include memory corruption that could either be weaponized to induce a crash or execute arbitrary code. Fortinet said it's not
Fortinet Issues Patches for 40 Flaws Affecting FortiWeb, FortiOS, FortiNAC, and FortiProxy

Fortinet Issues Patches for 40 Flaws Affecting FortiWeb, FortiOS, FortiNAC, and FortiProxy

Feb 19, 2023 Network Security / Firewall
Fortinet has released security updates to  address 40 vulnerabilities  in its software lineup, including FortiWeb, FortiOS, FortiNAC, and FortiProxy, among others. Two of the 40 flaws are rated Critical, 15 are rated High, 22 are rated Medium, and one is rated Low in severity. Top of the list is a severe bug residing in the FortiNAC network access control solution (CVE-2022-39952, CVSS score: 9.8) that could lead to arbitrary code execution. "An external control of file name or path vulnerability [CWE-73] in FortiNAC web server may allow an unauthenticated attacker to perform arbitrary write on the system," Fortinet  said  in an advisory earlier this week. The products impacted by the vulnerability are as follows - FortiNAC version 9.4.0 FortiNAC version 9.2.0 through 9.2.5 FortiNAC version 9.1.0 through 9.1.7 FortiNAC 8.8 all versions FortiNAC 8.7 all versions FortiNAC 8.6 all versions FortiNAC 8.5 all versions, and FortiNAC 8.3 all versions Patches have bee
Ukraine Hit with New Golang-based 'SwiftSlicer' Wiper Malware in Latest Cyber Attack

Ukraine Hit with New Golang-based 'SwiftSlicer' Wiper Malware in Latest Cyber Attack

Jan 28, 2023 Cyber Threat / Cyber War
Ukraine has come under a fresh cyber onslaught from Russia that involved the deployment of a previously undocumented Golang-based data wiper dubbed  SwiftSlicer . ESET attributed the attack to Sandworm, a nation-state group linked to Military Unit 74455 of the Main Intelligence Directorate of the General Staff of the Armed Forces of the Russian Federation (GRU). "Once executed it deletes shadow copies, recursively overwrites files located in %CSIDL_SYSTEM%\drivers, %CSIDL_SYSTEM_DRIVE%\Windows\NTDS and other non-system drives and then reboots computer," ESET  disclosed  in a series of tweets. The overwrites are achieved by using randomly generated byte sequences to fill 4,096 byte-length blocks. The intrusion was discovered on January 25, 2023, the Slovak cybersecurity company added. "Attackers deployed the SwiftSlicer wiper using Group Policy of Active Directory," Robert Lipovsky, senior malware researcher for ESET, told The Hacker News. "Once SwiftSlicer
Chinese Hackers Exploited Recent Fortinet Flaw as 0-Day to Drop Malware

Chinese Hackers Exploited Recent Fortinet Flaw as 0-Day to Drop Malware

Jan 20, 2023 Firewall / Network Security
A suspected China-nexus threat actor exploited a recently patched vulnerability in Fortinet FortiOS SSL-VPN as a zero-day in attacks targeting a European government entity and a managed service provider (MSP) located in Africa. Telemetry evidence gathered by Google-owned Mandiant indicates that the exploitation occurred as early as October 2022, at least nearly two months before fixes were released. "This incident continues China's pattern of exploiting internet facing devices, specifically those used for managed security purposes (e.g., firewalls, IPS\IDS appliances etc.)," Mandiant researchers  said  in a technical report. The attacks entailed the use of a sophisticated backdoor dubbed  BOLDMOVE , a Linux variant of which is specifically designed to run on Fortinet's FortiGate firewalls. The intrusion vector in question relates to the exploitation of  CVE-2022-42475 , a heap-based buffer overflow vulnerability in FortiOS SSL-VPN that could result in unauthenti
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