Fortinet | Breaking Cybersecurity News | The Hacker News

Threat hunters are calling attention to a new campaign that has targeted Fortinet FortiGate firewall devices with management interfaces exposed on the public internet. "The campaign involved unauthorized administrative logins on management interfaces of firewalls, creation of new accounts, SSL VPN authentication through those accounts, and various other configuration changes," cybersecurity firm Arctic Wolf said in an analysis published last week. The malicious activity is believed to have commenced in mid-November 2024, with unknown threat actors gaining unauthorized access to management interfaces on affected firewalls to alter configurations and extract credentials using DCSync . The exact initial access vector is currently not known, although it has been assessed with "high confidence" that it's likely driven by the exploitation of a zero-day vulnerability given the "compressed timeline across affected organizations as well as firmware versions af...

Cybersecurity researchers have flagged two malicious packages that were uploaded to the Python Package Index (PyPI) repository and came fitted with capabilities to exfiltrate sensitive information from compromised hosts, according to new findings from Fortinet FortiGuard Labs. The packages, named zebo and cometlogger , attracted 118 and 164 downloads each, prior to them being taken down. According to ClickPy statistics, a majority of these downloads came from the United States, China, Russia, and India.  Zebo is a "typical example of malware, with functions designed for surveillance, data exfiltration, and unauthorized control," security researcher Jenna Wang said, adding cometlogger "also shows signs of malicious behavior, including dynamic file manipulation, webhook injection, stealing information, and anti-[virtual machine] checks." The first of the two packages, zebo, uses obfuscation techniques, such as hex-encoded strings, to conceal the URL of the co...

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A now-patched critical security flaw impacting Fortinet FortiClient EMS is being exploited by malicious actors as part of a cyber campaign that installed remote desktop software such as AnyDesk and ScreenConnect.  The vulnerability in question is CVE-2023-48788 (CVSS score: 9.3), an SQL injection bug that allows attackers to execute unauthorized code or commands by sending specially crafted data packets. Russian cybersecurity firm Kaspersky said the October 2024 attack targeted an unnamed company's Windows server that was exposed to the internet and had two open ports associated with FortiClient EMS. "The targeted company employs this technology to allow employees to download specific policies to their corporate devices, granting them secure access to the Fortinet VPN," it said in a Thursday analysis. Further analysis of the incident found that the threat actors took advantage of CVE-2023-48788 as an initial access vector, subsequently dropping a ScreenConnect exe...

Fortinet has issued an advisory for a now-patched critical security flaw impacting Wireless LAN Manager (FortiWLM) that could lead to disclosure of sensitive information. The vulnerability, tracked as CVE-2023-34990, carries a CVSS score of 9.6 out of a maximum of 10.0. It was originally fixed by Fortinet back on August 18, 2023, but without a CVE designation. The list of supported FortiOS versions was updated in early September. "A relative path traversal [CWE-23] in FortiWLM may allow a remote unauthenticated attacker to read sensitive files," the company said in an alert released Wednesday. However, according to a description of the security flaw in the NIST's National Vulnerability Database (NVD), the path traversal vulnerability could also be exploited by an attacker to "execute unauthorized code or commands via specially crafted web requests." The flaw impacts the following versions of the product - FortiWLM versions 8.6.0 through 8.6.5 (Fixed i...

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...

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...

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...

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...

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...

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 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...

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 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 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...

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...

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...

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 ...

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...