Tag Archives: Fortinet

About Authentication Bypass – FortiOS (CVE-2024-55591) vulnerability

About Authentication Bypass - FortiOS (CVE-2024-55591) vulnerability

About Authentication Bypass – FortiOS (CVE-2024-55591) vulnerability. A critical flaw allows remote attackers to gain super-admin privileges via crafted requests to the Node.js websocket module. Affected systems include Fortinet devices running FortiOS (e.g., FortiGate NGFW) and FortiProxy.

🔹 On January 10, Arctic Wolf reported attacks on Fortinet devices that began in November 2024. Attackers create accounts with random names, modify device settings, and gain access to internal systems.

🔹 The vendor advisory was published on January 14. The vulnerability was added to the CISA KEV.

🔹 A public exploit has been available on GitHub since January 21.

🔹 As of January 26, Shadow Server reports around 45,000 vulnerable devices accessible from the Internet.

The vendor recommends updating FortiOS and FortiProxy to secure versions and restricting or disabling administrative HTTP/HTTPS interfaces.

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I have finalized the list of trending vulnerabilities for 2024 according to Positive Technologies

I have finalized the list of trending vulnerabilities for 2024 according to Positive Technologies

I have finalized the list of trending vulnerabilities for 2024 according to Positive Technologies. Last year, 74 vulnerabilities were classified as trending (to compare the scale, just over 40,000 were added to NVD in 2024).

All trending vulnerabilities are found in Western commercial products and open source projects. This year, the vulnerabilities of domestic Russian products did not reach the level of criticality required to classify them as trending.

For 55 of all trending vulnerabilities there are currently signs of exploitation in attacks, for 17 there are public exploits (but no signs of exploitation) and for the remaining 2 there is only a possibility of future exploitation.

Vulnerabilities were often added to trending ones before signs of exploitation in the wild appeared. For example, the remote code execution vulnerability in VMware vCenter (CVE-2024-38812) was added to the list of trending vulnerabilities on September 20, 3 days after the vendor’s security bulletin appeared. There were no signs of exploitation in the wild or public exploit for this vulnerability. Signs of exploitation appeared only 2 months later, on November 18.

Most of the vulnerabilities in the trending list are of the following types: Remote Code or Command Execution (24) and Elevation of Privilege (21).

4 vulnerabilities in Barracuda Email Security Gateway (CVE-2023-2868), MOVEit Transfer (CVE-2023-34362), papercut (CVE-2023-27350) and SugarCRM (CVE-2023-22952) were added in early January 2024. These vulnerabilities were massively exploited in the West in 2023, and attacks using these vulnerabilities could also tangentially affect those domestic Russian organizations where these products had not yet been taken out of service. The rest of the vulnerabilities became trending in 2024.

34 trending vulnerabilities affect Microsoft products (45%).

🔹 17 of them are Elevation of Privilege vulnerabilities in the Windows kernel and standard components.

🔹 1 Remote Code Execution vulnerability in Windows Remote Desktop Licensing Service (CVE-2024-38077).

2 trending Elevation of Privilege vulnerabilities affect Linux systems: one in nftables (CVE-2024-1086), and the second in needrestart (CVE-2024-48990).

Other groups of vulnerabilities

🔻 Phishing attacks: 19 (Windows components, Outlook, Exchange, Ghostscript, Roundcube)
🔻 Network security and entry points: 13 (Palo Alto, Fortinet, Juniper, Ivanti, Check Point, Zyxel)
🔻 Virtual infrastructure and backups: 7 (VMware, Veeam, Acronis)
🔻 Software development: 6 (GitLab, TeamCity, Jenkins, PHP, Fluent Bit, Apache Struts)
🔻 Collaboration tools: 3 (Atlassian Confluence, XWiki)
🔻 CMS WordPress plugins: 3 (LiteSpeed Cache, The Events Calendar, Hunk Companion)

🗒 Full Vulristics report

🟥 Article on the official website “Vulnerable software and hardware vs. security researchers” (rus)

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New episode “In The Trend of VM” (#10): 8 trending vulnerabilities of November, zero budget VM and who should look for patches

New episode “In The Trend of VM” (#10): 8 trending vulnerabilities of November, zero budget VM and who should look for patches. The competition for the best question on the topic of VM continues. 😉🎁

📹 Video on YouTube, LinkedIn
🗞 Post on Habr (rus)
🗒 Digest on the PT website

Content:

🔻 00:29 Spoofing – Windows NTLM (CVE-2024-43451)
🔻 01:16 Elevation of Privilege – Windows Task Scheduler (CVE-2024-49039)
🔻 02:16 Spoofing – Microsoft Exchange (CVE-2024-49040)
🔻 03:03 Elevation of Privilege – needrestart (CVE-2024-48990)
🔻 04:11 Remote Code Execution – FortiManager “FortiJump” (CVE-2024-47575)
🔻 05:19 Authentication Bypass – PAN-OS (CVE-2024-0012)
🔻 06:32 Elevation of Privilege – PAN-OS (CVE-2024-9474)
🔻 07:42 Path Traversal – Zyxel firewall (CVE-2024-11667)
🔻 08:37 Is it possible to Manage Vulnerabilities with no budget?
🔻 09:53 Should a VM specialist specify a patch to install on the host in a Vulnerability Remediation task?
🔻 10:51 Full digest of trending vulnerabilities
🔻 11:18 Backstage

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About Remote Code Execution – FortiManager “FortiJump” (CVE-2024-47575) vulnerability

About Remote Code Execution - FortiManager FortiJump (CVE-2024-47575) vulnerability

About Remote Code Execution – FortiManager “FortiJump” (CVE-2024-47575) vulnerability. FortiManager is a centralized solution for configuring, enforcing policies, updating, and monitoring Fortinet network devices.

🔻 The vulnerability was released on October 23. A missing authentication for critical function in the FortiManager fgfmd (FortiGate-to-FortiManager) daemon allows remote attacker to execute arbitrary code or commands via specially crafted requests. There were signs of exploitation in the wild and the vulnerability was added to the CISA KEV.

🔻 On November 15, WatchTowr Labs published a post about this “FortiJump” vulnerability with a video demo and a link to the PoC. The researchers noted that the IOCs in the Fortinet bulletin can be bypassed. And the patch itself is incomplete. It is possible to escalate privileges on a patched device by exploiting a vulnerability called “FortiJump Higher”.

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The digest of March trending vulnerabilities was published on the Positive Technologies website (in Russian)

The digest of March trending vulnerabilities was published on the Positive Technologies website (in Russian)The digest of March trending vulnerabilities was published on the Positive Technologies website (in Russian)The digest of March trending vulnerabilities was published on the Positive Technologies website (in Russian)The digest of March trending vulnerabilities was published on the Positive Technologies website (in Russian)The digest of March trending vulnerabilities was published on the Positive Technologies website (in Russian)

The digest of March trending vulnerabilities was published on the Positive Technologies website (in Russian). I also generated a Vulristics report for these vulnerabilities. There are 5 vulnerabilities in total.

🔻 For 3 vulnerabilities there are exploits and confirmed signs of exploitation in the wild: AuthBypassTeamCity (CVE-2024-27198), RCE – FortiClientEMS (CVE-2023-48788), EoPWindows Kernel (CVE-2024-21338).

🔻 For 2 more vulnerabilities there are no signs of exploitation in the wild yet, but there are exploits: EoP – Windows CLFS Driver (CVE-2023-36424), RCEMicrosoft Outlook (CVE-2024-21378).

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Recently there was news about an RCE vulnerability in FortiOS and FortiProxy (CVE-2023-42789)

Recently there was news about an RCE vulnerability in FortiOS and FortiProxy (CVE-2023-42789)
Recently there was news about an RCE vulnerability in FortiOS and FortiProxy (CVE-2023-42789)Recently there was news about an RCE vulnerability in FortiOS and FortiProxy (CVE-2023-42789)

Recently there was news about an RCE vulnerability in FortiOS and FortiProxy (CVE-2023-42789). It “allows attacker to execute unauthorized code or commands via specially crafted HTTP requests”. The vulnerability is exploited in the captive portal, which, in theory, should not be accessible from the Internet. This is why the Fortinet bulletin warns about an “inside attacker”.

There is a repository on GitHub that allegedly contains a PoC, but its reliability is questionable. The code only implements checking the availability of the captive portal; there is no payload there. The repository was created by a user without any reputation or previous activity. He sells the full exploit code for ~$262. It looks like a scam, but if suddenly this is a truly functional exploit, then it is likely that it will quickly leak to the public.

In any case, it is worth updating or getting rid of this solution.

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I reach a wider audience: I talk about trending vulnerabilities in the SecLab News show

I reach a wider audience: I talk about trending vulnerabilities in the SecLab News show. 🤩 It’s in Russian, but the automatically generated subtitles combined with automatic translation do a good job. The “Trending VM” section starts at 16:05. 🎞

As for the content, this is the February digest of trending vulnerabilities, but presented in a more lively format: simple phrases, with all sorts of memes, jokes and so on. Typical edutainment. 😏 The level of production demonstrated by the SecLab News team is, of course, amazing. I haven’t seen anything better yet. Very professional guys, it’s a pleasure to work with them. 🔥

In general, this is a trial attempt – the further fate of the section (and maybe not only the section) depends on you 😉.

➡️ Please follow the link, watch the episode, like it, leave a comment about the section. What you liked and what could have been done better.

We are really looking forward to your feedback. 🫠

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