2024-10-24 04:37:56 Author: www.tenable.com(查看原文) 阅读量:20 收藏
Frequently asked questions about a zero-day vulnerability in Fortinet’s FortiManager that has reportedly been exploited in the wild.
Background
The Tenable Security Response Team (SRT) has compiled this blog to answer Frequently Asked Questions (FAQ) regarding a zero-day vulnerability in Fortinet’s FortiManager.
Update October 23: The blog has been updated with new information about in-the-wild exploitation and threat actor activity associated with this vulnerability.
FAQ
What is FortiJump?
FortiJump is a name given to a zero-day vulnerability in the FortiGate-FortiManager (FGFM) protocol in Fortinet’s FortiManager and FortiManager Cloud. It was named by security researcher Kevin Beaumont in a blog post on October 22. Beaumont also created a logo for FortiJump.
What are the vulnerabilities associated with FortiJump?
On October 23, Fortinet published an advisory (FG-IR-24-423) for FortiJump, assigning a CVE identifier for the flaw.
| CVE | Description | CVSSv3 |
|---|---|---|
| CVE-2024-47575 | FortiManager Missing authentication in fgfmsd Vulnerability | 9.8 |
What is CVE-2024-47575?
CVE-2024-47575 is a missing authentication vulnerability in the FortiGate to FortiManager (FGFM) daemon (fgfmsd) in FortiManager and FortiManager Cloud.
How severe is CVE-2024-47575?
Exploitation of FortiJump could allow an unauthenticated, remote attacker using a valid FortiGate certificate to register unauthorized devices in FortiManager. Successful exploitation would grant the attacker the ability to view and modify files, such as configuration files, to obtain sensitive information, as well as the ability to manage other devices.
Obtaining a certificate from a FortiGate device is relatively easy:
According to results from Shodan, there are nearly 60,000 FortiManager devices that are internet-facing, including over 13,000 in the United States, over 5,800 in China, nearly 3,000 in Brazil and 2,300 in India:
When was FortiJump first disclosed?
There were reports on Reddit that Fortinet proactively notified customers using FortiManager about the flaw ahead of the release of patches, though some customers say they never received any notifications. Beaumont posted a warning to Mastodon on October 13:
Was this exploited as a zero-day?
Yes, according to both Beaumont and Fortinet, FortiJump has been exploited in the wild as a zero-day. Additionally, Google Mandiant published a blog post on October 23 highlighting its collaborative investigation with Fortinet into the “mass exploitation” of this zero-day vulnerability. According to Google Mandiant, they’ve discovered over 50 plus “potentially compromised FortiManager devices in various industries.”
Which threat actors are exploiting FortiJump?
Google Mandiant attributed exploitation activity to a new threat cluster called UNC5820, adding that the cluster has been observed exploiting the flaw since “as early as June 27, 2024.”
Is there a proof-of-concept (PoC) available for this vulnerability/these vulnerabilities?
As of October 23, there are no public proof-of-concept exploits available for FortiJump.
Are patches or mitigations available for FortiJump?
The following table contains a list of affected products, versions and fixed versions.
| Affected Product | Affected Versions | Fixed Version |
|---|---|---|
| FortiManager 6.2 | 6.2.0 through 6.2.12 | Upgrade to 6.2.13 or above |
| FortiManager 6.4 | 6.4.0 through 6.4.14 | Upgrade to 6.4.15 or above |
| FortiManager 7.0 | 7.0.0 through 7.0.12 | Upgrade to 7.0.13 or above |
| FortiManager 7.2 | 7.2.0 through 7.2.7 | Upgrade to 7.2.8 or above |
| FortiManager 7.4 | 7.4.0 through 7.4.4 | Upgrade to 7.4.5 or above |
| FortiManager 7.6 | 7.6.0 | Upgrade to 7.6.1 or above |
| FortiManager Cloud 6.4 | 6.4 all versions | Migrate to a fixed release |
| FortiManager Cloud 7.0 | 7.0.1 through 7.0.12 | Upgrade to 7.0.13 or above |
| FortiManager Cloud 7.2 | 7.2.1 through 7.2.7 | Upgrade to 7.2.8 or above |
| FortiManager Cloud 7.4 | 7.4.1 through 7.4.4 | Upgrade to 7.4.5 or above |
| FortiManager Cloud 7.6 | Not affected | Not Applicable |
Fortinet’s advisory provides workarounds for specific impacted versions if patching is not feasible. These include blocking unknown devices from attempting to register to FortiManager, creating IP allow lists of approved FortiGate devices that can connect to FortiManager and the creation of custom certificates. Generally speaking, it is advised to ensure FGFM is not internet-facing.
Has Tenable released any product coverage for these vulnerabilities?
A list of Tenable plugins for this vulnerability can be found on the individual CVE page for CVE-2024-47575 as they’re released. This link will display all available plugins for this vulnerability, including upcoming plugins in our Plugins Pipeline.
Get more information
- Burning Zero Days: FortiJump FortiManager vulnerability used by nation state in espionage via MSPs
- FortiGuard Labs PSIRT FG-IR-24-423 Advisory
Change Log
Update October 23: The blog has been updated with new information about in-the-wild exploitation and threat actor activity associated with this vulnerability.
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Satnam Narang
Satnam joined Tenable in 2018. He has over 15 years experience in the industry (M86 Security and Symantec). He contributed to the Anti-Phishing Working Group, helped develop a Social Networking Guide for the National Cyber Security Alliance, uncovered a huge spam botnet on Twitter and was the first to report on spam bots on Tinder. He's appeared on NBC Nightly News, Entertainment Tonight, Bloomberg West, and the Why Oh Why podcast.
Interests outside of work: Satnam writes poetry and makes hip-hop music. He enjoys live music, spending time with his three nieces, football and basketball, Bollywood movies and music and Grogu (Baby Yoda).
Rody Quinlan
Rody Quinlan previously worked at Tenable and in mid 2024 returned as a member of the Security Response Team (SRT). Prior to this he led the Security Operations team at Fenergo, a fintech unicorn, for a number of years delivering a number of functions including incident response, threat intelligence and vulnerability management. He has also worked previously as a Senior Threat & Vulnerability Management Analyst for one of Ireland's pillar banking institutions as well as a security supervisory role in a leading cloud providers data centers for a number of years. He holds and maintains a number of certifications too long to list here but can be found on his LinkedIn and Credly profiles, is an avid learner and usually has at least one course on the go at any given time.
Interests outside of work: Whether he’s holding a recurve or compound bow, Rody enjoys some downtime from screens on the archery range. He also enjoys building props from his favorite films and TV series and is an avid fan of Sir Terry Pratchett's works.
Scott Caveza
Scott joined Tenable in 2012 as a Research Engineer on the Nessus Plugins team. Over the years, he has written hundreds of plugins for Nessus, and reviewed code for even more from his time being a team lead and manager of the Plugins team. Previously leading the Security Response team and the Zero Day Research team, Scott is currently a member of the Security Response team, helping the research organization respond to the latest threats. He has over a decade of experience in the industry with previous work in the Security Operations Center (SOC) for a major domain registrar and web hosting provider. Scott is a current CISSP and actively maintains his GIAC GWAPT Web Application Penetration Tester certification.
Interests outside of work: Scott enjoys spending time with his family, camping, fishing and being outdoors. He also enjoys finding ways to break web applications and home renovation projects.
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