Path Traversal in Fortinet FortiOS CLI
CVE-2022-41328 is an improper limitation of a pathname to a restricted directory (path traversal) vulnerability in Fortinet FortiOS. A privileged attacker can use crafted CLI commands to escape intended filesystem restrictions and read from or write to arbitrary files on the underlying Linux system. Reported affected versions include all FortiOS 6.0 and 6.2 releases, FortiOS 6.4.0 through 6.4.11, FortiOS 7.0.0 through 7.0.9, and FortiOS 7.2.0 through 7.2.3. Fortinet and subsequent reporting indicate the flaw was exploited in highly targeted attacks, including activity where attackers attempted arbitrary file upload and replacement of system files on FortiGate devices, and in some cases modified firmware components such as /sbin/init and added implants such as /bin/fgfm to obtain persistence and remote access.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability (unspecified in the content) affecting Fortinet FortiOS that is listed as exploited by the threat actor UNC3886/Volt Typhoon.
A Fortinet zero-day vulnerability reportedly leveraged by UNC3886 in 2023 to compromise targets and deploy custom backdoors.
A Fortinet FortiGate firewall vulnerability referenced as a zero-day used by UNC3886 for targeting and intrusion operations.
A local zero-day vulnerability in FortiOS, exploited by UNC3886 to deploy custom malware on Fortinet and VMware systems.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.