Path Traversal Vulnerability in Fortinet FortiOS and FortiProxy Products
CVE-2018-13379

9.8CRITICAL

Key Information:

Vendor
Fortinet
Vendor
CVE Published:
4 June 2019

Badges

💰 Ransomware👾 Exploit Exists🟡 Public PoC🟣 EPSS 96%🦅 CISA Reported

Summary

An improper limitation of a pathname to a restricted directory exists in Fortinet's FortiOS and FortiProxy products. This flaw, found in versions 6.0.0 through 6.0.4, 5.6.3 through 5.6.7, and 5.4.6 through 5.4.12 for FortiOS, as well as various versions of FortiProxy, allows unauthenticated attackers to exploit the SSL VPN web portal. By crafting specific HTTP resource requests, attackers can gain unauthorized access to system files, posing a significant threat to the integrity and confidentiality of sensitive information.

CISA Reported

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed as being exploited and is known by the CISA as enabling ransomware campaigns.

The CISA's recommendation is: Apply updates per vendor instructions.

Affected Version(s)

Fortinet FortiOS, FortiProxy FortiOS 6.0.0 to 6.0.4, 5.6.3 to 5.6.7 and 5.4.6 to 5.4.12, FortiProxy 2.0.0, 1.2.0 to 1.2.8, 1.1.0 to 1.1.6, 1.0.0 to 1.0.7

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

References

EPSS Score

96% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 💰

    Used in Ransomware

  • 👾

    Exploit known to exist

  • 🦅

    CISA Reported

  • Vulnerability published

  • Vulnerability Reserved

.