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CVE-2020-12820

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CVE-2020-12820

Published: Dec 19, 2024

Modified: Dec 20, 2024

PUBLISHED

CVSS v3.1

5.4

MEDIUM

Description

Under non-default configuration, a stack-based buffer overflow in FortiOS version 6.0.10 and below, version 5.6.12 and below may allow a remote attacker authenticated to the SSL VPN to crash the FortiClient NAC daemon (fcnacd) and potentially execute arbitrary code via requesting a large FortiClient file name. We are not aware of proof of concept code successfully achieving the latter.

VendorProductVersions

Fortinet

FortiOS

affected
6.0.0 - <= 6.0.10
affected
5.6.0 - <= 5.6.12

Weaknesses (CWE)

CWE-121

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:U/RL:X/RC:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low

References

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