CVE-2020-12820
Dec. 19, 2024, 11:15 a.m.
Tags
CVSS Score
Product(s) Impacted
FortiOS
- 6.0.10 and below
- 5.6.12 and below
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.
Weaknesses
CWE-121
Stack-based Buffer Overflow
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CWE ID: 121Date
Published: Dec. 19, 2024, 11:15 a.m.
Last Modified: Dec. 19, 2024, 11:15 a.m.
Status : Received
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
psirt@fortinet.com
CVSS Data
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
LOW
Base Score
Exploitability Score
Impact Score
Base Severity
MEDIUMCVSS Vector String
The CVSS vector string provides an in-depth view of the vulnerability metrics.
View Vector StringCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L