Fortianalyzer
CVE-2021-24022
MEDIUM
Severity by source
AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
1DescriptionNVD
A buffer overflow vulnerability in FortiAnalyzer CLI 6.4.5 and below, 6.2.7 and below, 6.0.x and FortiManager CLI 6.4.5 and below, 6.2.7 and below, 6.0.x may allow an authenticated, local attacker to perform a Denial of Service attack by running the diagnose system geoip-city command with a large ip value.
AnalysisAI
A buffer overflow vulnerability in FortiAnalyzer CLI 6.4.5 and below, 6.2.7 and below, 6.0.x and FortiManager CLI 6.4.5 and below, 6.2.7 and below, 6.0.x may allow an authenticated, local attacker to. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. A buffer overflow vulnerability in FortiAnalyzer CLI 6.4.5 and below, 6.2.7 and below, 6.0.x and FortiManager CLI 6.4.5 and below, 6.2.7 and below, 6.0.x may allow an authenticated, local attacker to perform a Denial of Service attack by running the diagnose system geoip-city command with a large ip value. Affected products include: Fortinet Fortianalyzer, Fortinet Fortimanager.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.
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External POC / Exploit Code
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