Medium severity · published Jul 18, 2023
CVE-2021-43072
A buffer copy without checking size of input ('classic buffer overflow') in Fortinet FortiAnalyzer version 7.0.2 and below, version 6.4.7 and below, version 6.2.9 and below,…
6.7
CVSS
0.2%
EPSS
No
On KEV
Description
A buffer copy without checking size of input ('classic buffer overflow') in Fortinet FortiAnalyzer version 7.0.2 and below, version 6.4.7 and below, version 6.2.9 and below, version 6.0.11 and below, version 5.6.11 and below, FortiManager version 7.0.2 and below, version 6.4.7 and below, version 6.2.9 and below, version 6.0.11 and below, version 5.6.11 and below, FortiOS version 7.0.0 through 7.0.4, 6.4.0 through 6.4.8, 6.2.0 through 6.2.10, 6.0.x and FortiProxy version 7.0.0 through 7.0.3, 2.0.0 through 2.0.8, 1.2.x, 1.1.x and 1.0.x allows attacker to execute unauthorized code or commands via crafted CLI `execute restore image` and `execute certificate remote` operations with the tFTP protocol.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
FortiManager · Fortinet
5.6.0 before 6.4.8; 7.0.0 before 7.0.3 · source: NVD
FO
FortiOS · Fortinet
6.0.0 before 6.2.11; 6.4.0 before 6.4.9; 7.0.0 before 7.0.6 · source: NVD
FO
Fortianalyzer · Fortinet
5.6.0 before 6.4.8; 7.0.0 before 7.0.3 · source: NVD
FO
Fortiproxy · Fortinet
1.0.0 before 2.0.9; 7.0.0 before 7.0.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-43072
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-43072
Not Applicable
https://fortiguard.com/advisory/FG-IR-21-206
Vendor Advisory
https://www.fortiguard.com/psirt/FG-IR-21-206
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