High severity · published Feb 2, 2022
CVE-2021-42753
An improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability [CWE-22] in FortiWeb management interface 6.4.1 and below, 6.3.15 and below, 6.2.x,…
8.1
CVSS
1.1%
EPSS
No
On KEV
Description
An improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability [CWE-22] in FortiWeb management interface 6.4.1 and below, 6.3.15 and below, 6.2.x, 6.1.x, 6.0.x, 5.9.x and 5.8.x may allow an authenticated attacker to perform an arbitrary file and directory deletion in the device filesystem.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 66% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
Fortiweb · Fortinet
5.8.0 before 6.3.16; 6.4.0 before 6.4.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-42753
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-42753
Vendor Advisory
https://fortiguard.com/psirt/FG-IR-21-158
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