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Exploited vulnerabilities (CISA KEV)

CVEs with exploitation confirmed by CISA (Known Exploited Vulnerabilities), with required actions and deadlines.

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CVE-2019-5591 Medium · 6.5 KEV Urgent · 73 Public exploit Ransomware CWE-306 Aug 14, 2020
Fortinet FortiOS Default Configuration Vulnerability
A Default Configuration vulnerability in FortiOS may allow an unauthenticated attacker on the same subnet to intercept sensitive information by impersonating the LDAP server.
CVE-2020-12812 Critical · 9.8 KEV Urgent · 83 Ransomware CWE-178 Jul 24, 2020
Fortinet FortiOS SSL VPN Improper Authentication Vulnerability
An improper authentication vulnerability in SSL VPN in FortiOS 6.4.0, 6.2.0 to 6.2.3, 6.0.9 and below may result in a user being able to log in successfully without being prompted for the second factor of authentication (FortiToken) if they changed the case of their username.
CVE-2019-6693 Medium · 6.5 KEV High · 68 Public exploit Ransomware CWE-798 Nov 21, 2019
Fortinet FortiOS Use of Hard-Coded Credentials Vulnerability
Use of a hard-coded cryptographic key to cipher sensitive data in FortiOS configuration backup file may allow an attacker with access to the backup file to decipher the sensitive data, via knowledge of the hard-coded key. The aforementioned sensitive data includes users' passwords (except the administrator's password), private keys' passphrases and High Availability password (when set).
CVE-2018-13379 Critical · 9.8 KEV Urgent · 100 Public exploit Ransomware CWE-22 Jun 4, 2019
Fortinet FortiOS SSL VPN Path Traversal Vulnerability
An Improper Limitation of a Pathname to a Restricted Directory ("Path Traversal") in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.3 to 5.6.7 and 5.4.6 to 5.4.12 and FortiProxy 2.0.0, 1.2.0 to 1.2.8, 1.1.0 to 1.1.6, 1.0.0 to 1.0.7 under SSL VPN web portal allows an unauthenticated attacker to download system files via special crafted HTTP resource requests.
CVE-2018-13382 High · 7.5 KEV Urgent · 83 Public exploit Ransomware CWE-863 Jun 4, 2019
Fortinet FortiOS and FortiProxy Improper Authorization
An Improper Authorization vulnerability in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.8 and 5.4.1 to 5.4.10 and FortiProxy 2.0.0, 1.2.0 to 1.2.8, 1.1.0 to 1.1.6, 1.0.0 to 1.0.7 under SSL VPN web portal allows an unauthenticated attacker to modify the password of an SSL VPN web portal user via specially crafted HTTP requests
CVE-2018-13383 Medium · 6.5 KEV High · 63 Ransomware CWE-787 May 29, 2019
Fortinet FortiOS and FortiProxy Out-of-bounds Write
A heap buffer overflow in Fortinet FortiOS 6.0.0 through 6.0.4, 5.6.0 through 5.6.10, 5.4.0 through 5.4.12, 5.2.14 and earlier and FortiProxy 2.0.0, 1.2.8 and earlier in the SSL VPN web portal may cause the SSL VPN web service termination for logged in users due to a failure to properly handle javascript href data when proxying webpages.
CVE-2018-13374 Medium · 4.3 KEV Urgent · 77 Public exploit Ransomware CWE-732 Jan 22, 2019
Fortinet FortiOS and FortiADC Improper Access Control Vulnerability
A Improper Access Control in Fortinet FortiOS 6.0.2, 5.6.7 and before, FortiADC 6.1.0, 6.0.0 to 6.0.1, 5.4.0 to 5.4.4 allows attacker to obtain the LDAP server login credentials configured in FortiGate via pointing a LDAP server connectivity test request to a rogue LDAP server instead of the configured one.