An origin validation error [CWE-346] vulnerability in Fortinet FortiOS IPSec VPN version 7.4.0 through 7.4.1 and version 7.2.6 and below allows an authenticated IPSec VPN user with dynamic IP addressing to send (but not receive) packets spoofing the IP of another user via crafted network packets.
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.
A heap-based buffer overflow vulnerability in the processing of Link Control Protocol messages in FortiGate versions 5.6.12, 6.0.10, 6.2.4 and 6.4.1 and earlier may allow a remote attacker with valid SSL VPN credentials to crash the SSL VPN daemon by sending a large LCP packet, when tunnel mode is enabled. Arbitrary code execution may be theoretically possible, albeit practically very difficult to achieve in this context
AnĀ improper neutralization of special elements in output used by a downstream component ('Injection') vulnerability [CWE-74] in FortiOS version 7.4.3 and below, version 7.2.8 and below, version 7.0.16 and below; FortiProxy version 7.4.3 and below, version 7.2.9 and below, version 7.0.16 and below; FortiSASE version 24.2.b SSL-VPN web user interface may allow a remote unauthenticated attacker to perform phishing attempts via crafted requests.
A missing authentication for critical function in Fortinet FortiManager version 7.4.0 through 7.4.2, 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.14, FortiPAM version 1.2.0, 1.1.0 through 1.1.2, 1.0.0 through 1.0.3, FortiProxy version 7.4.0 through 7.4.2, 7.2.0 through 7.2.9, 7.0.0 through 7.0.17, 2.0.0 through 2.0.14, 1.2.0 through 1.2.13, 1.1.0 through 1.1.6, 1.0.0 through 1.0.7, FortiSwitchManager version 7.2.0 through 7.2.3, 7.0.0 through 7.0.3, FortiPortal version 6.0.0 through 6.0.14, FortiOS version 7.4.0 through 7.4.3, 7.2.0 through 7.2.7, 7.0.0 through 7.0.14, 6.4.0 through 6.4.15, 6.2.0 through 6.2.16, 6.0.0 through 6.0.18 allows attacker to execute unauthorized code or commands via specially crafted packets.
A session fixation in Fortinet FortiOS version 7.4.0 through 7.4.3 and 7.2.0 through 7.2.7 and 7.0.0 through 7.0.13 allows attacker to execute unauthorized code or commands via phishing SAML authentication link.
An improper access control vulnerability [CWE-284] in FortiOS 7.4.0 through 7.4.3, 7.2.5 through 7.2.7, 7.0.12 through 7.0.14 and 6.4.x may allow an attacker who has already successfully obtained write access to the underlying system (via another hypothetical exploit) to bypass the file integrity checking system.
An insufficient session expiration vulnerability [CWE-613] vulnerability in FortiOS 7.2.5 and below, 7.0 all versions, 6.4 all versions; FortiProxy 7.2 all versions, 7.0 all versions; FortiPAM 1.3 all versions, 1.2 all versions, 1.1 all versions, 1.0 all versions; FortiSwitchManager 7.2.1 and below, 7.0 all versions GUI may allow attackers to re-use websessions after GUI logout, should they manage to acquire the required credentials.
An incorrect parsing of numbers with different radices vulnerability [CWE-1389] in FortiProxy version 7.4.3 and below, version 7.2.10 and below, version 7.0.17 and below and FortiOS version 7.4.3 and below, version 7.2.8 and below, version 7.0.15 and below IP address validation feature may permit an unauthenticated attacker to bypass the IP blocklist via crafted requests.
A stack-based buffer overflow in Fortinet FortiPAM version 1.2.0, 1.1.0 through 1.1.2, 1.0.0 through 1.0.3, FortiWeb, FortiAuthenticator, FortiSwitchManager version 7.2.0 through 7.2.3, 7.0.1 through 7.0.3, FortiOS version 7.4.0 through 7.4.3, 7.2.0 through 7.2.7, 7.0.0 through 7.0.14, 6.4.0 through 6.4.15, 6.2.0 through 6.2.16, 6.0.0 through 6.0.18, FortiProxy version 7.4.0 through 7.4.2, 7.2.0 through 7.2.9, 7.0.0 through 7.0.15, 2.0.0 through 2.0.13, 1.2.0 through 1.2.13, 1.1.0 through 1.1.6, 1.0.0 through 1.0.7 allows attacker to execute unauthorized code or commands via specially crafted packets.