A out-of-bounds write vulnerability [CWE-787] in FortiOS and FortiProxy may allow a remote unauthenticated attacker to execute arbitrary code or command via specially crafted HTTP requests.

Workaround : disable SSL VPN (disable webmode is NOT a valid workaround)

Note: This is potentially being exploited in the wild.

A insufficiently protected credentials in Fortinet FortiProxy 7.4.0, 7.2.0 through 7.2.6, 7.0.0 through 7.0.12, 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, Fortinet FortiOS 7.4.0 through 7.4.1, 7.2.0 through 7.2.6, 7.0.0 through 7.0.12, 6.4.0 through 6.4.14, 6.2.0 through 6.2.15, 6.0.0 through 6.0.17 allows attacker to execute unauthorized code or commands via targeted social engineering attack

An authorization bypass through user-controlled key vulnerability [CWE-639] in FortiOS and FortiProxy SSLVPN may allow an authenticated attacker to gain access to another user’s bookmark via URL manipulation.

A stack-based buffer overflow in Fortinet FortiOS version 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, 6.4.0 through 6.4.14, 6.2.0 through 6.2.15, 6.0 all versions allows attacker to execute unauthorized code or commands via specially crafted commands

An insufficiently protected credentials vulnerability (CWE-522) in FortiOS and FortiProxy may allow an attacker to obtain the administrator cookie in rare and specific conditions, via tricking the administrator into visiting a malicious attacker-controlled website through the SSL-VPN.

Multiple stack-based buffer overflow vulnerabilities [CWE-121] in the command line interpreter of FortiOS may allow an authenticated attacker to execute unauthorized code or commands via specially crafted command line arguments.

An authorization bypass through user-controlled key vulnerability [CWE-639] in FortiOS and FortiProxy SSLVPN may allow an authenticated attacker to gain access to another user’s bookmark via URL manipulation.

A stack-based buffer overflow [CWE-121] vulnerability in Fortinet FortiOS version 7.2.1 through 7.2.6 and version 7.4.0 through 7.4.1 allows a privileged attacker over the administrative interface to execute arbitrary code or commands via crafted HTTP or HTTPs requests.

An improper certificate validation vulnerability [CWE-295] in FortiOS may allow an unauthenticated attacker in a Man-in-the-Middle position to decipher and alter the FortiLink communication channel between the FortiOS device and a FortiSwitch instance.