A protection mechanism failure in Fortinet FortiWeb 7.2.0 through 7.2.1, 7.0.0 through 7.0.6, 6.4.0 through 6.4.3, 6.3.6 through 6.3.23 allows attacker to execute unauthorized code or commands via specially crafted HTTP requests.

An improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability [CWE-78] in FortiWeb version 7.0.1 and below, 6.4 all versions, version 6.3.18 and below may allow a privileged attacker to execute arbitrary bash commands via crafted cli backup parameters.

A loop with unreachable exit condition ('infinite loop') in Fortinet FortiOS version 7.2.0 through 7.2.4, FortiOS version 7.0.0 through 7.0.10, FortiOS 6.4 all versions, FortiOS 6.2 all versions, FortiOS 6.0 all versions, FortiProxy version 7.2.0 through 7.2.3, FortiProxy version 7.0.0 through 7.0.9, FortiProxy 2.0 all versions, FortiProxy 1.2 all versions, FortiProxy 1.1 all versions, FortiProxy 1.0 all versions, FortiWeb version 7.2.0 through 7.2.1, FortiWeb version 7.0.0 through 7.0.6, FortiWeb 6.4 all versions, FortiWeb 6.3 all versions allows attacker to perform a denial of service via specially crafted HTTP requests.

An incomplete filtering of one or more instances of special elements vulnerability [CWE-792] in the command line interpreter of FortiWeb version 6.4.0 through 6.4.1, FortiWeb version 6.3.0 through 6.3.17, FortiWeb all versions 6.2, FortiWeb all versions 6.1, FortiWeb all versions 6.0, FortiRecorder version 6.4.0 through 6.4.3, FortiRecorder all versions 6.0, FortiRecorder all versions 2.7 may allow an authenticated user to read arbitrary files via specially crafted command arguments.

An improper verification of cryptographic signature vulnerability [CWE-347] in FortiWeb 6.4 all versions, 6.3.16 and below, 6.2 all versions, 6.1 all versions, 6.0 all versions; FortiOS 7.0.3 and below, 6.4.8 and below, 6.2 all versions, 6.0 all versions; FortiSwitch 7.0.3 and below, 6.4.10 and below, 6.2 all versions, 6.0 all versions; FortiProxy 7.0.1 and below, 2.0.7 and below, 1.2 all versions, 1.1 all versions, 1.0 all versions may allow an attacker to decrypt portions of the administrative session management cookie if able to intercept the latter.

A condition for session fixation vulnerability [CWE-384] in the session management of FortiWeb versions 6.4 all versions, 6.3.0 through 6.3.16, 6.2.0 through 6.2.6, 6.1.0 through 6.1.2, 6.0.0 through 6.0.7, 5.9.0 through 5.9.1 may allow a remote, unauthenticated attacker to infer the session identifier of other users and possibly usurp their session.