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.

A use of password hash with insufficient computational effort vulnerability [CWE-916] affecting FortiOS and FortiProxy may allow a privileged attacker with super-admin profile and CLI access to decrypting the backup file.

An improper neutralization of input during web page Generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiOS and FortiProxy reboot page may allow a remote privileged attacker with super-admin access to execute JavaScript code via crafted HTTP GET requests.

An Improper Neutralization of CRLF Sequences in HTTP Headers ('http response splitting') vulnerability [CWE-113] in Fortinet FortiOS 7.2.0 through 7.6.0, FortiProxy 7.2.0 through 7.4.5 may allow a remote unauthenticated attacker to bypass the file filter via crafted HTTP headers.

A channel accessible by non-endpoint vulnerability [CWE-300] in Fortinet FortiOS version 7.4.0 through 7.4.3, 7.2.0 through 7.2.7 and before 7.0.14 & FortiProxy version 7.4.0 through 7.4.3, 7.2.0 through 7.2.9 and before 7.0.16 allows an unauthenticated attacker with the knowledge of device specific data to spoof the identity of a downstream device of the security fabric via crafted TCP requests.

A improper restriction of communication channel to intended endpoints vulnerability [CWE-923] in Fortinet 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 and 6.2.0 through 6.2.16, Fortinet FortiProxy version 7.4.0 through 7.4.2, 7.2.0 through 7.2.9, 7.0.0 through 7.0.15 and 2.0.0 through 2.0.14, 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 and 6.2.0 through 6.2.13, Fortinet FortiAnalyzer 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 and 6.2.0 through 6.2.13, Fortinet FortiVoice version 7.0.0 through 7.0.2, 6.4.0 through 6.4.8 and 6.0.0 through 6.0.12 and Fortinet FortiWeb version 7.4.0 through 7.4.2, 7.2.0 through 7.2.10, 7.0.0 through 7.0.10 allows an unauthenticated attacker in a man-in-the-middle position to impersonate the management device (FortiCloud server or/and in certain conditions, FortiManager), via intercepting the FGFM authentication request between the management device and the managed device

A channel accessible by non-endpoint vulnerability [CWE-300] in FortiOS & FortiProxy may allow an unauthenticated attacker with the knowledge of device specific data to spoof the identity of a downstream device of the security fabric via crafted TCP requests.

An Improper Privilege Management vulnerability [CWE-269] affecting FortiOS, FortiProxy & FortiWeb may allow an authenticated attacker with at least read-only admin permissions to gain super-admin privileges via crafted requests to Node.js websocket module.

A improper restriction of communication channel to intended endpoints vulnerability [CWE-923] in FortiOS, FortiProxy, FortiManager, FortiAnalyzer, FortiVoice and FortiWeb may allow an unauthenticated attacker in a man-in-the-middle position to impersonate the management device (FortiCloud server or/and in certain conditions, FortiManager), via intercepting the FGFM authentication request between the management device and the managed device

A use of externally-controlled format string vulnerability [CWE-134] in FortiOS, FortiProxy, FortiPAM, FortiSRA and FortiWeb may allow a privileged attacker to execute unauthorized code or commands via specially crafted HTTP or HTTPS commands.

A weak authentication in Fortinet FortiOS versions 7.4.0 through 7.4.4, 7.2.0 through 7.2.8, 7.0.0 through 7.0.15, 6.4.0 through 6.4.15, FortiProxy versions 7.4.0 through 7.4.4, 7.2.0 through 7.2.10, 7.0.0 through 7.0.17, 2.0.0 through 2.0.14, FortiManager versions 7.6.0 through 7.6.1, 7.4.1 through 7.4.3, FortiManager Cloud versions 7.4.1 through 7.4.3, FortiAnalyzer Cloud versions 7.4.1 through 7.4.3 allows attacker to execute unauthorized code or commands via a brute-force attack.

An improper neutralization of special elements in output used by a downstream component ('Injection') vulnerability [CWE-74] in FortiOS and FortiProxy SSL-VPN web user interface may allow a remote unauthenticated attacker to perform phishing attempts via crafted requests.

An Improper Neutralization of CRLF Sequences in HTTP Headers ('http response splitting') vulnerability [CWE-113] in FortiOS, FortiProxy and FortiSASE may allow a remote unauthenticated attacker to bypass the file filter via crafted HTTP header.

An improper limitation of a pathname to a restricted directory vulnerability ('path traversal') [CWE-22] in FortiManager, FortiOS, FortiProxy, FortiRecorder, FortiVoice and FortiWeb may allow a remote authenticated attacker with access to the security fabric interface and port to write arbitrary files and a remote unauthenticated attacker with the same network access to delete an arbitrary folder.

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 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 improper privilege management vulnerability [CWE-269] in a Fortinet FortiOS HA cluster version 7.4.0 through 7.4.1 and 7.2.5 and in a FortiProxy HA cluster version 7.4.0 through 7.4.1 allows an authenticated attacker to perform elevated actions via crafted HTTP or HTTPS requests.

An improper authentication vulnerability [CWE-287] in FortiManager, FortiOS, FortiPAM, FortiPortal, FortiProxy and FortiSwitchManager fgfmd daemon may allow an unauthenticated attacker to inject (but not receive) packets in tunnels established between a FortiManager and the targeted device.

An improper neutralization of special elements in output used by a downstream component ('Injection') vulnerability [CWE-74] in FortiOS and FortiProxy SSL-VPN web user interface may allow a remote unauthenticated attacker to perform phishing attempts via crafted requests.

A use of password hash with insufficient computational effort vulnerability [CWE-916] affecting FortiOS and FortiProxy may allow a privileged attacker with super-admin profile and CLI access to decrypting the backup file.

The Fortinet Product Security team has evaluated the impact of the vulnerablity HTTP/2 Rapid Reset Attack, listed below:CVE-2023-44487:The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly.https://nvd.nist.gov/vuln/detail/CVE-2023-44487

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.

An improper neutralization of input during web page Generation vulnerability [CWE-79] in FortiOS and FortiProxy's web SSL VPN UI may allow a remote unauthenticated attacker to perform a Cross-Site Scripting attack via social engineering the targeted user into bookmarking a malicious samba server, then opening the bookmark.

An improper neutralization of input during web page Generation ('Cross-site Scripting') vulnerability [CWE-79] in FortiOS and FortiProxy reboot page may allow a remote privileged attacker with super-admin access to execute JavaScript code via crafted HTTP GET requests.

An insufficient verification of data authenticity vulnerability [CWE-345] in Fortinet FortiOS SSL-VPN tunnel mode version 7.4.0 through 7.4.1, version 7.2.0 through 7.2.7 and before 7.0.12 & FortiProxy SSL-VPN tunnel mode version 7.4.0 through 7.4.1, version 7.2.0 through 7.2.7 and before 7.0.13 allows an authenticated VPN user to send (but not receive) packets spoofing the IP of another user via crafted network packets.

An insufficient verification of data authenticity vulnerability [CWE-345] in FortiOS & FortiProxy SSL-VPN tunnel mode may allow an authenticated VPN user to send (but not receive) packets spoofing the IP of another user via crafted network packets.

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.

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 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.

An improper privilege management vulnerability [CWE-269] in a FortiOS & FortiProxy HA cluster may allow an authenticated attacker to perform elevated actions over the web administrative interface via crafted HTTP or HTTPS requests.