On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed: A vulnerability in the HFS+ partition file parser of ClamAV versions 1.0.0 and earlier, 0.105.1 and earlier, and 0.103.7 and earlier could allow an unauthenticated, remote attacker to execute arbitrary code. This vulnerability is due to a missing buffer size check that may result in a heap buffer overflow write. An attacker could exploit this vulnerability by submitting a crafted HFS+ partition file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to execute arbitrary code with the privileges of the ClamAV scanning process, or else crash the process, resulting in a denial of service (DoS) condition. For a description of this vulnerability, see the ClamAV blog ["https://blog.clamav.net/"].

In ASQ in Stormshield Network Security (SNS) 1.0.0 through 2.7.8, 2.8.0 through 2.16.0, 3.0.0 through 3.7.20, 3.8.0 through 3.11.8, and 4.0.1 through 4.2.2, mishandling of memory management can lead to remote code execution.

The L2TP implementation of MPD before 5.9 allows a remote attacker who can send specifically crafted L2TP control packet with AVP Q.931 Cause Code to execute arbitrary code or cause a denial of service (memory corruption).

Stormshield Network Security 2.0.0 through 2.13.0 and 3.0.0 through 3.7.1 has self-XSS in the command line interface of the SNS web server.

ASQ in Stormshield Network Security (SNS) 4.3.15 before 4.3.16 and 4.6.x before 4.6.3 allows a crash when analysing a crafted SIP packet.

The Diffie-Hellman Key Agreement Protocol allows remote attackers (from the client side) to send arbitrary numbers that are actually not public keys, and trigger expensive server-side DHE modular-exponentiation calculations, aka a D(HE)at or D(HE)ater attack. The client needs very little CPU resources and network bandwidth. The attack may be more disruptive in cases where a client can require a server to select its largest supported key size. The basic attack scenario is that the client must claim that it can only communicate with DHE, and the server must be configured to allow DHE.

An issue was discovered in Stormshield SNS through 4.2.1. A brute-force attack can occur.

Stormshield SNS with versions before 3.7.18, 3.11.6 and 4.1.6 has a memory-management defect in the SNMP plugin that can lead to excessive consumption of memory and CPU resources, and possibly a denial of service.

In Stormshield Network Security (SNS) before 3.7.25, 3.8.x through 3.11.x before 3.11.13, 4.x before 4.2.10, and 4.3.x before 4.3.5, a flood of connections to the SSLVPN service might lead to saturation of the loopback interface. This could result in the blocking of almost all network traffic, making the firewall unreachable. An attacker could exploit this via forged and properly timed traffic to cause a denial of service.

An issue was discovered in Stormshield Network Security (SNS) 4.3.x before 4.3.8. The event logging of the ASQ sofbus lacbus plugin triggers the dereferencing of a NULL pointer, leading to a crash of SNS. An attacker could exploit this vulnerability via forged sofbus lacbus traffic to cause a firmware crash.

The PPP implementation of MPD before 5.9 allows a remote attacker who can send specifically crafted PPP authentication message to cause the daemon to read beyond allocated memory buffer, which would result in a denial of service condition.

Flooding SNS firewall versions 3.7.0 to 3.7.29, 3.11.0 to 3.11.17, 4.2.0 to 4.2.10, and 4.3.0 to 4.3.6 with specific forged traffic, can lead to SNS DoS.

In Stormshield Network Security (SNS) 1.0.0 through 3.7.36 before 3.7.37, 3.8.0 through 3.11.24 before 3.11.25, 4.0.0 through 4.3.18 before 4.3.19, 4.4.0 through 4.6.5 before 4.6.6, and 4.7.0 before 4.7.1, the usage of a Network object created from an inactive DHCP interface in the filtering slot results in the usage of an object of the :any" type, which may have unexpected results for access control.

Stormshield Network Security (SNS) before 4.2.2 allows a read-only administrator to gain privileges via CLI commands.

Stormshield Network Security (SNS) 1.0.0 through 4.2.3 allows a Denial of Service.

An issue was discovered in Stormshield Network Security (SNS) 4.0.0 through 4.3.21, 4.4.0 through 4.6.8, and 4.7.0. Sending a crafted ICMP packet may lead to a crash of the ASQ engine.

In Stormshield 1.1.0, and 2.1.0 through 2.9.0, an attacker can block a client from accessing the VPN and can obtain sensitive information through the SN VPN SSL Client.

Stormshield Network Security (SNS) 3.x has an Integer Overflow in the high-availability component.

On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed: A vulnerability in the DMG file parser of ClamAV versions 1.0.0 and earlier, 0.105.1 and earlier, and 0.103.7 and earlier could allow an unauthenticated, remote attacker to access sensitive information on an affected device. This vulnerability is due to enabling XML entity substitution that may result in XML external entity injection. An attacker could exploit this vulnerability by submitting a crafted DMG file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to leak bytes from any file that may be read by the ClamAV scanning process.

An issue was discovered in Stormshield SNS before 4.2.3 (when the proxy is used). An attacker can saturate the proxy connection table. This would result in the proxy denying any new connections.

A vulnerability in Stormshield Network Security could allow an attacker to trigger a protection related to ARP/NDP tables management, which would temporarily prevent the system to contact new hosts via IPv4 or IPv6. This affects versions 2.0.0 to 2.7.7, 2.8.0 to 2.16.0, 3.0.0 to 3.7.16, 3.8.0 to 3.11.4, and 4.0.0 to 4.1.5. Fixed in versions 2.7.8, 3.7.17, 3.11.5, and 4.2.0.

An issue was discovered in Stormshield Network Security (SNS) 3.7.0 through 3.7.39, 3.11.0 through 3.11.27, 4.3.0 through 4.3.22, 4.6.0 through 4.6.9, and 4.7.0 through 4.7.1. It's possible to know if a specific user account exists on the SNS firewall by using remote access commands.

An issue was discovered in Stormshield SNS 3.8.0. Authenticated Stored XSS in the admin login panel leads to SSL VPN credential theft. A malicious disclaimer file can be uploaded from the admin panel. The resulting file is rendered on the authentication interface of the admin panel. It is possible to inject malicious HTML content in order to execute JavaScript inside a victim's browser. This results in a stored XSS on the authentication interface of the admin panel. Moreover, an unsecured authentication form is present on the authentication interface of the SSL VPN captive portal. Users are allowed to save their credentials inside the browser. If an administrator saves his credentials through this unsecured form, these credentials could be stolen via the stored XSS on the admin panel without user interaction. Another possible exploitation would be modification of the authentication form of the admin panel into a malicious form.

A vulnerability was discovered on Stormshield Network Security 4.3.0  to 4.3.41 (included), 4.4.0 to 4.8.15 (included) , 5.0.2 EA to 5.0.5 (included)

A revoked client certificate can still be used to authenticate to the captive‑admin portal, allowing an attacker who possesses the revoked certificate to gain administrative access.

An issue was discovered in Stormshield Network Security (SNS) 4.0.0 through 4.3.25, 4.4.0 through 4.7.5, and 4.8.0. Certain manipulations allow restarting in single-user mode despite the activation of secure boot. The following versions fix this: 4.3.27, 4.7.6, and 4.8.2.

An issue was discovered in Stormshield Network Security (SNS) 3.7.0 through 3.7.41, 3.10.0 through 3.11.29, 4.0 through 4.3.24, and 4.4.0 through 4.7.4. A user who has access to the SNS with write access on the email alerts page has the ability to create alert email containing malicious JavaScript, executed by the template preview. The following versions fix this: 3.7.42, 3.11.30, 4.3.25, and 4.7.5.