CVE-2024-7734 Phoenix Contact: Multiple mGuard devices are vulnerable to a drain of open file descriptors.
Unauthenticated attackers can exhaust file descriptors on Phoenix Contact mGuard devices, blocking valid IPsec VPN peers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-7734?
CVE-2024-7734 is a medium-severity denial of service vulnerability in PHOENIX CONTACT FL MGUARD 2102, published on 10 Sep 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An unauthenticated remote attacker can exploit the behavior of the pathfinder TCP encapsulation service by establishing a high number of TCP connections to the pathfinder TCP encapsulation service. The impact is limited to blocking of valid IPsec VPN peers.
Weakness: CWE-770
Which versions are affected by CVE-2024-7734?
It affects 36 products.
Products include Phoenixcontact Fl Mguard 2102 Firmware, Phoenixcontact Fl Mguard 2105 Firmware, Phoenixcontact Fl Mguard 4102 Pci Firmware, Phoenixcontact Fl Mguard 4102 Pcie Firmware, Phoenixcontact Fl Mguard 4302 Firmware, Phoenixcontact Fl Mguard 4305 Firmware and 30 more.
How do I fix CVE-2024-7734?
No fix has been published for CVE-2024-7734 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-7734 being exploited?
There is no known exploitation of CVE-2024-7734 in the wild and no public exploit code.
Other vulnerabilities in PHOENIX CONTACT FL MGUARD 2102
- CVE-2024-43385 Phoenix Contact: OS command execution through PROXY_HTTP_PORT in mGuard devices
- CVE-2024-43386 Phoenix Contact: OS command execution through EMAIL_NOTIFICATION.TO in mGuard devices.
- CVE-2024-43387 Phoenix Contact: Access files due to improper neutralization of special elements in MGUARD devices
- CVE-2024-43388 Phoenix Contact: SNMP reconfiguration due to improper input validation in MGUARD devices
- CVE-2024-7699 Phoenix Contact: OS command execution in MGUARD products
Sources
Also known as GHSA-rhjq-jm8v-8g8r.