CVE-2018-0299 Denial of service in Cisco Nexus 4000 unknown
An authenticated remote attacker can cause a Cisco Nexus 4000 switch to reload via a malformed SNMP request, resulting in a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-0299?
CVE-2018-0299 is a medium-severity denial of service vulnerability in Cisco Nx-Os, published on 21 Jun 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability in the Simple Network Management Protocol (SNMP) feature of Cisco NX-OS on the Cisco Nexus 4000 Series Switch could allow an authenticated, remote attacker to cause the device to unexpectedly reload, resulting in a denial of service (DoS) condition. The vulnerability is due to incomplete validation of an SNMP poll request for a specific MIB. An attacker could exploit this vulnerability by sending a specific SNMP poll request to the targeted device. An exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvg10442.
Weakness: CWE-20
Which versions are affected by CVE-2018-0299?
It affects 1 product.
Products include Cisco Nx-Os.
How do I fix CVE-2018-0299?
No fix has been published for CVE-2018-0299 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-2018-0299 being exploited?
There is no known exploitation of CVE-2018-0299 in the wild and no public exploit code.
Other vulnerabilities in Cisco Nx-Os
Sources
Also known as GHSA-hhjf-8rx4-9rp6.