Vulnerability · Published Aug 23, 2023 · Assigned by cisco
CVE-2023-20200
High 7.7
In plain English
A high-severity infinite loop in Cisco Firepower Extensible Operating System (FXOS) from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).
Official description
A vulnerability in the Simple Network Management Protocol (SNMP) service of Cisco FXOS Software for Firepower 4100 Series and Firepower 9300 Security Appliances and of Cisco UCS 6300 Series Fabric Interconnects could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to the improper handling of specific SNMP requests. An attacker could exploit this vulnerability by sending a crafted SNMP request to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Note: This vulnerability affects all supported SNMP versions. To exploit this vulnerability through SNMPv2c or earlier, an attacker must know the SNMP community string that is configured on an affected device. To exploit this vulnerability through SNMPv3, the attacker must have valid credentials for an SNMP user who is configured on the affected device.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Unified Computing System (Managed) | 3.1(1e)3.1(1g)3.1(1h)3.1(1k)3.1(1l)3.1(2b)3.1(2c)3.1(2e) |
| Cisco | Cisco Firepower Extensible Operating System (FXOS) | 2.2.1.632.2.1.662.2.1.702.2.2.172.2.2.192.2.2.242.2.2.262.2.2.28 |
Weakness: CWE-835 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H