CVE-2023-20200
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.
How to fix
- cisco ucs_6324_fabric_interconnect_firmware4.1\(3l\), 4.2\(3d\) or later
- cisco ucs_6332_fabric_interconnect_firmware4.1\(3l\) or later
- cisco ucs_6332-16up_fabric_interconnect_firmware4.1\(3l\), 4.2\(3b\) or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco firepower_9300_firmware | No range specified | — |
| cisco firepower_4143_firmware | No range specified | — |
| cisco firepower_4112_firmware | No range specified | — |
| cisco ucs_6324_fabric_interconnect_firmware | 4.1 ≤ v < 4.1\(3l\), 4.2 ≤ v < 4.2\(3d\) | 4.1\(3l\), 4.2\(3d\) |
| cisco firepower_4125_firmware | No range specified | — |
| cisco firepower_4115 | No range specified | — |
| cisco ucs_6332_fabric_interconnect_firmware | 4.1 ≤ v < 4.1\(3l\), 4.2 ≤ v ≤ 4.2\(3b\) | 4.1\(3l\) |
| cisco ucs_6332-16up_fabric_interconnect_firmware | 4.1 ≤ v < 4.1\(3l\), 4.2 ≤ v < 4.2\(3b\) | 4.1\(3l\), 4.2\(3b\) |
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