CVE-2023-20234
First published: Wed Aug 23 2023(Updated: )
A vulnerability in the CLI of Cisco FXOS Software could allow an authenticated, local attacker to create a file or overwrite any file on the filesystem of an affected device, including system files. The vulnerability occurs because there is no validation of parameters when a specific CLI command is used. An attacker could exploit this vulnerability by authenticating to an affected device and using the command at the CLI. A successful exploit could allow the attacker to overwrite any file on the disk of the affected device, including system files. The attacker must have valid administrative credentials on the affected device to exploit this vulnerability.
Credit: ykramarz@cisco.com ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Firepower Extensible Operating System | ||
| Cisco Firepower 1000 | ||
| Cisco Firepower 1010 | ||
| Cisco Firepower 1020 | ||
| Cisco Firepower 1030 | ||
| Cisco Firepower 1040 | ||
| Cisco Firepower 2100 | ||
| Cisco Firepower 2110 | ||
| Cisco Firepower 2120 | ||
| Cisco Firepower 2130 | ||
| Cisco Firepower 2140 | ||
| Cisco Firepower 4100 | ||
| Cisco Firepower 4110 | ||
| Cisco Firepower 4110 Next-generation Firewall | ||
| Cisco Firepower 4112 | ||
| Cisco Firepower 4115 | ||
| Cisco Firepower 4120 | ||
| Cisco Firepower 4120 Next-generation Firewall | ||
| Cisco Firepower 4125 | ||
| Cisco Firepower 4140 | ||
| Cisco Firepower 4140 Next-generation Firewall | ||
| Cisco Firepower 4145 | ||
| Cisco Firepower 4150 | ||
| Cisco Firepower 4150 Next-generation Firewall | ||
| Cisco Firepower 9300 | ||
| Cisco Firepower 9300 Security Appliance | ||
| Cisco Firepower 9300 Sm-24 | ||
| Cisco Firepower 9300 Sm-36 | ||
| Cisco Firepower 9300 Sm-40 | ||
| Cisco Firepower 9300 Sm-44 | ||
| Cisco Firepower 9300 Sm-44 X 3 | ||
| Cisco Firepower 9300 Sm-48 | ||
| Cisco Firepower 9300 Sm-56 | ||
| Cisco Firepower 9300 Sm-56 X 3 | ||
| Cisco Firepower 9300 With 1 Sm-24 Module | ||
| Cisco Firepower 9300 With 1 Sm-36 Module | ||
| Cisco Firepower 9300 With 1 Sm-44 Module | ||
| Cisco Firepower 9300 With 3 Sm-44 Module | ||
| Cisco Secure Firewall 3105 | ||
| Cisco Secure Firewall 3110 | ||
| Cisco Secure Firewall 3120 | ||
| Cisco Secure Firewall 3130 | ||
| Cisco Secure Firewall 3140 | ||
| All of | ||
| Cisco Firepower Extensible Operating System | ||
| Any of | ||
| Cisco Firepower 1000 | ||
| Cisco Firepower 1010 | ||
| Cisco Firepower 1020 | ||
| Cisco Firepower 1030 | ||
| Cisco Firepower 1040 | ||
| Cisco Firepower 2100 | ||
| Cisco Firepower 2110 | ||
| Cisco Firepower 2120 | ||
| Cisco Firepower 2130 | ||
| Cisco Firepower 2140 | ||
| Cisco Firepower 4100 | ||
| Cisco Firepower 4110 | ||
| Cisco Firepower 4110 Next-generation Firewall | ||
| Cisco Firepower 4112 | ||
| Cisco Firepower 4115 | ||
| Cisco Firepower 4120 | ||
| Cisco Firepower 4120 Next-generation Firewall | ||
| Cisco Firepower 4125 | ||
| Cisco Firepower 4140 | ||
| Cisco Firepower 4140 Next-generation Firewall | ||
| Cisco Firepower 4145 | ||
| Cisco Firepower 4150 | ||
| Cisco Firepower 4150 Next-generation Firewall | ||
| Cisco Firepower 9300 | ||
| Cisco Firepower 9300 Security Appliance | ||
| Cisco Firepower 9300 Sm-24 | ||
| Cisco Firepower 9300 Sm-36 | ||
| Cisco Firepower 9300 Sm-40 | ||
| Cisco Firepower 9300 Sm-44 | ||
| Cisco Firepower 9300 Sm-44 X 3 | ||
| Cisco Firepower 9300 Sm-48 | ||
| Cisco Firepower 9300 Sm-56 | ||
| Cisco Firepower 9300 Sm-56 X 3 | ||
| Cisco Firepower 9300 With 1 Sm-24 Module | ||
| Cisco Firepower 9300 With 1 Sm-36 Module | ||
| Cisco Firepower 9300 With 1 Sm-44 Module | ||
| Cisco Firepower 9300 With 3 Sm-44 Module | ||
| Cisco Secure Firewall 3105 | ||
| Cisco Secure Firewall 3110 | ||
| Cisco Secure Firewall 3120 | ||
| Cisco Secure Firewall 3130 | ||
| Cisco Secure Firewall 3140 |
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Reference Links
Frequently Asked Questions
What is CVE-2023-20234?
CVE-2023-20234 is a vulnerability in the CLI of Cisco FXOS Software that allows an authenticated, local attacker to create or overwrite files on the affected device.
What is the severity of CVE-2023-20234?
The severity of CVE-2023-20234 is medium with a CVSS score of 6.
How does CVE-2023-20234 occur?
CVE-2023-20234 occurs due to a lack of validation of parameters in a specific CLI command.
Which software is affected by CVE-2023-20234?
Cisco FXOS Software is affected by CVE-2023-20234.
How can I fix CVE-2023-20234?
Cisco has released a security advisory with mitigation details. Please refer to the advisory for instructions on fixing CVE-2023-20234.
- collector/nvd-index
- agent/author
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/last-modified-date
- agent/references
- agent/weakness
- agent/tags
- agent/description
- agent/first-publish-date
- agent/event
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- vendor/cisco
- canonical/cisco firepower extensible operating system
- canonical/cisco firepower 1000
- canonical/cisco firepower 1010
- canonical/cisco firepower 1020
- canonical/cisco firepower 1030
- canonical/cisco firepower 1040
- canonical/cisco firepower 2100
- canonical/cisco firepower 2110
- canonical/cisco firepower 2120
- canonical/cisco firepower 2130
- canonical/cisco firepower 2140
- canonical/cisco firepower 4100
- canonical/cisco firepower 4110
- canonical/cisco firepower 4110 next-generation firewall
- canonical/cisco firepower 4112
- canonical/cisco firepower 4115
- canonical/cisco firepower 4120
- canonical/cisco firepower 4120 next-generation firewall
- canonical/cisco firepower 4125
- canonical/cisco firepower 4140
- canonical/cisco firepower 4140 next-generation firewall
- canonical/cisco firepower 4145
- canonical/cisco firepower 4150
- canonical/cisco firepower 4150 next-generation firewall
- canonical/cisco firepower 9300
- canonical/cisco firepower 9300 security appliance
- canonical/cisco firepower 9300 sm-24
- canonical/cisco firepower 9300 sm-36
- canonical/cisco firepower 9300 sm-40
- canonical/cisco firepower 9300 sm-44
- canonical/cisco firepower 9300 sm-44 x 3
- canonical/cisco firepower 9300 sm-48
- canonical/cisco firepower 9300 sm-56
- canonical/cisco firepower 9300 sm-56 x 3
- canonical/cisco firepower 9300 with 1 sm-24 module
- canonical/cisco firepower 9300 with 1 sm-36 module
- canonical/cisco firepower 9300 with 1 sm-44 module
- canonical/cisco firepower 9300 with 3 sm-44 module
- canonical/cisco secure firewall 3105
- canonical/cisco secure firewall 3110
- canonical/cisco secure firewall 3120
- canonical/cisco secure firewall 3130
- canonical/cisco secure firewall 3140