Vulnerability Description
A vulnerability in a specific CLI command that is run on Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to overwrite arbitrary files in the configuration database of an affected device. This vulnerability is due to insufficient validation of specific CLI command parameters. An attacker could exploit this vulnerability by issuing that command with specific parameters. A successful exploit could allow the attacker to overwrite the content of the configuration database and gain root-level access to an affected device.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ios Xe | 17.3.1a |
| Cisco | Asr 1000-X | - |
| Cisco | Asr 1001 | - |
| Cisco | Asr 1001-X | - |
| Cisco | Asr 1002 | - |
| Cisco | Asr 1002-X | - |
| Cisco | Asr 1004 | - |
| Cisco | Asr 1006 | - |
| Cisco | Asr 1013 | - |
| Cisco | Asr 1023 | - |
| Cisco | 4321 Integrated Services Router | - |
| Cisco | 4331 Integrated Services Router | - |
| Cisco | 4351 Integrated Services Router | - |
| Cisco | 4431 Integrated Services Router | - |
| Cisco | 1100-4G Integrated Services Router | - |
| Cisco | 1100-4Gltegb Integrated Services Router | - |
| Cisco | 1100-4Gltena Integrated Services Router | - |
| Cisco | 1100-6G Integrated Services Router | - |
| Cisco | 1100-Lte Integrated Services Router | - |
| Cisco | 1100 Integrated Services Router | - |
Related Weaknesses (CWE)
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iVendor Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iVendor Advisory
FAQ
What is CVE-2021-34723?
CVE-2021-34723 is a vulnerability with a CVSS score of 6.7 (MEDIUM). A vulnerability in a specific CLI command that is run on Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to overwrite arbitrary files in the configuration database of an affe...
How severe is CVE-2021-34723?
CVE-2021-34723 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-34723?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios Xe, Cisco Asr 1000-X, Cisco Asr 1001, Cisco Asr 1001-X, Cisco Asr 1002.