Vulnerability Description
A vulnerability in the iPXE boot function of Cisco IOS XR software could allow an authenticated, local attacker to install an unverified software image on an affected device. This vulnerability is due to insufficient image verification. An attacker could exploit this vulnerability by manipulating the boot parameters for image verification during the iPXE boot process on an affected device. A successful exploit could allow the attacker to boot an unverified software image on the affected device.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ios Xr | < 7.10.1 |
| Cisco | 8201 | - |
| Cisco | 8202 | - |
| Cisco | 8208 | - |
| Cisco | 8212 | - |
| Cisco | 8218 | - |
| Cisco | 8804 | - |
| Cisco | 8808 | - |
| Cisco | 8812 | - |
| Cisco | 8818 | - |
| Cisco | 8831 | - |
| Cisco | Asr 9000 | - |
| Cisco | Asr 9000V | - |
| Cisco | Asr 9001 | - |
| Cisco | Asr 9006 | - |
| Cisco | Asr 9010 | - |
| Cisco | Asr 9901 | - |
| Cisco | Asr 9902 | - |
| Cisco | Asr 9903 | - |
| Cisco | Asr 9904 | - |
Related Weaknesses (CWE)
References
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/ciVendor Advisory
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/ciVendor Advisory
FAQ
What is CVE-2023-20236?
CVE-2023-20236 is a vulnerability with a CVSS score of 6.7 (MEDIUM). A vulnerability in the iPXE boot function of Cisco IOS XR software could allow an authenticated, local attacker to install an unverified software image on an affected device. This vulnerability is ...
How severe is CVE-2023-20236?
CVE-2023-20236 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-2023-20236?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios Xr, Cisco 8201, Cisco 8202, Cisco 8208, Cisco 8212.