CVE-2023-20236 — Cisco / Cisco IOS XR Software

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Cisco / Cisco IOS XR Software	affected 5.2.0; affected 5.2.1; affected 5.2.2; affected 5.2.4; affected 5.2.3; affected 5.2.5; affected 5.2.47; affected 5.3.0; affected 5.3.1; affected 5.3.2; affected 5.3.3; affected 5.3.4; affected 6.0.0; affected 6.0.1; affected 6.0.2; affected 6.1.1; affected 6.1.2; affected 6.1.3; affected 6.1.4; affected 6.1.12; affected 6.1.22; affected 6.1.32; affected 6.1.36; affected 6.1.42; affected 6.2.1; affected 6.2.2; affected 6.2.3; affected 6.2.25; affected 6.2.11; affected 6.3.2; affected 6.3.3; affected 6.3.15; affected 6.4.1; affected 6.4.2; affected 6.4.3; affected 6.5.1; affected 6.5.2; affected 6.5.3; affected 6.5.25; affected 6.5.26; affected 6.5.28; affected 6.5.29; affected 6.5.32; affected 6.5.33; affected 6.6.2; affected 6.6.3; affected 6.6.25; affected 6.6.4; affected 7.0.1; affected 7.0.2; affected 7.0.12; affected 7.0.14; affected 7.1.1; affected 7.1.15; affected 7.1.2; affected 7.1.3; affected 6.7.1; affected 6.7.2; affected 6.7.3; affected 6.7.4; affected 7.2.0; affected 7.2.1; affected 7.2.2; affected 7.3.1; affected 7.3.15; affected 7.3.2; affected 7.3.3; affected 7.3.5; affected 7.4.1; affected 7.4.2; affected 6.8.1; affected 6.8.2; affected 7.5.1; affected 7.5.3; affected 7.5.2; affected 7.5.4; affected 7.6.1; affected 7.6.2; affected 7.7.1; affected 7.7.2; affected 7.7.21; affected 6.9.1; affected 6.9.2; affected 7.8.1; affected 7.8.2; affected 7.9.1; affected 7.9.2

Vendor / product

Versions

Cisco / Cisco IOS XR Software

affected 5.2.0; affected 5.2.1; affected 5.2.2; affected 5.2.4; affected 5.2.3; affected 5.2.5; affected 5.2.47; affected 5.3.0; affected 5.3.1; affected 5.3.2; affected 5.3.3; affected 5.3.4; affected 6.0.0; affected 6.0.1; affected 6.0.2; affected 6.1.1; affected 6.1.2; affected 6.1.3; affected 6.1.4; affected 6.1.12; affected 6.1.22; affected 6.1.32; affected 6.1.36; affected 6.1.42; affected 6.2.1; affected 6.2.2; affected 6.2.3; affected 6.2.25; affected 6.2.11; affected 6.3.2; affected 6.3.3; affected 6.3.15; affected 6.4.1; affected 6.4.2; affected 6.4.3; affected 6.5.1; affected 6.5.2; affected 6.5.3; affected 6.5.25; affected 6.5.26; affected 6.5.28; affected 6.5.29; affected 6.5.32; affected 6.5.33; affected 6.6.2; affected 6.6.3; affected 6.6.25; affected 6.6.4; affected 7.0.1; affected 7.0.2; affected 7.0.12; affected 7.0.14; affected 7.1.1; affected 7.1.15; affected 7.1.2; affected 7.1.3; affected 6.7.1; affected 6.7.2; affected 6.7.3; affected 6.7.4; affected 7.2.0; affected 7.2.1; affected 7.2.2; affected 7.3.1; affected 7.3.15; affected 7.3.2; affected 7.3.3; affected 7.3.5; affected 7.4.1; affected 7.4.2; affected 6.8.1; affected 6.8.2; affected 7.5.1; affected 7.5.3; affected 7.5.2; affected 7.5.4; affected 7.6.1; affected 7.6.2; affected 7.7.1; affected 7.7.2; affected 7.7.21; affected 6.9.1; affected 6.9.2; affected 7.8.1; affected 7.8.2; affected 7.9.1; affected 7.9.2

CWE

CWE-347

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-ipxe-sigbypass-pymfyqgB

ADP enrichment

CVE

No English description supplied.

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-ipxe-sigbypass-pymfyqgB

CISA-ADP

No English description supplied.

No references supplied.