CVE-2023-20135
CVSS 3.1 Score 7.0 of 10 (high)
Details
Published Sep 13, 2023
Updated: Jan 25, 2024
CWE ID 367
CWE ID 347
Summary
CVE-2023-20135 is a vulnerability impacting Cisco IOS XR Software image verification checks. An authenticated, local attacker can exploit this TOCTOU (Time-of-Check, Time-of-Use) race condition during install operations using ISO images. By modifying an ISO image and conducting parallel install requests, an attacker may execute arbitrary code on the underlying operating system, resulting in potential security compromises on affected devices.
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Affected Products
- Cisco IOS XR
Affected Vendors
- Cisco Systems Inc
Advisories, Assessments, and Mitigations
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