CVE-2023-20100
Cisco Ios Xe 17.10.1
Raw vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:HSummary
CVE-2023-20100 is a medium-severity Use of Multiple Resources with Duplicate Identifier (CWE-694) vulnerability in Cisco Ios Xe. Its CVSS base score is 6.8 (Medium).
Operationally, ranked in the top 47% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-24279
Vulnerability Data
A vulnerability in the access point (AP) joining process of the Control and Provisioning of Wireless Access Points (CAPWAP) protocol of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) could allow an unauthenticated, remote attacker to cause a denial…
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of service (DoS) condition on an affected device. This vulnerability is due to a logic error that occurs when certain conditions are met during the AP joining process. An attacker could exploit this vulnerability by adding an AP that is under their control to the network. The attacker then must ensure that the AP successfully joins an affected wireless controller under certain conditions. Additionally, the attacker would need the ability to restart a valid AP that was previously connected to the controller. A successful exploit could allow the attacker to cause the affected device to restart unexpectedly, resulting in a DoS condition.
- CWE(s)
Related Threats
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Affected Assets
Mitigating Controls
Control response
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V8.4.1V3.5.4V6.8.1V9.2.4
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Maintaining software/service inventories requires and enforces unique identifiers to avoid collisions.
Managing identities and credentials for users/services/hardware directly requires unique identifiers.
Lifecycle management of assets includes identifier uniqueness as a supporting practice.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Security testing can detect duplicate identifiers before deployment.
Identity management processes that enforce unique identifiers directly prevent duplicate resource IDs.
Secure development lifecycle practices can catch duplicate-ID issues during design and code review.
Secure coding standards can mandate unique identifier generation and validation.
Configuration management ensures unique identifiers are assigned and maintained across resources.