CVE-2023-20115

A vulnerability in the SFTP server implementation for Cisco Nexus 3000 Series Switches and 9000 Series Switches in standalone NX-OS mode could allow an authenticated, remote attacker to download or overwrite files from the underlying operating system of an affected device. This vulnerability is due to a logic error when verifying the user role when an SFTP connection is opened to an affected device. An attacker could exploit this vulnerability by connecting and authenticating via SFTP as a valid, non-administrator user. A successful exploit could allow the attacker to read or overwrite files from the underlying operating system with the privileges of the authenticated user. There are workarounds that address this vulnerability.

• CWE-671

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-sftp-xVAp5HfdVendor Advisory
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-sftp-xVAp5HfdVendor Advisory

Published

Aug 23, 2023

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2023-20109A vulnerability in the Cisco Group Encrypted Transport VPN (…6.6
• CVE-2023-20110A vulnerability in the web-based management interface of Cis…6.5
• CVE-2023-20111A vulnerability in the web-based management interface of Cis…6.5
• CVE-2023-20112A vulnerability in Cisco access point (AP) software could al…6.5
• CVE-2023-20113A vulnerability in the web-based management interface of Cis…8.1
• CVE-2023-20114A vulnerability in the file download feature of Cisco Firepo…6.5
• CVE-2023-20116A vulnerability in the Administrative XML Web Service (AXL) …5.7
• CVE-2023-20117Multiple vulnerabilities in the web-based management interfa…7.2
• CVE-2023-20118A vulnerability in the web-based management interface of Cis…7.2
• CVE-2023-20119A vulnerability in the web-based management interface of Cis…6.1
• CVE-2023-20120Multiple vulnerabilities in the web-based management interfa…6.1
• CVE-2023-20121Multiple vulnerabilities in the restricted shell of Cisco Ev…6.7