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Document Subtype: Security Bulletin Document ID: hpesbnw04627en_us Last Updated: 2024-06-05 Release Date: 2024-03-26 Document Version: 2 Potential Security Impact: Remote: Denial of Service (DoS) Source: Hewlett Packard Enterprise, HPE Product Security Response Team VULNERABILITY SUMMARY Title HPE ArubaOS-Switch Switches, Authenticated Denial of Service Vulnerability in ArubaOS-Switch SSH Daemon Note: Information originally published in hpe_aruba_networking_-_2024-003.txt Note: A CSAF version of this document exists at hpe_aruba_networking_-_2024-003.json HPE Aruba Networking Product Security Advisory Advisory ID: ARUBA-PSA-2024-003 CVE: CVE-2024-26303 Publication Date: 2024-Mar-26 Status: Confirmed Severity: Medium Revision: 1 Overview HPE Aruba Networking has released updates for wired switching products running ArubaOS-Switch that address a vulnerability in the SSH Daemon. Affected Products HPE Aruba Networking Switch Models: Aruba 5400R Series Switches Aruba 3810 Series Switches Aruba 2920 Series Switches Aruba 2930F Series Switches Aruba 2930M Series Switches Aruba 2530 Series Switches Aruba 2540 Series Switches Aruba 3800 Series Switches Software Branch Versions: ArubaOS-Switch 16.11.xxxx: KB/WC/YA/YB/YC.16.11.0015 and below. ArubaOS-Switch 16.10.xxxx: KB/WC/YA/YB/YC - All versions. ArubaOS-Switch 16.10.xxxx: WB.16.10.24 and below. ArubaOS-Switch 16.09.xxxx: All versions. ArubaOS-Switch 16.08.xxxx: All versions. ArubaOS-Switch 16.07.xxxx: All versions. ArubaOS-Switch 16.06.xxxx: All versions. ArubaOS-Switch 16.05.xxxx: All versions. ArubaOS-Switch 16.04.xxxx: KA/RA.16.04.0027 and below. ArubaOS-Switch 16.03.xxxx: All versions. ArubaOS-Switch 16.02.xxxx: All versions. ArubaOS-Switch 16.01.xxxx: All versions. ArubaOS-Switch 15.xx.xxxx: All versions. Unaffected Products Any other HPE Aruba Networking products not listed above includingAOS-CX Switches, Aruba Intelligent Edge Switches, and HPEOfficeConnect Switches are not affected by these vulnerabilities. Details Authenticated Denial of Service Vulnerability in ArubaOS-Switch SSH Daemon (CVE-2024-26303) A vulnerability exists in the SSH daemon in AOS-S switches. The vulnerability requires a specially crafted request sent to the device to be exploitable. Successful exploitation results in a Denial-of-Service (DoS) condition. Internal reference: APVOS-20 Severity: Medium CVSSv3 Overall Score: 4.9 CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Discovery: This vulnerability was discovered by Adrian Weiss Workaround: To minimize the likelihood of an attacker exploiting these vulnerabilities, HPE Aruba Networking recommends that the CLI and web-based management interfaces be restricted to a dedicated layer 2 segment/VLAN and/or controlled by firewall policies at layer 3 and above. Resolution To address the vulnerabilities described above for the affected release branches, it is recommended to upgrade the software to the following versions: ArubaOS-Switch 16.11.xxxx: KB/WC/YA/YB/YC.16.11.0016 and above. ArubaOS-Switch 16.10.xxxx: WB.16.10.0025 and above. ArubaOS-Switch 16.04.xxxx: KA/RA.16.04.0028 and above. Note: 16.10.xxxx:KB/WC/YA/YB/YC will not receive fixes for these vulnerabilities. Upgrading to KB/WC/YA/YB/YC.16.11.0016 and above will address these vulnerabilities. The software versions listed in the Resolution section are the supported branches as of the publication date of this advisory. Workaround Vulnerability specific workaround is listed above. Contact HPE Services - Aruba Networking for any configuration assistance. ArubaOS-Switch Hardening Guide For general information on hardening ArubaOS-Switch devices against security threats, please see the ArubaOS-Switch Access Security Guide available at: https://support.hpe.com/hpesc/public/docDisplay?docId=a00056155en_us Exploitation and Public Discussion HPE Aruba Networking is not aware of any public discussion or exploit code targeting these specific vulnerabilities as of the release date of the advisory. References: PSRT112165 CVE-2024-26303 SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. Aruba 5400R zl2 Switch Series See description summary for more details. Aruba 2930F Switch Series See description summary for more details. Aruba 2920 Switch Series See description summary for more details. Aruba 2930M Switch Series See description summary for more details. Aruba 2530 Switch Series See description summary for more details. Aruba 2540 Switch Series See description summary for more details. Aruba 3800 Switch Series See description summary for more details. Aruba 3810M Switch Series See description summary for more details. BACKGROUND HPE calculates CVSS using CVSS Version 3.1. If the score is provided from NIST, we will display Version 2.0, 3.0, or 3.1 as provided from NVD. Reference V3 Vector V3 Base Score V2 Vector V2 Base Score CVE-2024-26303 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H 4.9 (AV:L/AC:M/Au:S/C:N/I:N/A:C) 4.4 Information on CVSS is documented in HPE Customer Notice: HPSN-2008-002 This vulnerability was discovered by Adrian Weiss RESOLUTION To address the vulnerabilities described above for the affected release branches, it is recommended to upgrade the software to the following versions: ArubaOS-Switch 16.11.xxxx: KB/WC/YA/YB/YC.16.11.0016 and above. ArubaOS-Switch 16.10.xxxx: WB.16.10.0025 and above. ArubaOS-Switch 16.04.xxxx: KA/RA.16.04.0028 and above. Note: 16.10.xxxx:KB/WC/YA/YB/YC will not receive fixes for these vulnerabilities. Upgrading to KB/WC/YA/YB/YC.16.11.0016 and above will address these vulnerabilities. The software versions listed in the Resolution section are the supported branches as of the publication date of this advisory. HISTORY Version:1 (rev.1) - 26 March 2024 Initial release Version:2 (rev.2) - 5 June 2024 Updated CSAF and text advisory locations in notes Third Party Security Patches: Third party security patches that are to be installed on systems running Hewlett Packard Enterprise (HPE) software products should be applied in accordance with the customer's patch management policy. Support: For issues about implementing the recommendations of this Security Bulletin, contact normal HPE Services support channel. For other issues about the content of this Security Bulletin, send e-mail to security-alert@hpe.com. Report: To report a potential security vulnerability for any HPE supported product: Web Form: https://www.hpe.com/info/report-security-vulnerability Email: security-alert@hpe.com Hewlett Packard Enterprise Product Security Response Policy: https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=a00100637en_us Subscribe: To initiate a subscription to receive future HPE Security Bulletin alerts via Email: http://www.hpe.com/support/Subscriber_Choice Security Bulletin Archive: A list of recently released Security Bulletins is available here: http://www.hpe.com/support/Security_Bulletin_Archive System management and security procedures must be reviewed frequently to maintain system integrity. HPE is continually reviewing and enhancing the security features of software products to provide customers with current secure solutions. "HPE is broadly distributing this Security Bulletin in order to bring to the attention of users of the affected HPE products the important security information contained in this Bulletin. HPE recommends that all users determine the applicability of this information to their individual situations and take appropriate action. HPE does not warrant that this information is necessarily accurate or complete for all user situations and, consequently, HPE will not be responsible for any damages resulting from user's use or disregard of the information provided in this Bulletin. To the extent permitted by law, HPE disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose, title and non-infringement." ©Copyright 2025 Hewlett Packard Enterprise Development LP Hewlett Packard Enterprise Development shall not be liable for technical or editorial errors or omissions contained herein. The information provided is provided "as is" without warranty of any kind. To the extent permitted by law, neither HPE nor its affiliates, subcontractors or suppliers will be liable for incidental, special or consequential damages including downtime cost; lost profits; damages relating to the procurement of substitute products or services; or damages for loss of data, or software restoration. The information in this document is subject to change without notice. Hewlett Packard Enterprise Development and the names of Hewlett Packard Enterprise Development products referenced herein are trademarks of Hewlett Packard Enterprise Development in the United States and other countries. Other product and company names mentioned herein may be trademarks of their respective owners.
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To address the vulnerabilities described above for the affected release branches, it is recommended to upgrade the software to the following versions: ArubaOS-Switch 16.11.xxxx: KB/WC/YA/YB/YC.16.11.0016 and above. ArubaOS-Switch 16.10.xxxx: WB.16.10.0025 and above. ArubaOS-Switch 16.04.xxxx: KA/RA.16.04.0028 and above. Note: 16.10.xxxx:KB/WC/YA/YB/YC will not receive fixes for these vulnerabilities. Upgrading to KB/WC/YA/YB/YC.16.11.0016 and above will address these vulnerabilities. The software versions listed in the Resolution section are the supported branches as of the publication date of this advisory. HISTORY Version:1 (rev.1) - 26 March 2024 Initial release Version:2 (rev.2) - 5 June 2024 Updated CSAF and text advisory locations in notes Third Party Security Patches: Third party security patches that are to be installed on systems running Hewlett Packard Enterprise (HPE) software products should be applied in accordance with the customer's patch management policy. Support: For issues about implementing the recommendations of this Security Bulletin, contact normal HPE Services support channel. For other issues about the content of this Security Bulletin, send e-mail to security-alert@hpe.com. Report: To report a potential security vulnerability for any HPE supported product: Web Form: https://www.hpe.com/info/report-security-vulnerability Email: security-alert@hpe.com Hewlett Packard Enterprise Product Security Response Policy: https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=a00100637en_us Subscribe: To initiate a subscription to receive future HPE Security Bulletin alerts via Email: http://www.hpe.com/support/Subscriber_Choice Security Bulletin Archive: A list of recently released Security Bulletins is available here: http://www.hpe.com/support/Security_Bulletin_Archive