CVE-2026-76715

Executive Summary

CVE-2026-76715 is a man-in-the-middle (MitM) vulnerability affecting an administrative component of the Analytics and Location Engine (ALE) appliance, classified under CWE-300 (Channel Accessible by Non-Endpoint / improper authentication of a communication channel). Successful exploitation allows an unauthenticated remote attacker who can position themselves on the network path to execute arbitrary code with root privileges on the affected appliance. The vulnerability is scored CVSS 7.1 (High), is unpatched as of this report, and no public proof-of-concept, Nuclei template, or exploit code exists in tracked sources; it is not listed in CISA KEV and has no EPSS score.

Technical Analysis

CWE-300 describes a weakness in which a communication channel is accessible to an entity that is not an authorized endpoint of that channel, or where the channel integrity/authenticity is not adequately verified. In the context of this CVE, the channel in question is between an administrator (or administrative client) and the administrative component of the ALE appliance. Because the channel is not protected against adversary-in-the-middle positioning, a network-adjacent attacker can intercept, and potentially modify, traffic exchanged over that channel.

The NVD description states the impact clearly: an unauthenticated remote attacker can achieve arbitrary code execution with root privileges on the affected appliance. This means the MitM positioning is the mechanism (or an enabling step) through which malicious content is introduced into an administrative flow — for example, by tampering with or injecting data into a trust relationship that the administrative component does not properly authenticate. The data provided does not specify the protocol, port, TLS configuration, certificate handling mechanism, or the exact administrative interface involved, and no function names, endpoints, or file paths are disclosed. This report therefore analyzes the vulnerability at the class level: an improperly authenticated channel combined with privileged administrative functionality yields root-level remote code execution.

Key technical attributes derived strictly from the provided data:

• Attack vector is Adjacent Network (AV:A), meaning the attacker requires a position on the same or an adjacent network segment (e.g., same VLAN, subnet, or a "man-in-the-middle" position such as ARP/DNS/gateway spoofing or a compromised network device).
• Attack complexity is High (AC:H), consistent with the need to establish a viable interception position and satisfy timing/positioning conditions for a successful MitM.
• Privileges required are None (PR:N) — the attacker needs no prior account on the appliance.
• User interaction is Required (UI:R) — an authorized administrator (or administrative process/client) must initiate or participate in the affected communication for the attack to succeed.
• The scope is Unchanged (S:U), and Confidentiality, Integrity, and Availability are all High (C:H/I:H/A:H), reflecting full compromise of the appliance and root-level control.

The combination of AV:A + AC:H + PR:N + UI:R describes a realistic threat model: an attacker who has already gained a foothold on an internal network (or controls an on-path device) waits for an administrator to perform an administrative action, intercepts or alters the unprotected channel, and leverages the administrative component's trust in that channel to achieve privileged code execution. Because the appliance is a location analytics platform, it may hold sensitive location data and integrate with wireless infrastructure, increasing the value of full root compromise.

Exploitation Scenarios

No public PoC is available; the attack chain below is inferred strictly from the vulnerability class (CWE-300), the NVD description, and the CVSS vector. No function names, endpoints, or parameters are invented.

1. Reconnaissance / target identification The attacker identifies ALE administrative interfaces from a network position on the same or an adjacent segment. This can be done through network scanning, service fingerprinting, and passive traffic analysis to determine when administrative sessions occur and over which channel they traverse. The AV:A vector indicates the attacker is on-path or adjacent, not remote over the internet.

2. Positioning for the man-in-the-middle Because the flaw is CWE-300 (channel accessible by a non-endpoint / improper channel authentication), the attacker must first become an on-path entity relative to the administrative communication. This is achieved at the network layer — e.g., ARP spoofing, rogue gateway/DNS, rogue access point, or control of an intermediate network device — rather than by exploiting the appliance directly. The attacker does not need credentials (PR:N).

3. Triggering the flaw An administrator (UI:R) initiates the administrative interaction with the ALE administrative component. Because the channel is not adequately authenticated or protected against a non-endpoint, the attacker can intercept and relay or modify the traffic. The specific payload depends on the administrative component's protocol and message formats, which are not disclosed in the available data; at the class level, the attacker substitutes or injects content that the administrative component treats as legitimate, causing it to process attacker-controlled data.

4. Execution and post-exploitation Per the NVD description, successful exploitation results in arbitrary code execution with root privileges on the appliance — an unauthenticated-to-root escalation enabled by the MitM. Post-exploitation impact includes full control of the ALE appliance: reading and altering location analytics data, persistent implant installation, lateral movement into the managed network, and potential tampering with integrated wireless/location infrastructure. Availability is High because root control permits disruption or reconfiguration of the platform.

Impact Assessment

CVSS base score 7.1 (High). The vector CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H implies:

• Confidentiality: High — full read access to appliance data, including potentially sensitive location analytics and configuration.
• Integrity: High — attacker can modify system state and data at root level.
• Availability: High — root compromise allows denial of service, reconfiguration, or destruction of the platform.
• Scope: Unchanged — impact is contained to the vulnerable appliance and its security authority.
• Exploitability: constrained by AV:A (adjacent position required) and AC:H (MitM positioning), and gated by UI:R (admin must engage the channel). These factors lower the base score relative to a directly remotely exploitable unauthenticated RCE but do not reduce the severity of a successful attack.

Business impact: ALE administrators should treat a root-level compromise of the appliance as a high-severity incident. Affected systems are deployments that expose an ALE administrative component reachable across a network segment where an adversary can attain on-path positioning. The blast radius includes any data, credentials, integrations, and managed devices the appliance touches, plus any network the appliance can reach with root privileges.

Detection Guidance

Sigma Rule

title: Potential MitM Against Aruba ALE Administrative Component (CVE-2026-76715)
id: 8f3b2c1a-4d5e-4f6a-9b7c-0e1d2c3b4a5f
status: experimental
description: Detects anomalous/tampered administrative communication consistent with a man-in-the-middle attack against the ALE administrative component.
references:
  - https://nvd.nist.gov/vuln/detail/CVE-2026-76715
author: Threat Intelligence
date: 2026/01/01
logsource:
  category: network_connection
  product: zeek
detection:
  selection_ale:
    id.orig_h|exists: true
    id.resp_h|exists: true
  selection_anomaly:
    - 'ssl|validation_status: "unable to get local issuer certificate"'
    - 'ssl|validation_status: "self signed certificate"'
    - 'ssl|ja3|exists: false'
  condition: selection_ale and selection_anomaly
fields:
  - id.orig_h
  - id.resp_h
  - id.resp_p
  - ssl.validation_status
falsepositives:
  - Legitimate certificate rotation or misconfigured administrative clients
level: high

YARA Rule

rule CVE_2026_76715_ALE_MitM_Tamper
{
    meta:
        description = "Detects indicators of tampering/relaying associated with MitM against ALE administrative component (CVE-2026-76715)"
        author = "Threat Intelligence"
        reference = "https://nvd.nist.gov/vuln/detail/CVE-2026-76715"
        date = "2026-01-01"
        severity = "high"
    strings:
        $ale1 = "Analytics and Location Engine" ascii wide nocase
        $ale2 = "ALE" ascii wide
        $mitm1 = "man-in-the-middle" ascii wide nocase
        $exec1 = "/bin/sh" ascii
        $exec2 = "root" ascii wide
    condition:
        (uint16(0) == 0x5A4D or uint32(0) == 0x464C457F) and
        any of ($ale*) and any of ($exec*)
}

Suricata IDS Rule

alert tcp $HOME_NET any -> $HOME_NET any (msg:"CVE-2026-76715 Potential MitM Against Aruba ALE Administrative Component"; flow:established; dsize:>0; app-layer-protocol:!tls; classtype:attempted-admin; reference:cve,CVE-2026-76715; reference:url,nvd.nist.gov/vuln/detail/CVE-2026-76715; sid:2026767150; rev:1;)

Elastic Detection

network where process.name != null and
  destination.port in (80, 8080, 8443, 443) and
  event.category == "network" and
  network.transport == "tcp" and
  not tls.client.server_name : "*" and
  source.ip != null and destination.ip != null

Splunk SPL Query

index=network sourcetype=zeek:conn OR sourcetype=bro:conn
| search resp_p IN (80,443,8080,8443)
| stats count min(_time) as first_seen max(_time) as last_seen by src_ip, dest_ip, dest_port
| where count > 5
| eval first_seen=strftime(first_seen,"%Y-%m-%d %H:%M:%S"), last_seen=strftime(last_seen,"%Y-%m-%d %H:%M:%S")
| sort - count

Wazuh OSSEC Rule

<group name="cve-2026-76715,mitm,ale,">
  <rule id="100767" level="12">
    <decoded_as>json</decoded_as>
    <field name="event.category">network</field>
    <field name="destination.port">443|8443|80|8080</field>
    <description>CVE-2026-76715: Possible MitM or tampered administrative channel to ALE component</description>
    <mitre>
      <id>T1195</id>
    </mitre>
    <group>cve_2026_76715,</group>
  </rule>
</group>

Mitigation & Patch Guidance

Patch confidence: 0/4 (UNPATCHED — no patch evidence from any tracked source).

1. Immediate mitigations

• Treat the ALE administrative component as a high-value target: restrict administrative access to a dedicated, isolated management VLAN/segment and enforce strict network segmentation so an attacker cannot easily attain on-path (AV:A) positioning.
• Enable and enforce strong transport protection and mutual authentication for all administrative channels where the product supports it; disable plaintext or weakly authenticated administrative protocols.
• Use Dynamic ARP Inspection, DHCP snooping, and 802.1X on access networks to make ARP/rogue-gateway MitM positioning harder.
• Monitor for rogue access points, rogue DHCP/DNS, and spoofed gateway behavior on segments that reach the ALE administrative interface.

2. Patch / upgrade steps

• No vendor fix is currently identified in tracked sources (patch confidence 0/4). Contact the vendor (Aruba/HPE) directly for advisory status and an ETA, and monitor the NVD entry (https://nvd.nist.gov/vuln/detail/CVE-2026-76715) for updates.
• When a fix is released, validate the version and apply it to all ALE appliances; because the flaw is a channel/authentication weakness, deployment of the fix should be treated as an urgent, coordinated action.

3. Long-term hardening

• Adopt zero-trust principles for administrative planes: never rely on network position for trust; require authenticated, integrity-protected channels end-to-end.
• Inventory all administrative interfaces and eliminate unnecessary network exposure; log and alert on anomalous administrative sessions.
• Maintain a patch and vulnerability management program with continuous CVE monitoring for network appliances, and rehearse incident response for root-level appliance compromise.

References

• NVD — CVE-2026-76715: https://nvd.nist.gov/vuln/detail/CVE-2026-76715
• MITRE CWE-300 — Channel Accessible by Non-Endpoint: https://cwe.mitre.org/data/definitions/300.html
• MITRE ATT&CK — T1195 Supply Chain Compromise: https://attack.mitre.org/techniques/T1195/
• FIRST EPSS (no score available for this CVE at time of writing): https://www.first.org/epss/
• CISA Known Exploited Vulnerabilities Catalog (CVE not listed): https://www.cisa.gov/known-exploited-vulnerabilities-catalog

Threat actor campaigns / exploit-in-the-wild: none identified. No public PoC, Nuclei template, or exploit code exists in tracked sources, and CVE-2026-76715 is not in CISA KEV.