CVE-2020-8657

KEVEyesOfNetwork Use of Hard-Coded Credentials Vulnerability

Description

EyesOfNetwork contains a use of hard-coded credentials vulnerability, as it uses the same API key by default. Exploitation allows an attacker to calculate or guess the admin access token.

An issue was discovered in EyesOfNetwork 5.3. The installation uses the same API key (hardcoded as EONAPI_KEY in include/api_functions.php for API version 2.4.2) by default for all installations, hence allowing an attacker to calculate/guess the admin access token.

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

PublishedFeb 6, 2020

Last modifiedJun 17, 2026

Added to KEVNov 3, 2021

Remediation dueMay 3, 2022

References

packetstormsecurity.com/files/156605/EyesOfNetwork-AutoDiscovery-Target-Command-Execution.htmlExploitThird Party Advisory
github.com/EyesOfNetworkCommunity/eonapi/issues/17Third Party Advisory
cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-8657US Government Resource

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Risk assessment · Critical

Actively exploited. Patch immediately.

Exploitation: Confirmed in the wild (CISA KEV)
Federal remediation deadline: Overdue by 1638 days
CVSS: 9.8 CRITICAL
EPSS (30-day exploit probability): 91.9% · top 1% of all CVEs
Weakness: CWE-798
Attack vector: Network, remotely reachable
Preconditions: No privileges and no user interaction

Recommended actions

1.Apply updates per vendor instructions.
2.Treat as emergency change: patch or isolate internet-facing instances first.
3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.

Assessment is derived automatically from the live signals above; verify against your own asset inventory.