CVE-2024-20323Network attack vector

TLS hijacking via hard-coded cryptographic key

Published Jul 17, 2024 · Updated Aug 1, 2024

Hard-coded keys in Cisco iNode Software 3.1.2 and earlier and iNode Manager 23.1 and earlier allow remote attackers to hijack TLS. A static private key lets a man-in-the-middle generate a trusted certificate, impersonate an iNode, and inject arbitrary traffic into the manager-to-node connection. Network-path access is required; successful exploitation reads node-bound data, alters node startup configuration, and can interrupt downstream service.

CVSS severity7.5
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded keys in Cisco iNode Software 3.1.2 and earlier and iNode Manager 23.1 and earlier allow remote attackers to hijack TLS. A static private key lets a man-in-the-middle generate a trusted certificate, impersonate an iNode, and inject arbitrary traffic into the manager-to-node connection. Network-path access is required; successful exploitation reads node-bound data, alters node startup configuration, and can interrupt downstream service.

The record

CVE
CVE-2024-20323
Published
Jul 17, 2024
Updated
Aug 1, 2024
Vendor
ClamAV
Product
Cisco Intelligent Node Software
Classifications
CWE-321, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=N/A

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ClamAV · Cisco Intelligent Node Softwareversion=N/A
ClamAV · Cisco Intelligent Node Managerversion=N/A

Published CVSS scores

7.5CiscoCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N/E:X/RL:X/RC:X

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-321Use of Hard-coded Cryptographic Key
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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