CVE-2020-5200Network attack vector

Server impersonation via reused SSH host keys

Published Apr 30, 2024 · Updated Nov 4, 2024

Improper SSH host-key generation in Minerbabe 4.16 and earlier allows man-in-the-middle attackers to impersonate mining servers. The installation image embeds host keys generated before imaging, so independent deployments present the same SSH server identity. An attacker who can intercept SSH traffic can impersonate a server, while internet-exposed systems can be fingerprinted by the reused public key.

CVSS severity5.9
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper SSH host-key generation in Minerbabe 4.16 and earlier allows man-in-the-middle attackers to impersonate mining servers. The installation image embeds host keys generated before imaging, so independent deployments present the same SSH server identity. An attacker who can intercept SSH traffic can impersonate a server, while internet-exposed systems can be fingerprinted by the reused public key.

The record

CVE
CVE-2020-5200
Published
Apr 30, 2024
Updated
Nov 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.9CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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

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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