CVE-2020-4045Network attack vector

Private-message disclosure via default decryption

Published Jun 11, 2020 · Updated Aug 4, 2024

Information disclosure in Secure Scuttlebutt Consortium ssb-db 20.0.0 allows remote attackers to read private messages. The get() method decrypts any decryptable message by default instead of requiring the private option, and SSB-OOO exposes a wrapper to anonymous peers. Exploitation requires stored private messages and SSB-OOO, which is enabled by default in SSB-Server 16.0.0.

CVSS severity7.5
High
EPSS probability1.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Secure Scuttlebutt Consortium ssb-db 20.0.0 allows remote attackers to read private messages. The get() method decrypts any decryptable message by default instead of requiring the private option, and SSB-OOO exposes a wrapper to anonymous peers. Exploitation requires stored private messages and SSB-OOO, which is enabled by default in SSB-Server 16.0.0.

The record

CVE
CVE-2020-4045
Published
Jun 11, 2020
Updated
Aug 4, 2024
Vendor
Secure Scuttlebutt Consortium
Product
ssb-db
Classifications
CWE-200, T1213
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 11, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 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?

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  1. Affected versionversion== 20.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Secure Scuttlebutt Consortium · ssb-dbversion== 20.0.0

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
7.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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-200Exposure of Sensitive Information to an Unauthorized Actor
T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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