CVE-2021-29792Network attack vector

User impersonation via CA private key exposure

Published Jul 12, 2021 · Updated Sep 16, 2024

Certificate key exposure in IBM Event Streams 10.0.x through 10.3.x allows remote authenticated users to impersonate other users. The documented PKCS#12 generation command places the custom CA private key in a truststore that the UI and CLI distribute to clients. Exposure requires custom certificates and use of the affected instructions; a client can forge certificates and deploy them to gain another user's privileges.

CVSS severity4.7
Medium
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Certificate key exposure in IBM Event Streams 10.0.x through 10.3.x allows remote authenticated users to impersonate other users. The documented PKCS#12 generation command places the custom CA private key in a truststore that the UI and CLI distribute to clients. Exposure requires custom certificates and use of the affected instructions; a client can forge certificates and deploy them to gain another user's privileges.

The record

CVE
CVE-2021-29792
Published
Jul 12, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM Event Streams
Classifications
CWE-269, T1649
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 12, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=10.0
  2. Affected versionversion=10.1
  3. Affected versionversion=10.2
  4. Affected versionversion=10.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

IBM · IBM Event Streamsversion=10.0; version=10.1; version=10.2; version=10.3

Published CVSS scores

4.7IBM CorporationCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1649Steal or Forge Authentication Certificates

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo