TeamcityApplication · Jetbrains

CVE-2022-24334

MEDIUM · 5.3 CVSS v3.1 Published 2022-02-25
Fix available
A fix is available. Upgrade to 2021.2.1 or later.
See remediation →
62/100
Remediation priority · Elevated
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
In JetBrains TeamCity before 2021.2.1, the Agent Push feature allowed selection of any private key on the server.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

In JetBrains TeamCity before version 2021.2.1, the Agent Push feature contained an improper access control vulnerability that allowed authenticated users to select any private key stored on the TeamCity server, rather than being restricted to keys legitimately required for agent deployment. This could enable privilege escalation or unauthorized access to connected build agents.

MitigationUpgrade JetBrains TeamCity to version 2021.2.1 or later. If immediate upgrading is not possible, restrict access to the Agent Push functionality to only trusted administrators and audit existing private key usage.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
TeamcityApplication
Affected:< 2021.2.1

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Check TeamCity server version
    Navigate to Administration > Server Administration > Overview or check the login page footer for the version number. Compare against 2021.2.1.
    Affected if Version is lower than 2021.2.1
  2. Verify Agent Push plugin status
    Go to Administration > Plugins > Built-in Plugins and confirm the 'Agent Push' plugin is installed and enabled.
    Affected if Agent Push plugin is present and enabled on any version below 2021.2.1
  3. Inspect private key storage configuration
    Navigate to Administration > Server Administration > SSH Keys or Agent Push settings page and list all stored private keys accessible through the server.
    Affected if Any private keys are stored on the TeamCity server and Agent Push is accessible to non-admin users
  4. Review Agent Push access control settings
    Check Administration > User Management > Roles and Permissions for which users or groups have permission to use the Agent Push feature.
    Affected if Users other than trusted administrators have Agent Push permissions
  5. Audit Agent Push usage logs
    Review TeamCity audit logs under Administration > Server Administration > Audit Log for any Agent Push operations that accessed private keys outside expected agent deployment scopes.
    Affected if Agent Push was used to access private keys by users without legitimate need

A user is affected if running TeamCity version below 2021.2.1 with the Agent Push feature enabled and accessible to users beyond trusted administrators.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 2021.2.1 or later
Fixed in 2021.2.1
Interim mitigation

Upgrade JetBrains TeamCity to version 2021.2.1 or later. If immediate upgrading is not possible, restrict access to the Agent Push functionality to only trusted administrators and audit existing private key usage.

Recommended fix High confidence

2021.2.1 or later

  1. Back up the TeamCity server data, configuration, and database according to JetBrains backup documentation
  2. Stop the TeamCity server service
  3. Download TeamCity 2021.2.1 or a later stable version from the official JetBrains website (https://www.jetbrains.com/teamcity/download/)
  4. Review the official TeamCity upgrade guide for your deployment type (tar.gz or Windows installer)
  5. Run the upgrade installation following JetBrains upgrade instructions - for tar.gz extraction, extract to a new directory and copy the 'conf' and 'logs' directories from the old installation
  6. Start the TeamCity server
  7. Log in as an administrator and verify the Agent Push feature configuration
  8. Verify that the private key selection is now properly restricted to authorized keys only
Caveat Review JetBrains release notes for 2021.2.x for any breaking changes; major version upgrades may require migration steps

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Teamcity Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-24334 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data