CVE-2020-2099

highPriorität · verfolgen · 34OT-Risiko · erhöhtEPSS 0.010 · 63. PerzentilEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
1.01% (63rd) EPSS
CVSS 7.5 · high
Is it mine?
69 products
Prüfe deine Angriffsfläche
Who says so?
5 sources
cnnvd · enisa_euvd · osv · nvd

EPSS · bewertet 2026-10-27

Jenkins 2.213 and earlier, LTS 2.204.1 and earlier improperly reuses encryption key parameters in the Inbound TCP Agent Protocol/3, allowing unauthorized attackers with knowledge of agent names to obtain the connection secrets for those agents, which can be used to connect to Jenkins, impersonating those agents.

01

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

  • Behobenjenkins-0:2.204.2.1583446818-1.el7.noarch as a component of Red Hat OpenShift Container Platform 4.3redhat_csaf

    Before applying this update, ensure all previously released errata relevant to your system have been applied. For OpenShift Container Platform 4.3 see the following documentation, which will be updated shortly for release 4.3.5, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.

    https://access.redhat.com/errata/RHBA-2020:0675
  • Behobenjenkins-0:2.204.2.1583446818-1.el7.src as a component of Red Hat OpenShift Container Platform 4.3redhat_csaf

    Before applying this update, ensure all previously released errata relevant to your system have been applied. For OpenShift Container Platform 4.3 see the following documentation, which will be updated shortly for release 4.3.5, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.

    https://access.redhat.com/errata/RHBA-2020:0675
02

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

8.6
010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 6.4
v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:Lprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 4.7
v3.08.6highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:Lsecondary · OSV
v3.17.9highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:Usecondary · CVSS-BT (t0sche)
v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:Lsecondary · Red Hat Product Security US
03

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-330USprimärCWE-305USCWE-323USCWE-330US
04

betroffene Produkte (69)

Betroffene Produkte und Versionsbereiche.

20 von 69 angezeigt
05

Advisories (3)

Hersteller- und Ökosystem-Meldungen dazu.

  • RHBA-2020:0675Red Hat Bug Fix Advisory: OpenShift Container Platform 4.3.5 packages update2020-03-10csaf · redhat_csafUS

    Red Hat OpenShift Container Platform release 4.3.5 is now available with updates to packages and images that fix several bugs.

  • GHSA-qp4f-2w67-c8hwInbound TCP Agent Protocol/3 authentication bypass in Jenkins2022-05-24ghsa · osvUS

    Jenkins 2.213 and earlier, LTS 2.204.1 and earlier includes support for the Inbound TCP Agent Protocol/3 for communication between controller and agents. While [this protocol has been deprecated in 2018](https://www.jenkins.io/changelog-old/#v2.128) and was recently removed from Jenkins in 2.214, it could still easily be enabled in Jenkins LTS 2.204.1, 2.213, and older. This protocol incorrectly reuses encryption parameters which allow an unauthenticated remote attacker to determine the connection secret. This secret can then be used to connect attacker-controlled Jenkins agents to the Jenkins controller. Jenkins 2.204.2 no longer allows for the use of Inbound TCP Agent Protocol/3 by default. The system property `jenkins.slaves.JnlpSlaveAgentProtocol3.ALLOW_UNSAFE` can be set to `true` to allow enabling the Inbound TCP Agent Protocol/3 in Jenkins 2.204.2, but doing so is strongly discouraged. Inbound TCP Agent Protocol/3 was removed completely from Jenkins 2.214 and will not be part of Jenkins LTS after the end of the 2.204.x line.

  • BIT-jenkins-2020-20992024-03-06vendor · osvUS

    Jenkins 2.213 and earlier, LTS 2.204.1 and earlier improperly reuses encryption key parameters in the Inbound TCP Agent Protocol/3, allowing unauthorized attackers with knowledge of agent names to obtain the connection secrets for those agents, which can be used to connect to Jenkins, impersonating those agents.

06

auch bekannt als (5)

Weitere Namen und Kennungen dieser Entität.

07

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvdenisa_euvdosvnvdredhat_csafNVDCVE.orgMITRE
veröffentlicht 2020-01-29geändert 2026-06-17
09

Referenzen (23)

Externe Belege — Patches, Meldungen, Analysen.

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