CVE-2020-2099

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.

CVSS v3 8.6 HIGH
CVSS v2.0 7.5 HIGH

8.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://www.openwall.com/lists/oss-security/2020/01/29/1	Mailing List Third Party Advisory
https://access.redhat.com/errata/RHBA-2020:0402
https://access.redhat.com/errata/RHBA-2020:0675
https://access.redhat.com/errata/RHSA-2020:0681
https://access.redhat.com/errata/RHSA-2020:0683
https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1682	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:jenkins:jenkins:::::lts:::*
	cpe:2.3:a:jenkins:jenkins:::::-:::*

History

No history.

Information

Published : 2020-01-29 16:15

Updated : 2023-12-10 13:13

NVD link : CVE-2020-2099

Mitre link : CVE-2020-2099

CVE.ORG link : CVE-2020-2099

JSON object : View

Products Affected

jenkins

jenkins

CWE

CWE-330

Use of Insufficiently Random Values

{"id": "CVE-2020-2099", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.6, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.7, "exploitabilityScore": 3.9}]}, "published": "2020-01-29T16:15:12.037", "references": [{"url": "http://www.openwall.com/lists/oss-security/2020/01/29/1", "tags": ["Mailing List", "Third Party Advisory"], "source": "jenkinsci-cert@googlegroups.com"}, {"url": "https://access.redhat.com/errata/RHBA-2020:0402", "source": "jenkinsci-cert@googlegroups.com"}, {"url": "https://access.redhat.com/errata/RHBA-2020:0675", "source": "jenkinsci-cert@googlegroups.com"}, {"url": "https://access.redhat.com/errata/RHSA-2020:0681", "source": "jenkinsci-cert@googlegroups.com"}, {"url": "https://access.redhat.com/errata/RHSA-2020:0683", "source": "jenkinsci-cert@googlegroups.com"}, {"url": "https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1682", "tags": ["Vendor Advisory"], "source": "jenkinsci-cert@googlegroups.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-330"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Jenkins versiones 2.213 y anteriores, versiones LTS 2.204.1 y anteriores, reutilizan inapropiadamente los par\u00e1metros de clave de cifrado en el Inbound TCP Agent Protocol/3, permitiendo a atacantes no autorizados con conocimiento de los nombres de los agentes obtener los secretos de conexi\u00f3n para esos agentes, que pueden ser usados para conectar con Jenkins , haci\u00e9ndose pasar por esos agentes."}], "lastModified": "2023-10-25T18:16:29.113", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "EAACE161-BE2D-4BB8-9795-3D76F19433C1", "versionEndIncluding": "2.204.1"}, {"criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "F0F83033-6C48-4AF2-BB2A-157A09D79538", "versionEndIncluding": "2.218"}], "operator": "OR"}]}], "sourceIdentifier": "jenkinsci-cert@googlegroups.com"}