Nats Server
CVE-2020-28466
HIGH
GHSA-m4jx-6526-vvhm
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
2DescriptionCVE.org
This affects all versions of package github.com/nats-io/nats-server/server. Untrusted accounts are able to crash the server using configs that represent a service export/import cycles. Disclaimer from the maintainers: Running a NATS service which is exposed to untrusted users presents a heightened risk. Any remote execution flaw or equivalent seriousness, or denial-of-service by unauthenticated users, will lead to prompt releases by the NATS maintainers. Fixes for denial of service issues with no threat of remote execution, when limited to account holders, are likely to just be committed to the main development branch with no special attention. Those who are running such services are encouraged to build regularly from git.
AnalysisAI
This affects all versions of package github.com/nats-io/nats-server/server. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Technical ContextAI
This affects all versions of package github.com/nats-io/nats-server/server. Untrusted accounts are able to crash the server using configs that represent a service export/import cycles. Disclaimer from the maintainers: Running a NATS service which is exposed to untrusted users presents a heightened risk. Any remote execution flaw or equivalent seriousness, or denial-of-service by unauthenticated users, will lead to prompt releases by the NATS maintainers. Fixes for denial of service issues with no threat of remote execution, when limited to account holders, are likely to just be committed to the main development branch with no special attention. Those who are running such services are encouraged to build regularly from git. Affected products include: Linuxfoundation Nats-Server.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
More in Nats Server
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NATS nats-server before 2.7.2 has Incorrect Access Control. Rated high severity (CVSS 8.8), this vulnerability is remote
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An integer overflow in NATS Server before 2.0.2 allows a remote attacker to crash the server by sending a crafted reques
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Protocol injection in NATS Server MQTT support allows an authenticated MQTT client to smuggle control characters (tab, n
NATS nats-server before 2.7.4 allows Directory Traversal (with write access) via an element in a ZIP archive for JetStre
Same technique Denial Of Service
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External POC / Exploit Code
Leaving vuln.today