Vulnerability Details : CVE-2020-28466
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.
Vulnerability category: Denial of service
Products affected by CVE-2020-28466
- cpe:2.3:a:nats:nats_server:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-28466
1.91%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 88 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-28466
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
Snyk |
References for CVE-2020-28466
-
http://www.openwall.com/lists/oss-security/2021/03/16/2
oss-security - [CVE-2020-28466][CVE-2021-3127] NATS.io vulnerabilitiesMailing List;Third Party Advisory
-
https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMNATSIONATSSERVERSERVER-1042967
SnykThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2021/03/16/1
oss-security - [CVE-2020-28466][CVE-2021-3127] NATS.io vulnerabilitiesMailing List
-
https://github.com/nats-io/nats-server/pull/1731
[FIXED] Detect service import cycles. by derekcollison · Pull Request #1731 · nats-io/nats-server · GitHubPatch;Third Party Advisory
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