Vulnerability Details : CVE-2023-30851
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. This issue only impacts users who have a HTTP policy that applies to multiple `toEndpoints` AND have an allow-all rule in place that affects only one of those endpoints. In such cases, a wildcard rule will be appended to the set of HTTP rules, which could cause bypass of HTTP policies. This issue has been patched in Cilium 1.11.16, 1.12.9, and 1.13.2.
Products affected by CVE-2023-30851
- cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*
- cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*
- cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-30851
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 49 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-30851
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.6
|
3.6
|
NIST | |
|
2.6
|
LOW | CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N |
1.0
|
1.4
|
GitHub, Inc. |
CWE ids for CVE-2023-30851
-
The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.Assigned by: security-advisories@github.com (Secondary)
References for CVE-2023-30851
-
https://github.com/cilium/cilium/releases/tag/v1.13.2
Release 1.13.2 · cilium/cilium · GitHubRelease Notes
-
https://github.com/cilium/cilium/security/advisories/GHSA-2h44-x2wx-49f4
Potential HTTP policy bypass when using header rules · Advisory · cilium/cilium · GitHubVendor Advisory
-
https://github.com/cilium/cilium/releases/tag/v1.11.16
Release 1.11.16 · cilium/cilium · GitHubRelease Notes
-
https://github.com/cilium/cilium/releases/tag/v1.12.9
Release 1.12.9 · cilium/cilium · GitHubRelease Notes
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