CVE-2023-30851CWE-693

Potential HTTP policy bypass when using header rules in Cilium

Low · published May 25, 2023

CVSS v3.1
2.6
EPSS
1%
Percentile
50.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
2.6 · LOW
Vector
CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00655 · 50.7th percentile
Weakness
CWE-693 · Protection Mechanism Failure
Published
2023-05-25T17:47Z
EPSS history
Timeline
  • 25 MAY 17:47Z
    Potential HTTP policy bypass when using header rules in Cilium
    cvelistv5