CVE-2023-30851
Potential HTTP policy bypass when using header rules in Cilium
Severity Score
5.3
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-04-18 CVE Reserved
- 2023-05-25 CVE Published
- 2024-05-31 EPSS Updated
- 2024-08-02 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-693: Protection Mechanism Failure
CAPEC
References (4)
| URL | Tag | Source |
|---|---|---|
| https://github.com/cilium/cilium/releases/tag/v1.11.16 | Release Notes | |
| https://github.com/cilium/cilium/releases/tag/v1.12.9 | Release Notes | |
| https://github.com/cilium/cilium/releases/tag/v1.13.2 | Release Notes |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://github.com/cilium/cilium/security/advisories/GHSA-2h44-x2wx-49f4 | 2023-06-01 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Cilium Search vendor "Cilium" | Cilium Search vendor "Cilium" for product "Cilium" | < 1.11.16 Search vendor "Cilium" for product "Cilium" and version " < 1.11.16" | - |
Affected
| ||||||
| Cilium Search vendor "Cilium" | Cilium Search vendor "Cilium" for product "Cilium" | >= 1.12.0 < 1.12.9 Search vendor "Cilium" for product "Cilium" and version " >= 1.12.0 < 1.12.9" | - |
Affected
| ||||||
| Cilium Search vendor "Cilium" | Cilium Search vendor "Cilium" for product "Cilium" | >= 1.13.0 < 1.13.2 Search vendor "Cilium" for product "Cilium" and version " >= 1.13.0 < 1.13.2" | - |
Affected
| ||||||