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
Track
*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
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-04-18 CVE Reserved
- 2023-05-25 CVE Published
- 2024-12-17 EPSS Updated
- 2025-01-16 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
| ||||||