CVE-2023-28807
Bypass of ZIA domain fronting detection module through evasion technique
- State
- Published
- Severity
- 5.1 Medium
- Published
- Jan 31, 2024
- Updated
- Jun 17, 2025
- Reserved
- Mar 23, 2023
Description
In Zscaler Internet Access (ZIA) a mismatch between Connect Host and Client Hello's Server Name Indication (SNI) enables attackers to evade network security controls by hiding their communications within legitimate traffic.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.1 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N | Zscaler |
Weaknesses
- CWE-295 Improper Certificate Validation
Affected Products
| Product | Versions |
|---|---|
ZIAZscaler |
|
References
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