| ID |
CVE-2022-21656
|
| Sažetak |
Envoy is an open source edge and service proxy, designed for cloud-native applications. The default_validator.cc implementation used to implement the default certificate validation routines has a "type confusion" bug when processing subjectAltNames. This processing allows, for example, an rfc822Name or uniformResourceIndicator to be authenticated as a domain name. This confusion allows for the bypassing of nameConstraints, as processed by the underlying OpenSSL/BoringSSL implementation, exposing the possibility of impersonation of arbitrary servers. As a result Envoy will trust upstream certificates that should not be trusted. |
| Reference |
|
| CVSS |
| Base: | 5.8 |
| Impact: | 4.9 |
| Exploitability: | 8.6 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| NETWORK |
MEDIUM |
NONE |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| PARTIAL |
PARTIAL |
NONE |
|
| CVSS vektor |
AV:N/AC:M/Au:N/C:P/I:P/A:N |
| Zadnje važnije ažuriranje |
24-07-2023 - 13:50 |
| Objavljeno |
22-02-2022 - 23:15 |
