CVE-2017-8301
Severity Score
5.3
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
LibreSSL 2.5.1 to 2.5.3 lacks TLS certificate verification if SSL_get_verify_result is relied upon for a later check of a verification result, in a use case where a user-provided verification callback returns 1, as demonstrated by acceptance of invalid certificates by nginx.
LibreSSL en las versiones 2.5.1 hasta la 2.5.3 carece de verificación de certificados TLS si se invoca SSL_get_verify_result para una comprobación posterior de un resultado de verificación, en un caso de uso en el que una devolución de llamada de verificación proporcionada por el usuario devuelve 1, como lo demuestra la aceptación de certificados no válidos por nginx.
*Credits:
N/A
CVSS Scores
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:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2017-04-27 CVE Reserved
- 2017-04-27 CVE Published
- 2023-05-08 EPSS Updated
- 2024-08-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-295: Improper Certificate Validation
CAPEC
References (4)
| URL | Tag | Source |
|---|---|---|
| http://seclists.org/oss-sec/2017/q2/145 | Mailing List |
|
| http://www.securityfocus.com/bid/98076 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://github.com/libressl-portable/portable/issues/307 | 2019-10-03 | |
| https://trac.nginx.org/nginx/ticket/1257 | 2019-10-03 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Openbsd Search vendor "Openbsd" | Libressl Search vendor "Openbsd" for product "Libressl" | 2.5.1 Search vendor "Openbsd" for product "Libressl" and version "2.5.1" | - |
Affected
| ||||||
| Openbsd Search vendor "Openbsd" | Libressl Search vendor "Openbsd" for product "Libressl" | 2.5.2 Search vendor "Openbsd" for product "Libressl" and version "2.5.2" | - |
Affected
| ||||||
| Openbsd Search vendor "Openbsd" | Libressl Search vendor "Openbsd" for product "Libressl" | 2.5.3 Search vendor "Openbsd" for product "Libressl" and version "2.5.3" | - |
Affected
| ||||||