CVE-2016-5419
curl: TLS session resumption client cert bypass
Severity Score
7.5
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
curl and libcurl before 7.50.1 do not prevent TLS session resumption when the client certificate has changed, which allows remote attackers to bypass intended restrictions by resuming a session.
curl y libcurl en versiones anteriores a 7.50.1 no previene la reanudación de sesión TLS cuando el certificado del cliente ha cambiado, lo que permite a atacantes remotos eludir restricciones previstas reanudando sesión.
It was found that the libcurl library did not prevent TLS session resumption when the client certificate had changed. An attacker could potentially use this flaw to hijack the authentication of the connection by leveraging a previously created connection with a different client certificate.
*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
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2016-06-10 CVE Reserved
- 2016-08-03 CVE Published
- 2023-07-14 EPSS Updated
- 2024-08-06 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-295: Improper Certificate Validation
- CWE-310: Cryptographic Issues
CAPEC
References (21)
| URL | Tag | Source |
|---|---|---|
| http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html | X_refsource_confirm |
|
| http://www.securityfocus.com/bid/92292 | Vdb Entry | |
| http://www.securityfocus.com/bid/92319 | Vdb Entry | |
| http://www.securitytracker.com/id/1036538 | Vdb Entry | |
| http://www.securitytracker.com/id/1038341 | Vdb Entry | |
| https://source.android.com/security/bulletin/2016-12-01.html | X_refsource_confirm | |
| https://www.tenable.com/security/tns-2016-18 | X_refsource_confirm |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://curl.haxx.se/docs/adv_20160803A.html | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Haxx Search vendor "Haxx" | Libcurl Search vendor "Haxx" for product "Libcurl" | <= 7.50.0 Search vendor "Haxx" for product "Libcurl" and version " <= 7.50.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 42.1 Search vendor "Opensuse" for product "Leap" and version "42.1" | - |
Affected
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