CVE-2016-2047
mysql: ssl-validate-cert incorrect hostname check
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
The ssl_verify_server_cert function in sql-common/client.c in MariaDB before 5.5.47, 10.0.x before 10.0.23, and 10.1.x before 10.1.10; Oracle MySQL 5.5.48 and earlier, 5.6.29 and earlier, and 5.7.11 and earlier; and Percona Server do not properly verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via a "/CN=" string in a field in a certificate, as demonstrated by "/OU=/CN=bar.com/CN=foo.com."
La función ssl_verify_server_cert en sql-common/client.c en MariaDB en versiones anteriores a 5.5.47, 10.0.x en versiones anteriores a 10.0.23 y 10.1.x en versiones anteriores a 10.1.10; Oracle MySQL 5.5.48 y versiones anteriores, 5.6.29 y versiones anteriores y 5.7.11 y versiones anteriores; y Percona Server no verifica correctamente que el nombre de host del servidor coincide con un nombre de dominio en el Common Name (CN) del asunto o en el campo subjectAltName del certificado X.509, lo que permite a atacantes man-in-the-middlesuplantar servidores SSL a través de una cadena "/CN=" en un campo en un certificado, según lo demostrado por "/OU=/CN=bar.com/CN=foo.com".
It was found that the MariaDB client library did not properly check host names against server identities noted in the X.509 certificates when establishing secure connections using TLS/SSL. A man-in-the-middle attacker could possibly use this flaw to impersonate a server to a client.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2016-01-22 CVE Reserved
- 2016-01-26 CVE Published
- 2023-09-14 EPSS Updated
- 2024-08-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-254: 7PK - Security Features
- CWE-295: Improper Certificate Validation
CAPEC
References (26)
| URL | Tag | Source |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2016/01/26/3 | Mailing List |
|
| http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html | Third Party Advisory |
|
| http://www.securityfocus.com/bid/81810 | Third Party Advisory | |
| http://www.securitytracker.com/id/1035606 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html | 2019-12-27 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Mariadb Search vendor "Mariadb" | Mariadb Search vendor "Mariadb" for product "Mariadb" | >= 5.5.20 < 5.5.47 Search vendor "Mariadb" for product "Mariadb" and version " >= 5.5.20 < 5.5.47" | - |
Affected
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| Mariadb Search vendor "Mariadb" | Mariadb Search vendor "Mariadb" for product "Mariadb" | >= 10.0.0 < 10.0.23 Search vendor "Mariadb" for product "Mariadb" and version " >= 10.0.0 < 10.0.23" | - |
Affected
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| Mariadb Search vendor "Mariadb" | Mariadb Search vendor "Mariadb" for product "Mariadb" | >= 10.1.0 < 10.1.10 Search vendor "Mariadb" for product "Mariadb" and version " >= 10.1.0 < 10.1.10" | - |
Affected
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| Oracle Search vendor "Oracle" | Linux Search vendor "Oracle" for product "Linux" | 7 Search vendor "Oracle" for product "Linux" and version "7" | - |
Affected
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| Oracle Search vendor "Oracle" | Mysql Search vendor "Oracle" for product "Mysql" | >= 5.5.0 <= 5.5.48 Search vendor "Oracle" for product "Mysql" and version " >= 5.5.0 <= 5.5.48" | - |
Affected
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| Oracle Search vendor "Oracle" | Mysql Search vendor "Oracle" for product "Mysql" | >= 5.6.0 <= 5.6.29 Search vendor "Oracle" for product "Mysql" and version " >= 5.6.0 <= 5.6.29" | - |
Affected
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| Oracle Search vendor "Oracle" | Mysql Search vendor "Oracle" for product "Mysql" | >= 5.7.0 <= 5.7.11 Search vendor "Oracle" for product "Mysql" and version " >= 5.7.0 <= 5.7.11" | - |
Affected
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| 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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| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 6.0 Search vendor "Redhat" for product "Enterprise Linux" and version "6.0" | - |
Affected
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| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0" | - |
Affected
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| 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
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04" | lts |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | lts |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 15.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.10" | - |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | lts |
Affected
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