// For flags

CVE-2015-3152

mysql: use of SSL/TLS can not be enforced in mysql client library (oCERT-2015-003, BACKRONYM)

Severity Score

5.9
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Oracle MySQL before 5.7.3, Oracle MySQL Connector/C (aka libmysqlclient) before 6.1.3, and MariaDB before 5.5.44 use the --ssl option to mean that SSL is optional, which allows man-in-the-middle attackers to spoof servers via a cleartext-downgrade attack, aka a "BACKRONYM" attack.

Oracle MySQL en versiones anteriores a 5.7.3, Oracle MySQL Connector/C (también conocido como libmysqlclient) en versiones anteriores a 6.1.3 y MariaDB en versiones anteriores a 5.5.44 utiliza la opción --ssl significa que SSL es opcional, lo que permite a atacantes man-in-the-middle suplantar servidores a través de un ataque de degradación de texto plano, también conocida como un ataque "BACKRONYM".

It was found that the MySQL client library permitted but did not require a client to use SSL/TLS when establishing a secure connection to a MySQL server using the "--ssl" option. A man-in-the-middle attacker could use this flaw to strip the SSL/TLS protection from a connection between a client and a server.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2015-04-10 CVE Reserved
  • 2015-04-29 CVE Published
  • 2024-08-06 CVE Updated
  • 2024-08-06 First Exploit
  • 2024-08-12 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-295: Improper Certificate Validation
CAPEC
References (19)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Oracle
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Mysql
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<= 5.7.2
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-
Affected
Oracle
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Mysql Connector\/c
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<= 6.1.2
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-
Affected
Mariadb
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Mariadb
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>= 5.5.0 < 5.5.44
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Affected
Mariadb
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Mariadb
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>= 10.0.0 < 10.0.20
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Affected
Fedoraproject
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Fedora
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21
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Affected
Fedoraproject
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Fedora
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22
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Affected
Debian
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Debian Linux
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8.0
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-
Affected
Redhat
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Enterprise Linux Desktop
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7.0
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Affected
Redhat
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Enterprise Linux Eus
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7.1
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Affected
Redhat
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Enterprise Linux Eus
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7.2
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Affected
Redhat
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Enterprise Linux Eus
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7.3
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Affected
Redhat
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Enterprise Linux Eus
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7.4
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Affected
Redhat
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Enterprise Linux Eus
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7.5
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Affected
Redhat
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Enterprise Linux Eus
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7.6
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Affected
Redhat
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Enterprise Linux Eus
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7.7
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Affected
Redhat
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Enterprise Linux Server
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7.0
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Affected
Redhat
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Enterprise Linux Server Aus
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7.3
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Affected
Redhat
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Enterprise Linux Server Aus
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7.4
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Affected
Redhat
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Enterprise Linux Server Aus
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7.6
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Affected
Redhat
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Enterprise Linux Server Aus
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7.7
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Affected
Redhat
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Enterprise Linux Server Tus
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7.3
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Affected
Redhat
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Enterprise Linux Server Tus
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7.6
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Affected
Redhat
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Enterprise Linux Server Tus
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7.7
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Affected
Redhat
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Enterprise Linux Workstation
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7.0
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-
Affected
Php
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Php
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>= 5.4.0 < 5.4.43
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Affected
Php
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Php
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>= 5.5.0 < 5.5.27
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Affected
Php
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Php
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>= 5.6.0 < 5.6.11
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Affected