Medium severity · published May 16, 2016
CVE-2015-3152
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…
5.9
CVSS
7.1%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)7.1% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MY
MySQL · Oracle
through 5.7.2 · source: NVD
PH
PHP · PHP
5.4.0 before 5.4.43; 5.5.0 before 5.5.27; 5.6.0 before 5.6.11 · source: NVD
DL
Debian Linux · Debian
8.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
7.0 · source: NVD
EL
Enterprise Linux Eus · Redhat
7.1; 7.2; 7.3; 7.4; 7.5; 7.6; +1 more · source: NVD
EL
Enterprise Linux Server · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
7.3; 7.4; 7.6; 7.7 · source: NVD
EL
Enterprise Linux Server Tus · Redhat
7.3; 7.6; 7.7 · source: NVD
EL
Enterprise Linux Workstation · Redhat
7.0 · source: NVD
FE
Fedora · Fedoraproject
21; 22 · source: NVD
MA
Mariadb · Mariadb
5.5.0 before 5.5.44; 10.0.0 before 10.0.20 · source: NVD
MC
Mysql Connector/c · Oracle
through 6.1.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-3152
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-3152
Mailing List
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161436.html
Mailing List
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161625.html
Exploit
http://mysqlblog.fivefarmers.com/2014/04/02/redefining-ssl-option/
Third Party Advisory
http://mysqlblog.fivefarmers.com/2015/04/29/ssltls-in-5-6-and-5-5-ocert-advisory/
Third Party Advisory
http://packetstormsecurity.com/files/131688/MySQL-SSL-TLS-Downgrade.html
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-1646.html
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