CVE-2018-2696

mysql: sha256_password authentication DoS via long password

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server : Security : Privileges). Supported versions that are affected are 5.6.38 and prior and 5.7.20 and prior. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Vulnerabilidad en el componente MySQL Server en Oracle MySQL (subcomponente: Server: Security: Privileges). Las versiones compatibles que se han visto afectadas son la 5.6.38 y anteriores, y la 5.7.20 y anteriores. Una vulnerabilidad fácilmente explotable permite que un atacante sin autenticar que tenga acceso a red por medio de múltiples protocolos comprometa la seguridad de MySQL Server. Los ataques exitosos a esta vulnerabilidad pueden dar lugar a que el atacante consiga provocar el bloqueo o cierre repetido (DoS completo) de MySQL Server. CVSS 3.0 Base Score 7.5 (Impactos de disponibilidad). Vector CVSS: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2017-12-15 CVE Reserved
2018-01-18 CVE Published
2024-04-23 EPSS Updated
2024-10-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-770: Allocation of Resources Without Limits or Throttling

CAPEC

References (9)

URL	Tag	Source
http://www.securityfocus.com/bid/102701	Third Party Advisory
http://www.securitytracker.com/id/1040216	Third Party Advisory
https://security.netapp.com/advisory/ntap-20180117-0002	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html	2018-03-28

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2018:0586	2018-03-28
https://access.redhat.com/errata/RHSA-2018:0587	2018-03-28
https://usn.ubuntu.com/3537-1	2018-03-28
https://access.redhat.com/security/cve/CVE-2018-2696	2018-03-26
https://bugzilla.redhat.com/show_bug.cgi?id=1509475	2018-03-26

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Oracle Search vendor "Oracle"		Mysql Search vendor "Oracle" for product "Mysql"				>= 5.6.0 <= 5.6.38 Search vendor "Oracle" for product "Mysql" and version " >= 5.6.0 <= 5.6.38"		-		Affected
Oracle Search vendor "Oracle"		Mysql Search vendor "Oracle" for product "Mysql"				>= 5.7.0 <= 5.7.20 Search vendor "Oracle" for product "Mysql" and version " >= 5.7.0 <= 5.7.20"		-		Affected