CVE-2016-7072

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue has been found in PowerDNS Authoritative Server before 3.4.11 and 4.0.2 allowing a remote, unauthenticated attacker to cause a denial of service by opening a large number of TCP connections to the web server. If the web server runs out of file descriptors, it triggers an exception and terminates the whole PowerDNS process. While it's more complicated for an unauthorized attacker to make the web server run out of file descriptors since its connection will be closed just after being accepted, it might still be possible.

Se ha descubierto un problema en PowerDNS Authoritative Server en versiones anteriores a la 3.4.11 y 4.0.2 que permite que un atacante no autenticado remoto provoque una denegación de servicio (DoS) abriendo un gran número de conexiones TCP al servidor web. Si el servidor web se queda sin descriptores de archivo, desencadena una excepción y termina el proceso PowerDNS completo. Aunque es más complicado para un atacante no autorizado hacer que el servidor web se quede sin descriptores de archivo, ya que su conexión se cerrará justo después de que sea aceptada, podría seguir siendo posible

*Credits: N/A

CVSS Scores

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

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-08-23 CVE Reserved
2017-01-15 CVE Published
2024-06-25 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-400: Uncontrolled Resource Consumption

CAPEC

References (3)

URL	Tag	Source
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7072	Issue Tracking

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://doc.powerdns.com/md/security/powerdns-advisory-2016-03	2019-10-09
https://www.debian.org/security/2017/dsa-3764	2019-10-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Powerdns Search vendor "Powerdns"		Authoritative Search vendor "Powerdns" for product "Authoritative"				< 3.4.11 Search vendor "Powerdns" for product "Authoritative" and version " < 3.4.11"		-		Affected
Powerdns Search vendor "Powerdns"		Authoritative Search vendor "Powerdns" for product "Authoritative"				>= 4.0.0 < 4.0.2 Search vendor "Powerdns" for product "Authoritative" and version " >= 4.0.0 < 4.0.2"		-		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