CVE-2019-14243

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

headerv2.go in mastercactapus proxyprotocol before 0.0.2, as used in the mastercactapus caddy-proxyprotocol plugin through 0.0.2 for Caddy, allows remote attackers to cause a denial of service (webserver panic and daemon crash) via a crafted HAProxy PROXY v2 request with truncated source/destination address data.

headerv2.go en mastercactapus proxyprotocol anterior a versión 0.0.2, tal como es usado en el plugin caddy-proxyprotocol de mastercactapus hasta versión 0.0.2 para Caddy, permite a los atacantes remotos causar una denegación de servicio (pánico del webserver y bloqueo del demonio) por medio de una petición HAProxy PROXY v2 con datos truncados de dirección de origen y destino.

*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

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-07-23 CVE Reserved
2019-07-23 CVE Published
2024-07-16 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-20: Improper Input Validation

CAPEC

References (6)

URL	Tag	Source
https://caddy.community/t/dos-in-http-proxyprotocol-plugin/6014	Third Party Advisory
https://github.com/mastercactapus/caddy-proxyprotocol/issues/8	Issue Tracking
https://github.com/mastercactapus/proxyprotocol/compare/ef496d7...5c4a101	Third Party Advisory
https://github.com/mastercactapus/proxyprotocol/releases/tag/v0.0.2	Release Notes

URL	Date	SRC
https://github.com/mastercactapus/proxyprotocol/issues/1	2024-08-05

URL	Date	SRC
https://github.com/mastercactapus/proxyprotocol/commit/5c4a101121fc3e868026189c7a73f7f19eef90ac	2019-12-16

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Haproxy Search vendor "Haproxy"		Proxyprotocol Search vendor "Haproxy" for product "Proxyprotocol"				< 0.0.2 Search vendor "Haproxy" for product "Proxyprotocol" and version " < 0.0.2"		caddy		Affected