CVE-2019-14809

golang: malformed hosts in URLs leads to authorization bypass

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

net/url in Go before 1.11.13 and 1.12.x before 1.12.8 mishandles malformed hosts in URLs, leading to an authorization bypass in some applications. This is related to a Host field with a suffix appearing in neither Hostname() nor Port(), and is related to a non-numeric port number. For example, an attacker can compose a crafted javascript:// URL that results in a hostname of google.com.

net / url in Go antes del 1.11.13 y 1.12.x antes del 1.12.8 maneja mal los hosts mal formados en las URL, lo que lleva a una omisión de autorización en algunas aplicaciones. Esto está relacionado con un campo Host con un sufijo que no aparece en Hostname () ni Port (), y está relacionado con un número de puerto no numérico. Por ejemplo, un atacante puede componer un javascript creado: // URL que da como resultado un nombre de host de google.com.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-08-10 CVE Reserved
2019-08-13 CVE Published
2023-12-07 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-285: Improper Authorization

CAPEC

References (15)

URL	Tag	Source
https://groups.google.com/forum/#%21topic/golang-announce/0uuMm1BwpHE	X_refsource_misc
https://groups.google.com/forum/#%21topic/golang-announce/65QixT3tcmg	X_refsource_confirm
https://seclists.org/bugtraq/2019/Aug/31	Mailing List

URL	Date	SRC
https://github.com/golang/go/issues/29098	2024-08-05

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00076.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00002.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00011.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00021.html	2023-11-07
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00038.html	2023-11-07
https://access.redhat.com/errata/RHSA-2019:3433	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4BBP27PZGSY6OP6D26E5FW4GZKBFHNU7	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LYO6E3H34C346D2E443GLXK7OK6KIYIQ	2023-11-07
https://www.debian.org/security/2019/dsa-4503	2023-11-07
https://access.redhat.com/security/cve/CVE-2019-14809	2019-11-05
https://bugzilla.redhat.com/show_bug.cgi?id=1743129	2019-11-05

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Golang Search vendor "Golang"		Go Search vendor "Golang" for product "Go"				< 1.11.13 Search vendor "Golang" for product "Go" and version " < 1.11.13"		-		Affected
Golang Search vendor "Golang"		Go Search vendor "Golang" for product "Go"				>= 1.12.0 < 1.12.8 Search vendor "Golang" for product "Go" and version " >= 1.12.0 < 1.12.8"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected