CVE-2020-27831

quay: email notifications authorization bypass

Severity Score

4.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A flaw was found in Red Hat Quay, where it does not properly protect the authorization token when authorizing email addresses for repository email notifications. This flaw allows an attacker to add email addresses they do not own to repository notifications.

Se encontró un fallo en Red Hat Quay, donde no protege apropiadamente el token de autorización cuando se autorizan direcciones de correo electrónico para notificaciones de correo electrónico del repositorio. Este fallo permite a un atacante agregar direcciones de correo electrónico que no son de su propiedad a las notificaciones del repositorio

This release of Red Hat Quay v3.3.3 includes: Security Update: quay: persistent XSS in repository notification display quay: email notifications authorization bypass. Issues addressed include bypass and cross site scripting vulnerabilities.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-10-27 CVE Reserved
2021-01-11 CVE Published
2024-08-04 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-284: Improper Access Control
CWE-522: Insufficiently Protected Credentials

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=1905758	2021-01-11
https://access.redhat.com/security/cve/CVE-2020-27831	2021-01-11

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Redhat Search vendor "Redhat"		Quay Search vendor "Redhat" for product "Quay"				>= 3.0.0 < 3.3.3 Search vendor "Redhat" for product "Quay" and version " >= 3.0.0 < 3.3.3"		-		Affected