CVE-2021-23253

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Opera Mini for Android below 53.1 displays URL left-aligned in the address field. This allows a malicious attacker to craft a URL with a long domain name, e.g. www.safe.opera.com.attacker.com. With the URL being left-aligned, the user will only see the front part (e.g. www.safe.opera.com…) The exact amount depends on the phone screen size but the attacker can craft a number of different domains and target different phones. Starting with version 53.1 Opera Mini displays long URLs with the top-level domain label aligned to the right of the address field which mitigates the issue.

Opera Mini para Android versiones por debajo de 53.1, muestra la URL alineada a la izquierda en el campo de dirección. Esto permite a un atacante malicioso crear una URL con un nombre de dominio largo, por ejemplo, www.safe.opera.com.attacker.com. Con la URL alineada a la izquierda, el usuario solo verá la parte frontal (por ejemplo, www.safe.opera.com ...) La cantidad exacta depende del tamaño de la pantalla del teléfono, pero el atacante puede crear varios dominios diferentes y apuntar a diferentes teléfonos . A partir de la versión 53.1, Opera Mini muestra URL largas con la etiqueta de dominio de nivel superior alineada a la derecha del campo de dirección, lo que mitiga el problema

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-08 CVE Reserved
2021-01-11 CVE Published
2023-09-27 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://security.opera.com/address-bar-spoofing-in-opera-mini-opera-security-advisories	2021-01-20

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Opera Search vendor "Opera"		Opera Mini Search vendor "Opera" for product "Opera Mini"				< 53.1 Search vendor "Opera" for product "Opera Mini" and version " < 53.1"		android		Affected