CVE-2023-50708

yii2-authclient vulnerable to possible timing attack on string comparison in OAuth1, OAuth2 and OpenID Connect implementation

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

yii2-authclient is an extension that adds OpenID, OAuth, OAuth2 and OpenId Connect consumers for the Yii framework 2.0. In yii2-authclient prior to version 2.2.15, the Oauth1/2 `state` and OpenID Connect `nonce` is vulnerable for a `timing attack` since it is compared via regular string comparison (instead of `Yii::$app->getSecurity()->compareString()`). Version 2.2.15 contains a patch for the issue. No known workarounds are available.

yii2-authclient es una extensión que agrega consumidores OpenID, OAuth, OAuth2 y OpenId Connect para el framework Yii 2.0. En yii2-authclient antes de la versión 2.2.15, el `state` de Oauth1/2 y el `nonce` de OpenID Connect son vulnerables a un `ataque de sincronización` ya que se compara mediante una comparación de cadenas regular (en lugar de `Yii::$app- >getSecurity()->compareString()`). La versión 2.2.15 contiene un parche para el problema. No hay workarounds disponibles.

*Credits: N/A

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

High

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

None

Integrity

High

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-12-11 CVE Reserved
2023-12-22 CVE Published
2024-01-09 EPSS Updated
2024-08-02 CVE Updated
2024-08-02 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-203: Observable Discrepancy

CAPEC

References (5)

URL	Tag	Source
https://github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OAuth1.php#L158	Product
https://github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OAuth2.php#L121	Product
https://github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OpenIdConnect.php#L420	Product

URL	Date	SRC
https://github.com/yiisoft/yii2-authclient/security/advisories/GHSA-w8vh-p74j-x9xp	2024-08-02

URL	Date	SRC
https://github.com/yiisoft/yii2-authclient/commit/dabddf2154ab7e7703740205a069202554089248	2024-01-08

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Yiiframework Search vendor "Yiiframework"		Yii2-authclient Search vendor "Yiiframework" for product "Yii2-authclient"				< 2.2.15 Search vendor "Yiiframework" for product "Yii2-authclient" and version " < 2.2.15"		-		Affected