CVE-2023-50708CWE-203

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

Medium · published December 22, 2023

CVSS v3.1
6.1
EPSS
1%
Percentile
53.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00716 · 53.2th percentile
Weakness
CWE-203 · Observable Discrepancy
Published
2023-12-22T18:25Z
EPSS history
Timeline
  • 22 DEC 18:25Z
    yii2-authclient vulnerable to possible timing attack on string comparison in OAuth1, OAuth2 and OpenID Connect implementation
    cvelistv5