GHSA-RW54-6826-C8J5

Vulnerability from github – Published: 2023-12-18 19:34 – Updated: 2023-12-22 22:24
VLAI?
Summary
yiisoft/yii2-authclient's Oauth2 PKCE implementation is vulnerable
Details

Impact

What kind of vulnerability is it? Who is impacted?

Original Report:

The Oauth2 PKCE implementation is vulnerable in 2 ways: 1. The authCodeVerifier should be removed after usage (similar to 'authState') 2. There is a risk for a "downgrade attack" if PKCE is being relied on for CSRF protection.

Patches

Has the problem been patched? What versions should users upgrade to?

2.2.15

Workarounds

Is there a way for users to fix or remediate the vulnerability without upgrading?

not known yet.

References

Are there any links users can visit to find out more?

Severity ?
6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "yiisoft/yii2-authclient"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.15"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-50714"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287",
      "CWE-347"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-12-18T19:34:20Z",
    "nvd_published_at": "2023-12-22T19:15:09Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n_What kind of vulnerability is it? Who is impacted?_\n\nOriginal Report:\n\n\u003e The Oauth2 PKCE implementation is vulnerable in 2 ways:\n\u003e 1. The `authCodeVerifier` should be removed after usage (similar to \u0027authState\u0027)\n\u003e 2. There is a risk for a \"downgrade attack\" if PKCE is being relied on for CSRF protection.\n\n### Patches\n_Has the problem been patched? What versions should users upgrade to?_\n\n2.2.15\n\n### Workarounds\n_Is there a way for users to fix or remediate the vulnerability without upgrading?_\n\nnot known yet.\n\n### References\n_Are there any links users can visit to find out more?_\n",
  "id": "GHSA-rw54-6826-c8j5",
  "modified": "2023-12-22T22:24:09Z",
  "published": "2023-12-18T19:34:20Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/yiisoft/yii2-authclient/security/advisories/GHSA-rw54-6826-c8j5"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-50714"
    },
    {
      "type": "WEB",
      "url": "https://github.com/yiisoft/yii2-authclient/commit/721ed974bc44137437b0cdc8454e137fff8db213"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/yiisoft/yii2-authclient"
    },
    {
      "type": "WEB",
      "url": "https://github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OAuth1.php#L158"
    },
    {
      "type": "WEB",
      "url": "https://github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OAuth2.php#L121"
    },
    {
      "type": "WEB",
      "url": "https://github.com/yiisoft/yii2-authclient/blob/0d1c3880f4d79e20aa1d77c012650b54e69695ff/src/OpenIdConnect.php#L420"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "yiisoft/yii2-authclient\u0027s Oauth2 PKCE implementation is vulnerable"
}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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