Vulnerability-Lookup

GHSA-X674-V45J-FWXW

Vulnerability from github – Published: 2024-04-16 21:41 – Updated: 2024-04-23 20:42

Summary

MSAL.NET applications targeting Xamarin Android and .NET Android (MAUI) susceptible to local denial of service

Details

[!IMPORTANT] ONLY applications targeting Xamarin Android and .NET Android (MAUI) are impacted. All others can safely dismiss this CVE.

Impact

MSAL.NET applications targeting Xamarin Android and .NET Android (e.g., MAUI) using the library from versions 4.48.0 to 4.60.3 (inclusive, except 4.59.1 and 4.60.3) are impacted by a low severity vulnerability.

A malicious application running on a customer Android device can (1) inject HTML/JavaScript in an embedded web view exported by affected applications, or (2) cause local denial of service against applications that were built using MSAL.NET for authentication on the same device (i.e., prevent the user of the legitimate application from logging in) due to incorrect activity export configuration.

Patches

MSAL.NET version 4.60.3 includes the fix. We recommend all users of MSAL.NET that are building public client applications for Android update to the latest version.

Workarounds

We recommend developers update to the latest version of MSAL.NET. If that is not possible, a developer may explicitly mark the MSAL.NET activity non-exported:

<activity android:name="microsoft.identity.client.AuthenticationAgentActivity" android:configChanges="orientation|screenSize" android:exported="false">
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="msalYOUR_CLIENT_ID" android:host="auth" />
</intent-filter>
</activity>

References

Refer to MSAL.NET documentation for latest guidance and best practices on configuring client applications using the library.

Severity ?

3.9 (Low)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.Identity.Client"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.48.0"
            },
            {
              "fixed": "4.59.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.Identity.Client"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.60.0"
            },
            {
              "fixed": "4.60.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-27086"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863",
      "CWE-926"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-04-16T21:41:57Z",
    "nvd_published_at": "2024-04-16T22:15:34Z",
    "severity": "LOW"
  },
  "details": "\u003e[!IMPORTANT]\n\u003e**ONLY** applications targeting Xamarin Android and .NET Android (MAUI) are impacted. All others can safely dismiss this CVE.\n\n### Impact\n\n[MSAL.NET](https://www.nuget.org/packages/Microsoft.Identity.Client/) applications targeting Xamarin Android and .NET Android (e.g., MAUI) using the library from versions `4.48.0` to `4.60.3` (inclusive, except `4.59.1` and `4.60.3`) are impacted by a low severity vulnerability.   \n\nA malicious application running on a customer Android device can (1) inject HTML/JavaScript in an embedded web view exported by affected applications, or (2) cause local denial of service against applications that were built using MSAL.NET for authentication on the same device (i.e., prevent the user of the legitimate application from logging in) due to incorrect activity export configuration.\n\n### Patches\n\nMSAL.NET version 4.60.3 includes the fix. We recommend all users of MSAL.NET that are building public client applications for Android update to the latest version.\n\n### Workarounds\n\nWe recommend developers update to the latest version of MSAL.NET. If that is not possible, a developer may explicitly mark the MSAL.NET activity non-exported:\n\n```xml\n\u003cactivity android:name=\"microsoft.identity.client.AuthenticationAgentActivity\" android:configChanges=\"orientation|screenSize\" android:exported=\"false\"\u003e\n\u003cintent-filter\u003e\n\u003caction android:name=\"android.intent.action.VIEW\" /\u003e\n\u003ccategory android:name=\"android.intent.category.DEFAULT\" /\u003e\n\u003ccategory android:name=\"android.intent.category.BROWSABLE\" /\u003e\n\u003cdata android:scheme=\"msalYOUR_CLIENT_ID\" android:host=\"auth\" /\u003e\n\u003c/intent-filter\u003e\n\u003c/activity\u003e\n```\n\n### References\n\nRefer to [MSAL.NET documentation](https://learn.microsoft.com/entra/msal/dotnet/) for latest guidance and best practices on configuring client applications using the library.\n",
  "id": "GHSA-x674-v45j-fwxw",
  "modified": "2024-04-23T20:42:11Z",
  "published": "2024-04-16T21:41:57Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/security/advisories/GHSA-x674-v45j-fwxw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27086"
    },
    {
      "type": "WEB",
      "url": "https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/commit/413e319472ccf48c86647f19fa2aa49ff6038488"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/AzureAD/microsoft-authentication-library-for-dotnet"
    },
    {
      "type": "WEB",
      "url": "https://learn.microsoft.com/en-us/entra/msal/dotnet"
    },
    {
      "type": "WEB",
      "url": "https://www.nuget.org/packages/Microsoft.Identity.Client"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "MSAL.NET applications targeting Xamarin Android and .NET Android (MAUI) susceptible to local denial of service"
}

CVE-2024-27086 (GCVE-0-2024-27086)

Vulnerability from cvelistv5 – Published: 2024-04-16 21:34 – Updated: 2024-08-02 00:27

Title

MSAL.NET applications targeting Xamarin Android and .NET Android (MAUI) susceptible to local denial of service

Summary

The MSAL library enabled acquisition of security tokens to call protected APIs. MSAL.NET applications targeting Xamarin Android and .NET Android (e.g., MAUI) using the library from versions 4.48.0 to 4.60.0 are impacted by a low severity vulnerability. A malicious application running on a customer Android device can cause local denial of service against applications that were built using MSAL.NET for authentication on the same device (i.e., prevent the user of the legitimate application from logging in) due to incorrect activity export configuration. MSAL.NET version 4.60.1 includes the fix. As a workaround, a developer may explicitly mark the MSAL.NET activity non-exported.

Severity ?

3.9 (Low)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L

CWE

CWE-926 - Improper Export of Android Application Components
CWE-863 - Incorrect Authorization

Assigner

GitHub_M

References

URL

Tags

	https://github.com/AzureAD/microsoft-authenticati…	x_refsource_CONFIRM
	https://github.com/AzureAD/microsoft-authenticati…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	AzureAD	microsoft-authentication-library-for-dotnet	Affected: >= 4.48.0, < 4.59.1 Affected: >= 4.60.0, < 4.60.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-27086",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-07-26T15:25:35.664179Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-07-26T15:25:43.905Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T00:27:57.873Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
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            "name": "https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/security/advisories/GHSA-x674-v45j-fwxw",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/security/advisories/GHSA-x674-v45j-fwxw"
          },
          {
            "name": "https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/commit/413e319472ccf48c86647f19fa2aa49ff6038488",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/commit/413e319472ccf48c86647f19fa2aa49ff6038488"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "microsoft-authentication-library-for-dotnet",
          "vendor": "AzureAD",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 4.48.0, \u003c 4.59.1"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.60.0, \u003c 4.60.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The MSAL library enabled acquisition of security tokens to call protected APIs. MSAL.NET applications targeting Xamarin Android and .NET Android (e.g., MAUI) using the library from versions 4.48.0 to 4.60.0 are impacted by a low severity vulnerability.   \nA malicious application running on a customer Android device    can cause local denial of service against applications that were built using MSAL.NET for authentication on the same device (i.e., prevent the user of the legitimate application from logging in) due to incorrect activity export configuration. MSAL.NET version 4.60.1 includes the fix.  As a workaround, a developer may explicitly mark the MSAL.NET activity non-exported."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 3.9,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-926",
              "description": "CWE-926: Improper Export of Android Application Components",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863: Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
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      "providerMetadata": {
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      },
      "references": [
        {
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          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/security/advisories/GHSA-x674-v45j-fwxw"
        },
        {
          "name": "https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/commit/413e319472ccf48c86647f19fa2aa49ff6038488",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/commit/413e319472ccf48c86647f19fa2aa49ff6038488"
        }
      ],
      "source": {
        "advisory": "GHSA-x674-v45j-fwxw",
        "discovery": "UNKNOWN"
      },
      "title": "MSAL.NET applications targeting Xamarin Android and .NET Android (MAUI) susceptible to local denial of service"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-27086",
    "datePublished": "2024-04-16T21:34:25.839Z",
    "dateReserved": "2024-02-19T14:43:05.992Z",
    "dateUpdated": "2024-08-02T00:27:57.873Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-X674-V45J-FWXW

Impact

Patches

Workarounds

References

CVE-2024-27086 (GCVE-0-2024-27086)

Tags

Sightings

Nomenclature