Common Weakness Enumeration

CWE-378

Allowed

Creation of Temporary File With Insecure Permissions

Abstraction: Base · Status: Draft

API response cwe.mitre.org

Opening temporary files without appropriate measures or controls can leave the file, its contents and any function that it impacts vulnerable to attack.

85 vulnerabilities reference this CWE, most recent first.

GHSA-4W93-8R29-P2R9

Vulnerability from github – Published: 2024-04-26 21:31 – Updated: 2024-07-03 18:37
VLAI
Details

JumpCloud Agent before 1.178.0 Creates a Temporary File in a Directory with Insecure Permissions. This allows privilege escalation to SYSTEM via a repair action in the installer.

Severity
5.9 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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{
  "affected": [],
  "aliases": [
    "CVE-2023-26603"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-378"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-26T20:15:07Z",
    "severity": "MODERATE"
  },
  "details": "JumpCloud Agent before 1.178.0 Creates a Temporary File in a Directory with Insecure Permissions. This allows privilege escalation to SYSTEM via a repair action in the installer.",
  "id": "GHSA-4w93-8r29-p2r9",
  "modified": "2024-07-03T18:37:07Z",
  "published": "2024-04-26T21:31:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-26603"
    },
    {
      "type": "WEB",
      "url": "https://community.jumpcloud.com/t5/jumpcloud-product-news/bd-p/releases"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2024/MNDT-2024-0003.md"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-4W9F-9M3G-XG89

Vulnerability from github – Published: 2025-08-22 18:31 – Updated: 2025-08-22 18:31
VLAI
Details

Insecure permissions in Reolink Smart 2K+ Plug-in Wi-Fi Video Doorbell with Chime - firmware v3.0.0.4662_2503122283 allow attackers to arbitrarily change other users' passwords via manipulation of the userName value.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2025-55629"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-378"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-22T17:15:34Z",
    "severity": "MODERATE"
  },
  "details": "Insecure permissions in Reolink Smart 2K+ Plug-in Wi-Fi Video Doorbell with Chime - firmware v3.0.0.4662_2503122283 allow attackers to arbitrarily change other users\u0027 passwords via manipulation of the userName value.",
  "id": "GHSA-4w9f-9m3g-xg89",
  "modified": "2025-08-22T18:31:24Z",
  "published": "2025-08-22T18:31:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-55629"
    },
    {
      "type": "WEB",
      "url": "https://relieved-knuckle-264.notion.site/Account-Takeover-Change-password-23c437003642806bb821fec983aedb9f?source=copy_link"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-596R-XQ28-523M

Vulnerability from github – Published: 2024-07-28 03:30 – Updated: 2024-07-28 03:30
VLAI
Details

The MSI installer for Splashtop Streamer for Windows before 3.5.8.0 uses a temporary folder with weak permissions during installation. A local user can exploit this to escalate privileges to SYSTEM by placing a wevtutil.exe file in the folder.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2024-42052"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-378"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-28T03:15:02Z",
    "severity": "HIGH"
  },
  "details": "The MSI installer for Splashtop Streamer for Windows before 3.5.8.0 uses a temporary folder with weak permissions during installation. A local user can exploit this to escalate privileges to SYSTEM by placing a wevtutil.exe file in the folder.",
  "id": "GHSA-596r-xq28-523m",
  "modified": "2024-07-28T03:30:47Z",
  "published": "2024-07-28T03:30:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42052"
    },
    {
      "type": "WEB",
      "url": "https://github.com/SpacePlant/Vulns/blob/main/Advisories/2024/1.md"
    },
    {
      "type": "WEB",
      "url": "https://support-splashtopbusiness.splashtop.com/hc/en-us/articles/15813655496603-Splashtop-Streamer-version-v3-5-8-0-for-Windows-released"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-5CWQ-8G5W-GMHM

Vulnerability from github – Published: 2025-04-25 21:31 – Updated: 2025-04-29 18:30
VLAI
Details

NETSCOUT nGeniusONE before 6.4.0 b2350 allows Arbitrary File Creation by authenticated users.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2025-32979"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-378"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-25T21:15:38Z",
    "severity": "MODERATE"
  },
  "details": "NETSCOUT nGeniusONE before 6.4.0 b2350 allows Arbitrary File Creation by authenticated users.",
  "id": "GHSA-5cwq-8g5w-gmhm",
  "modified": "2025-04-29T18:30:54Z",
  "published": "2025-04-25T21:31:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-32979"
    },
    {
      "type": "WEB",
      "url": "https://www.netscout.com/securityadvisories"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-5MCR-GQ6C-3HQ2

Vulnerability from github – Published: 2021-02-08 21:17 – Updated: 2022-04-19 15:19
VLAI
Summary
Local Information Disclosure Vulnerability in Netty on Unix-Like systems
Details

Impact

When netty's multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled.

The CVSSv3.1 score of this vulnerability is calculated to be a 6.2/10

Vulnerability Details

On unix-like systems, the temporary directory is shared between all user. As such, writing to this directory using APIs that do not explicitly set the file/directory permissions can lead to information disclosure. Of note, this does not impact modern MacOS Operating Systems.

The method File.createTempFile on unix-like systems creates a random file, but, by default will create this file with the permissions -rw-r--r--. Thus, if sensitive information is written to this file, other local users can read this information.

This is the case in netty's AbstractDiskHttpData is vulnerable.

https://github.com/netty/netty/blob/e5951d46fc89db507ba7d2968d2ede26378f0b04/codec-http/src/main/java/io/netty/handler/codec/http/multipart/AbstractDiskHttpData.java#L80-L101

AbstractDiskHttpData is used as a part of the DefaultHttpDataFactory class which is used by HttpPostRequestDecoder / HttpPostMultiPartRequestDecoder.

You may be affected by this vulnerability your project contains the following code patterns:

channelPipeline.addLast(new HttpPostRequestDecoder(...));

channelPipeline.addLast(new HttpPostMultiPartRequestDecoder(...));

Patches

This has been patched in version 4.1.59.Final.

Workarounds

Specify your own java.io.tmpdir when you start the JVM or use DefaultHttpDataFactory.setBaseDir(...) to set the directory to something that is only readable by the current user.

References

Similar Vulnerabilities

Similar, but not the same.

  • JUnit 4 - https://github.com/junit-team/junit4/security/advisories/GHSA-269g-pwp5-87pp
  • Google Guava - https://github.com/google/guava/issues/4011
  • Apache Ant - https://nvd.nist.gov/vuln/detail/CVE-2020-1945
  • JetBrains Kotlin Compiler - https://nvd.nist.gov/vuln/detail/CVE-2020-15824

For more information

If you have any questions or comments about this advisory: * Open an issue in netty * Email us here

Original Report

Hi Netty Security Team,

I've been working on some security research leveraging custom CodeQL queries to detect local information disclosure vulnerabilities in java applications. This was the result from running this query against the netty project: https://lgtm.com/query/7723301787255288599/

Netty contains three local information disclosure vulnerabilities, so far as I can tell.

One is here, where the private key for the certificate is written to a temporary file.

https://github.com/netty/netty/blob/e5951d46fc89db507ba7d2968d2ede26378f0b04/handler/src/main/java/io/netty/handler/ssl/util/SelfSignedCertificate.java#L316-L346

One is here, where the certificate is written to a temporary file.

https://github.com/netty/netty/blob/e5951d46fc89db507ba7d2968d2ede26378f0b04/handler/src/main/java/io/netty/handler/ssl/util/SelfSignedCertificate.java#L348-L371

The final one is here, where the 'AbstractDiskHttpData' creates a temporary file if the getBaseDirectory() method returns null. I believe that 'AbstractDiskHttpData' is used as a part of the file upload support? If this is the case, any files uploaded would be similarly vulnerable.

https://github.com/netty/netty/blob/e5951d46fc89db507ba7d2968d2ede26378f0b04/codec-http/src/main/java/io/netty/handler/codec/http/multipart/AbstractDiskHttpData.java#L91

All of these vulnerabilities exist because File.createTempFile(String, String) will create a temporary file in the system temporary directory if the 'java.io.tmpdir' system property is not explicitly set. It is my understanding that when java creates a file, by default, and using this method, the permissions on that file utilize the umask. In a majority of cases, this means that the file that java creates has the permissions: -rw-r--r--, thus, any other local user on that system can read the contents of that file.

Impacted OS: - Any OS where the system temporary directory is shared between multiple users. This is not the case for MacOS or Windows.

Mitigation.

Moving to the Files API instead will fix this vulnerability. https://docs.oracle.com/javase/8/docs/api/java/nio/file/Files.html#createTempFile-java.nio.file.Path-java.lang.String-java.lang.String-java.nio.file.attribute.FileAttribute...-

This API will explicitly set the posix file permissions to something safe, by default.

I recently disclosed a similar vulnerability in JUnit 4: https://github.com/junit-team/junit4/security/advisories/GHSA-269g-pwp5-87pp

If you're also curious, this vulnerability in Jetty was also mine, also involving temporary directories, but is not the same vulnerability as in this case. https://github.com/eclipse/jetty.project/security/advisories/GHSA-g3wg-6mcf-8jj6

I would appreciate it if we could perform disclosure of this vulnerability leveraging the GitHub security advisories feature here. GitHub has a nice credit system that I appreciate, plus the disclosures, as you can see from the sampling above, end up looking very nice. https://github.com/netty/netty/security/advisories

This vulnerability disclosure follows Google's 90-day vulnerability disclosure policy (I'm not an employee of Google, I just like their policy). Full disclosure will occur either at the end of the 90-day deadline or whenever a patch is made widely available, whichever occurs first.

Cheers, Jonathan Leitschuh

Severity
6.2 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "io.netty:netty-codec-http"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "4.1.59.Final"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c 4.0.0"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.jboss.netty:netty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c 4.0.0"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "io.netty:netty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-21290"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-378",
      "CWE-379",
      "CWE-668"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-02-08T20:07:45Z",
    "nvd_published_at": "2021-02-08T20:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nWhen netty\u0027s multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled.\n\nThe CVSSv3.1 score of this vulnerability is calculated to be a [6.2/10](https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\u0026version=3.1)\n\n### Vulnerability Details\n\nOn unix-like systems, the temporary directory is shared between all user. As such, writing to this directory using APIs that do not explicitly set the file/directory permissions can lead to information disclosure. Of note, this does not impact modern MacOS Operating Systems.\n\nThe method `File.createTempFile` on unix-like systems creates a random file, but, by default will create this file with the permissions `-rw-r--r--`. Thus, if sensitive information is written to this file, other local users can read this information.\n\nThis is the case in netty\u0027s `AbstractDiskHttpData` is vulnerable.\n\nhttps://github.com/netty/netty/blob/e5951d46fc89db507ba7d2968d2ede26378f0b04/codec-http/src/main/java/io/netty/handler/codec/http/multipart/AbstractDiskHttpData.java#L80-L101\n\n`AbstractDiskHttpData` is used as a part of the `DefaultHttpDataFactory` class which is used by `HttpPostRequestDecoder` / `HttpPostMultiPartRequestDecoder`.\n\nYou may be affected by this vulnerability your project contains the following code patterns:\n\n```java\nchannelPipeline.addLast(new HttpPostRequestDecoder(...));\n```\n\n```java\nchannelPipeline.addLast(new HttpPostMultiPartRequestDecoder(...));\n```\n\n### Patches\n\nThis has been patched in version `4.1.59.Final`.\n\n### Workarounds\n\nSpecify your own `java.io.tmpdir` when you start the JVM or use `DefaultHttpDataFactory.setBaseDir(...)` to set the directory to something that is only readable by the current user.\n\n### References\n\n - [CWE-378: Creation of Temporary File With Insecure Permissions](https://cwe.mitre.org/data/definitions/378.html)\n - [CWE-379: Creation of Temporary File in Directory with Insecure Permissions](https://cwe.mitre.org/data/definitions/379.html)\n\n### Similar Vulnerabilities\n\nSimilar, but not the same.\n\n - JUnit 4 - https://github.com/junit-team/junit4/security/advisories/GHSA-269g-pwp5-87pp\n - Google Guava - https://github.com/google/guava/issues/4011\n - Apache Ant - https://nvd.nist.gov/vuln/detail/CVE-2020-1945\n - JetBrains Kotlin Compiler - https://nvd.nist.gov/vuln/detail/CVE-2020-15824\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [netty](https://github.com/netty/netty)\n* Email us [here](mailto:netty-security@googlegroups.com)\n\n### Original Report\n\n\u003e Hi Netty Security Team,\n\u003e \n\u003e I\u0027ve been working on some security research leveraging custom CodeQL queries to detect local information disclosure vulnerabilities in java applications. This was the result from running this query against the netty project:\n\u003e https://lgtm.com/query/7723301787255288599/\n\u003e \n\u003e Netty contains three local information disclosure vulnerabilities, so far as I can tell.\n\u003e \n\u003e One is here, where the private key for the certificate is written to a temporary file.\n\u003e \n\u003e https://github.com/netty/netty/blob/e5951d46fc89db507ba7d2968d2ede26378f0b04/handler/src/main/java/io/netty/handler/ssl/util/SelfSignedCertificate.java#L316-L346\n\u003e \n\u003e One is here, where the certificate is written to a temporary file.\n\u003e \n\u003e https://github.com/netty/netty/blob/e5951d46fc89db507ba7d2968d2ede26378f0b04/handler/src/main/java/io/netty/handler/ssl/util/SelfSignedCertificate.java#L348-L371\n\u003e \n\u003e The final one is here, where the \u0027AbstractDiskHttpData\u0027 creates a temporary file if the getBaseDirectory() method returns null. I believe that \u0027AbstractDiskHttpData\u0027 is used as a part of the file upload support? If this is the case, any files uploaded would be similarly vulnerable.\n\u003e \n\u003e https://github.com/netty/netty/blob/e5951d46fc89db507ba7d2968d2ede26378f0b04/codec-http/src/main/java/io/netty/handler/codec/http/multipart/AbstractDiskHttpData.java#L91\n\u003e \n\u003e All of these vulnerabilities exist because `File.createTempFile(String, String)` will create a temporary file in the system temporary directory if the \u0027java.io.tmpdir\u0027 system property is not explicitly set. It is my understanding that when java creates a file, by default, and using this method, the permissions on that file utilize the umask. In a majority of cases, this means that the file that java creates has the permissions: `-rw-r--r--`, thus, any other local user on that system can read the contents of that file.\n\u003e \n\u003e Impacted OS:\n\u003e - Any OS where the system temporary directory is shared between multiple users. This is not the case for MacOS or Windows.\n\u003e \n\u003e Mitigation.\n\u003e \n\u003e Moving to the `Files` API instead will fix this vulnerability. \n\u003e https://docs.oracle.com/javase/8/docs/api/java/nio/file/Files.html#createTempFile-java.nio.file.Path-java.lang.String-java.lang.String-java.nio.file.attribute.FileAttribute...-\n\u003e \n\u003e This API will explicitly set the posix file permissions to something safe, by default.\n\u003e \n\u003e I recently disclosed a similar vulnerability in JUnit 4:\n\u003e https://github.com/junit-team/junit4/security/advisories/GHSA-269g-pwp5-87pp\n\u003e \n\u003e If you\u0027re also curious, this vulnerability in Jetty was also mine, also involving temporary directories, but is not the same vulnerability as in this case.\n\u003e https://github.com/eclipse/jetty.project/security/advisories/GHSA-g3wg-6mcf-8jj6\n\u003e \n\u003e I would appreciate it if we could perform disclosure of this vulnerability leveraging the GitHub security advisories feature here. GitHub has a nice credit system that I appreciate, plus the disclosures, as you can see from the sampling above, end up looking very nice.\n\u003e https://github.com/netty/netty/security/advisories\n\u003e \n\u003e This vulnerability disclosure follows Google\u0027s [90-day vulnerability disclosure policy](https://www.google.com/about/appsecurity/) (I\u0027m not an employee of Google, I just like their policy). Full disclosure will occur either at the end of the 90-day deadline or whenever a patch is made widely available, whichever occurs first.\n\u003e \n\u003e Cheers,\n\u003e Jonathan Leitschuh",
  "id": "GHSA-5mcr-gq6c-3hq2",
  "modified": "2022-04-19T15:19:08Z",
  "published": "2021-02-08T21:17:48Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/netty/netty/security/advisories/GHSA-5mcr-gq6c-3hq2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21290"
    },
    {
      "type": "WEB",
      "url": "https://github.com/netty/netty/commit/c735357bf29d07856ad171c6611a2e1a0e0000ec"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/netty/netty"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r7bb3cdc192e9a6f863d3ea05422f09fa1ae2b88d4663e63696ee7ef5@%3Cdev.ranger.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r9924ef9357537722b28d04c98a189750b80694a19754e5057c34ca48@%3Ccommits.pulsar.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/ra0fc2b4553dd7aaf75febb61052b7f1243ac3a180a71c01f29093013@%3Cjira.kafka.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/ra503756ced78fdc2136bd33e87cb7553028645b261b1f5c6186a121e@%3Cjira.kafka.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rb06c1e766aa45ee422e8261a8249b561784186483e8f742ea627bda4@%3Cdev.kafka.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rb51d6202ff1a773f96eaa694b7da4ad3f44922c40b3d4e1a19c2f325@%3Ccommits.pulsar.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rb592033a2462548d061a83ac9449c5ff66098751748fcd1e2d008233@%3Cissues.zookeeper.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rc0087125cb15b4b78e44000f841cd37fefedfda942fd7ddf3ad1b528@%3Cissues.zookeeper.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rc488f80094872ad925f0c73d283d4c00d32def81977438e27a3dc2bb@%3Cjira.kafka.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rcd163e421273e8dca1c71ea298dce3dd11b41d51c3a812e0394e6a5d@%3Ccommits.pulsar.apache.org%3E"
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      "url": "https://security.netapp.com/advisory/ntap-20220210-0011"
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    },
    {
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      "url": "https://lists.apache.org/thread.html/r71dbb66747ff537640bb91eb0b2b24edef21ac07728097016f58b01f@%3Ccommits.kafka.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r743149dcc8db1de473e6bff0b3ddf10140a7357bc2add75f7d1fbb12@%3Cdev.zookeeper.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r790c2926efcd062067eb18fde2486527596d7275381cfaff2f7b3890@%3Cissues.bookkeeper.apache.org%3E"
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  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Local Information Disclosure Vulnerability in Netty on Unix-Like systems"
}

GHSA-5MG8-W23W-74H3

Vulnerability from github – Published: 2021-03-25 17:04 – Updated: 2026-02-23 22:45
VLAI
Summary
Information Disclosure in Guava
Details

A temp directory creation vulnerability exists in Guava prior to version 32.0.0 allowing an attacker with access to the machine to potentially access data in a temporary directory created by the Guava com.google.common.io.Files.createTempDir(). The permissions granted to the directory created default to the standard unix-like /tmp ones, leaving the files open. Maintainers recommend explicitly changing the permissions after the creation of the directory, or removing uses of the vulnerable method.

Severity
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "com.google.guava:guava"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "32.0.0-android"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-8908"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-173",
      "CWE-200",
      "CWE-378",
      "CWE-732"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-03-25T17:01:09Z",
    "nvd_published_at": "2020-12-10T23:15:00Z",
    "severity": "LOW"
  },
  "details": "A temp directory creation vulnerability exists in Guava prior to version 32.0.0 allowing an attacker with access to the machine to potentially access data in a temporary directory created by the Guava `com.google.common.io.Files.createTempDir()`. The permissions granted to the directory created default to the standard unix-like /tmp ones, leaving the files open. Maintainers recommend explicitly changing the permissions after the creation of the directory, or removing uses of the vulnerable method.",
  "id": "GHSA-5mg8-w23w-74h3",
  "modified": "2026-02-23T22:45:53Z",
  "published": "2021-03-25T17:04:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8908"
    },
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      "type": "WEB",
      "url": "https://github.com/google/guava/issues/4011"
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    },
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      "url": "https://lists.apache.org/thread.html/r6874dfe26eefc41b7c9a5e4a0487846fc4accf8c78ff948b24a1104a@%3Cdev.drill.apache.org%3E"
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      "url": "https://lists.apache.org/thread.html/r5d61b98ceb7bba939a651de5900dbd67be3817db6bfcc41c6e04e199%40%3Cyarn-issues.hadoop.apache.org%3E"
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      "url": "https://lists.apache.org/thread.html/r5b3d93dfdfb7708e796e8762ab40edbde8ff8add48aba53e5ea26f44@%3Cissues.geode.apache.org%3E"
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    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r58a8775205ab1839dba43054b09a9ab3b25b423a4170b2413c4067ac%40%3Ccommon-issues.hadoop.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r49549a8322f62cd3acfa4490d25bfba0be04f3f9ff4d14fe36199d27@%3Cyarn-dev.hadoop.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r49549a8322f62cd3acfa4490d25bfba0be04f3f9ff4d14fe36199d27%40%3Cyarn-dev.hadoop.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r4776f62dfae4a0006658542f43034a7fc199350e35a66d4e18164ee6@%3Ccommits.cxf.apache.org%3E"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Information Disclosure in Guava"
}

GHSA-7WG5-5H5V-V89M

Vulnerability from github – Published: 2023-06-13 18:30 – Updated: 2024-04-04 04:47
VLAI
Details

Zoom for MacOSclients prior to 5.14.0 contain an improper access control vulnerability. A malicious user may be able to delete/replace Zoom Client files potentially causing a loss of integrity and availability to the Zoom Client.

Severity
5.2 (Medium)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2023-28600"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-284",
      "CWE-378"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-06-13T18:15:21Z",
    "severity": "MODERATE"
  },
  "details": "Zoom for MacOSclients prior to 5.14.0 contain an improper access control vulnerability.  A malicious user may be able to delete/replace Zoom Client files potentially causing  a loss of integrity and availability to the Zoom Client.\n\n",
  "id": "GHSA-7wg5-5h5v-v89m",
  "modified": "2024-04-04T04:47:42Z",
  "published": "2023-06-13T18:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-28600"
    },
    {
      "type": "WEB",
      "url": "https://explore.zoom.us/en/trust/security/security-bulletin"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-867Q-77CC-98MV

Vulnerability from github – Published: 2021-04-29 21:51 – Updated: 2021-05-10 19:29
VLAI
Summary
Creation of Temporary File in Directory with Insecure Permissions in the OpenAPI Generator Maven plugin
Details

Impact

Using File.createTempFile in JDK will result in creating and using insecure temporary files that can leave application and system data vulnerable to attacks. This vulnerability only impacts unix-like systems where the local system temporary directory is shared between all users. This vulnerability does not impact Windows or modern versions of MacOS.

OpenAPI Generator Maven plug-in creates insecure temporary files during the code generation process. It creates insecure temporary files to store the OpenAPI specification files provided by the users and these temporary files can be read by any users in the system.

The impact of this vulnerability is information disclosure of the contents of the specification file to other local users.

Patches

The issue has been patched with Files.createTempFile and released in the v5.1.0 stable version.

For more information

If you have any questions or comments about this advisory: * Open an issue in OpenAPI Generator Github repo * Email us at security@openapitools.org

Severity
4.0 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Show details on source website
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.openapitools:openapi-generator-maven-plugin"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-21429"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-377",
      "CWE-378",
      "CWE-379",
      "CWE-552"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-04-27T19:58:51Z",
    "nvd_published_at": "2021-04-27T20:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nUsing `File.createTempFile` in JDK will result in creating and using insecure temporary files that can leave application and system data vulnerable to attacks. This vulnerability only impacts unix-like systems where the local system temporary directory is shared between all users. This vulnerability does not impact Windows or modern versions of MacOS.\n\nOpenAPI Generator Maven plug-in creates insecure temporary files during the code generation process. It creates insecure temporary files to store the OpenAPI specification files provided by the users and these temporary files can be read by any users in the system.\n\nThe impact of this vulnerability is information disclosure of the contents of the specification file to other local users.\n\n### Patches\nThe issue has been patched with `Files.createTempFile` and released in the v5.1.0 stable version.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [OpenAPI Generator Github repo](https://github.com/openAPITools/openapi-generator/)\n* Email us at [security@openapitools.org](mailto:security@openapitools.org)",
  "id": "GHSA-867q-77cc-98mv",
  "modified": "2021-05-10T19:29:52Z",
  "published": "2021-04-29T21:51:37Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/OpenAPITools/openapi-generator/security/advisories/GHSA-867q-77cc-98mv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21429"
    },
    {
      "type": "WEB",
      "url": "https://github.com/OpenAPITools/openapi-generator/pull/8795"
    },
    {
      "type": "WEB",
      "url": "https://github.com/OpenAPITools/openapi-generator/blob/06ad7a51eff04393203cfa715e54e1fb59d984fe/modules/openapi-generator-maven-plugin/src/main/java/org/openapitools/codegen/plugin/CodeGenMojo.java#L782-L799"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Creation of Temporary File in Directory with Insecure Permissions in the OpenAPI Generator Maven plugin"
}

GHSA-8QFM-HC68-VJ3G

Vulnerability from github – Published: 2022-05-24 19:01 – Updated: 2022-05-24 19:01
VLAI
Details

Multiple vulnerabilities in the install, uninstall, and upgrade processes of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to hijack DLL or executable files that are used by the application. A successful exploit could allow the attacker to execute arbitrary code on an affected device with SYSTEM privileges. To exploit these vulnerabilities, the attacker must have valid credentials on the Windows system. For more information about these vulnerabilities, see the Details section of this advisory.

Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2021-1429"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-378",
      "CWE-427"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-05-06T13:15:00Z",
    "severity": "HIGH"
  },
  "details": "Multiple vulnerabilities in the install, uninstall, and upgrade processes of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to hijack DLL or executable files that are used by the application. A successful exploit could allow the attacker to execute arbitrary code on an affected device with SYSTEM privileges. To exploit these vulnerabilities, the attacker must have valid credentials on the Windows system. For more information about these vulnerabilities, see the Details section of this advisory.",
  "id": "GHSA-8qfm-hc68-vj3g",
  "modified": "2022-05-24T19:01:36Z",
  "published": "2022-05-24T19:01:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-1429"
    },
    {
      "type": "WEB",
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-code-exec-jR3tWTA6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-92RR-C628-3G33

Vulnerability from github – Published: 2025-08-06 21:31 – Updated: 2025-08-06 21:31
VLAI
Details

Dell SupportAssist OS Recovery, versions prior to 5.5.14.0, contain a Creation of Temporary File With Insecure Permissions vulnerability. A local authenticated attacker could potentially exploit this vulnerability, leading to Elevation of Privileges.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-38747"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-378"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-06T20:15:28Z",
    "severity": "HIGH"
  },
  "details": "Dell SupportAssist OS Recovery, versions prior to 5.5.14.0, contain a Creation of Temporary File With Insecure Permissions vulnerability. A local authenticated attacker could potentially exploit this vulnerability, leading to Elevation of Privileges.",
  "id": "GHSA-92rr-c628-3g33",
  "modified": "2025-08-06T21:31:39Z",
  "published": "2025-08-06T21:31:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38747"
    },
    {
      "type": "WEB",
      "url": "https://www.dell.com/support/kbdoc/en-us/000353093/dsa-2025-315"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}
Mitigation
Requirements

Many contemporary languages have functions which properly handle this condition. Older C temp file functions are especially susceptible.

Mitigation
Implementation

Ensure that you use proper file permissions. This can be achieved by using a safe temp file function. Temporary files should be writable and readable only by the process that owns the file.

Mitigation
Implementation

Randomize temporary file names. This can also be achieved by using a safe temp-file function. This will ensure that temporary files will not be created in predictable places.

No CAPEC attack patterns related to this CWE.

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