CVE-2024-38519

2024-07-0214:15:13

CWE-669

GitHub_M

web.nvd.nist.gov

yt-dlp security issue

arbitrary file download

code execution

file extension whitelist

software upgrade

secure download locations

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

Percentile

13.2%

JSON

yt-dlp and youtube-dl are command-line audio/video downloaders. Prior to the fixed versions, yt-dlp and youtube-dl do not limit the extensions of downloaded files, which could lead to arbitrary filenames being created in the download folder (and path traversal on Windows). Since yt-dlp and youtube-dl also read config from the working directory (and on Windows executables will be executed from the yt-dlp or youtube-dl directory), this could lead to arbitrary code being executed.

yt-dlp version 2024.07.01 fixes this issue by whitelisting the allowed extensions. youtube-dl fixes this issue in commit d42a222 on the master branch and in nightly builds tagged 2024-07-03 or later. This might mean some very uncommon extensions might not get downloaded, however it will also limit the possible exploitation surface. In addition to upgrading, have .%(ext)s at the end of the output template and make sure the user trusts the websites that they are downloading from. Also, make sure to never download to a directory within PATH or other sensitive locations like one’s user directory, system32, or other binaries locations. For users who are not able to upgrade, keep the default output template (-o "%(title)s [%(id)s].%(ext)s); make sure the extension of the media to download is a common video/audio/sub/… one; try to avoid the generic extractor; and/or use --ignore-config --config-location ... to not load config from common locations.

Affected configurations

Vulners

Vulnrichment

Node

yt-dlpyt_dlpRange<2024.07.01

ytdl-orgyoutube_dlRange≤2021.12.17

ytdl-orgyoutube_dlRange<2024-07-03

VendorProductVersionCPE
yt-dlpyt_dlp*cpe:2.3:a:yt-dlp:yt_dlp:*:*:*:*:*:*:*:*
ytdl-orgyoutube_dl*cpe:2.3:a:ytdl-org:youtube_dl:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
yt-dlp	yt_dlp	*	cpe:2.3:a:yt-dlp:yt_dlp::::::::
ytdl-org	youtube_dl	*	cpe:2.3:a:ytdl-org:youtube_dl::::::::

CNA Affected

[
  {
    "product": "yt-dlp",
    "vendor": "yt-dlp",
    "versions": [
      {
        "lessThan": "2024.07.01",
        "status": "affected",
        "versionType": "date",
        "version": "< 2024.07.01"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "youtube-dl",
    "repo": "https://github.com/ytdl-org/youtube-dl",
    "vendor": "ytdl-org",
    "versions": [
      {
        "lessThanOrEqual": "2021.12.17",
        "status": "affected",
        "version": ">= 2015.01.25",
        "versionType": "date"
      },
      {
        "changes": [
          {
            "at": "d42a222",
            "status": "unaffected"
          }
        ],
        "lessThan": "2024-07-03",
        "status": "affected",
        "version": "nightly",
        "versionType": "date"
      }
    ]
  }
]