CVE-2023-35934— yt-dlp 信息泄露漏洞
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一、 漏洞 CVE-2023-35934 基础信息
漏洞信息
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Vulnerability Title
yt-dlp File Downloader cookie leak
来源: CVE Program / CVE List V5
Vulnerability Description
yt-dlp is a command-line program to download videos from video sites. During file downloads, yt-dlp or the external downloaders that yt-dlp employs may leak cookies on HTTP redirects to a different host, or leak them when the host for download fragments differs from their parent manifest's host. This vulnerable behavior is present in yt-dlp prior to 2023.07.06 and nightly 2023.07.06.185519. All native and external downloaders are affected, except for `curl` and `httpie` (version 3.1.0 or later). At the file download stage, all cookies are passed by yt-dlp to the file downloader as a `Cookie` header, thereby losing their scope. This also occurs in yt-dlp's info JSON output, which may be used by external tools. As a result, the downloader or external tool may indiscriminately send cookies with requests to domains or paths for which the cookies are not scoped. yt-dlp version 2023.07.06 and nightly 2023.07.06.185519 fix this issue by removing the `Cookie` header upon HTTP redirects; having native downloaders calculate the `Cookie` header from the cookiejar, utilizing external downloaders' built-in support for cookies instead of passing them as header arguments, disabling HTTP redirectiong if the external downloader does not have proper cookie support, processing cookies passed as HTTP headers to limit their scope, and having a separate field for cookies in the info dict storing more information about scoping Some workarounds are available for those who are unable to upgrade. Avoid using cookies and user authentication methods. While extractors may set custom cookies, these usually do not contain sensitive information. Alternatively, avoid using `--load-info-json`. Or, if authentication is a must: verify the integrity of download links from unknown sources in browser (including redirects) before passing them to yt-dlp; use `curl` as external downloader, since it is not impacted; and/or avoid fragmented formats such as HLS/m3u8, DASH/mpd and ISM.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
信息暴露
来源: CVE Program / CVE List V5
Vulnerability Title
yt-dlp 信息泄露漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
yt-dlp是基于现在不活动的youtube-dlc 的youtube-dl分支。 yt-dlp 2023.07.06 版本之前存在信息泄露漏洞，该漏洞源于该应用使用的外部下载器可能会在 HTTP 重定向到其他主机时泄漏 cookie。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2023-35934 的公开POC
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CVE-2023-35934 补丁与修复 (3)
CVE-2023-35934 厂商安全公告 (1)
- https://github.com/yt-dlp/yt-dlp/security/advisories/GHSA-v8mc-9377-rwjjx_refsource_CONFIRM
CVE-2023-35934 邮件列表归档 (4)
CVE-2023-35934 其他参考 (2)
- https://github.com/yt-dlp/yt-dlp/releases/tag/2023.07.06x_refsource_MISC
IV. Related Vulnerabilities
V. Comments for CVE-2023-35934
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