جزئیات آسیبپذیری
CVE-2026-88018
rclone serve s3: --auth-proxy without --auth-key authenticates nobody - full SigV4 signature bypass
شرح رسمی (انگلیسی)
rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, rclone serve s3 configured with --auth-proxy but without --auth-key allows authPairMiddleware to register any client-chosen accessKeyID with an empty ws.s3Secret. gofakes3 then verifies the request’s SigV4 signature against that same empty secret, while Server.auth passes the access key identifier as both the user and authentication value to the proxy without an independent per-identity secret. An unauthenticated network attacker can therefore choose an arbitrary access key, sign with an empty secret, and reach whatever backend the auth-proxy script resolves for that identity. This issue is fixed in version 1.75.1.
امتیازهای CVSS
| امتیاز | نسخه | منبع | بردار |
|---|---|---|---|
| 9.8بحرانی | 3.1 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
محصولات آسیبپذیر
| فروشنده | محصول | نسخهها | منبع |
|---|---|---|---|
| rclone | rclone | < 1.75.1 | CVEProject cvelistV5 (CNA) |
منابع و راهنماها
۳- https://github.com/rclone/rclone/commit/90595f34f27f569be6b27c57fe5ab65057d323bd x_refsource_MISC
- https://github.com/rclone/rclone/releases/tag/v1.75.1 x_refsource_MISC
- https://github.com/rclone/rclone/security/advisories/GHSA-xwwr-4h3p-r22c x_refsource_CONFIRM
اطلاعات
- تاریخ انتشار
- ۱۴۰۵/۰۶/۱۹
- آخرین بهروزرسانی
- ۱۴۰۵/۰۶/۱۹
- وضعیت
- منتشرشده
- صادرکننده (CNA)
- GitHub_M
پیشبینی بهرهبرداری (EPSS)
ارزیابی SSVC (CISA)
- قابل خودکارسازی
- بله
- وضعیت بهرهبرداری
- اثبات مفهوم
- اثر فنی
- کامل
ضعفها (CWE)
- CWE-287Improper Authentication
- CWE-306Missing Authentication for Critical Function