CVE-2018-20483
7.8
HIGH
CVSS 3.1
EPSS 0.66%
描述
set_file_metadata in xattr.c in GNU Wget before 1.20.1 stores a file's origin URL in the user.xdg.origin.url metadata attribute of the extended attributes of the downloaded file, which allows local users to obtain sensitive information (e.g., credentials contained in the URL) by reading this attribute, as demonstrated by getfattr. This also applies to Referer information in the user.xdg.referrer.url metadata attribute. According to 2016-07-22 in the Wget ChangeLog, user.xdg.origin.url was partially based on the behavior of fwrite_xattr in tool_xattr.c in curl.
如何修補 CVE-2018-20483
要修補 CVE-2018-20483,請將受影響套件升級到下列已修補版本。
- —升級至 1.20.1-r0 或更新版本
- —升級至 1.20.1-1 或更新版本
CVE-2018-20483 正在被利用嗎?
低 — EPSS 為 0.7%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 1.20.1-r0
- from 0, < 1.20.1-1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |