CVE-2019-6111
openssh - security update
5.9
MEDIUM
CVSS 3.1
EPSS 58.2%
描述
An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the scp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file).
如何修補 CVE-2019-6111
要修補 CVE-2019-6111,請將受影響套件升級到下列已修補版本。
- —升級至 2025.89-r0 或更新版本
- —升級至 7.9_p1-r3 或更新版本
- —升級至 1:7.9p1-9 或更新版本
- —升級至 1:7.4p1-10+deb9u6 或更新版本
CVE-2019-6111 正在被利用嗎?
可能 — EPSS 為 58.2%,屬於高被利用機率區間,建議優先修補。
受影響套件(4)
- from 0, < 2025.89-r0
- from 0, < 7.9_p1-r3
- from 0, < 1:7.9p1-9
- from 0, < 1:7.4p1-10+deb9u6
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |