CVE-2023-27535
5.9
MEDIUM
CVSS 3.1
EPSS 1.6%
描述
An authentication bypass vulnerability exists in libcurl <8.0.0 in the FTP connection reuse feature that can result in wrong credentials being used during subsequent transfers. Previously created connections are kept in a connection pool for reuse if they match the current setup. However, certain FTP settings such as CURLOPT_FTP_ACCOUNT, CURLOPT_FTP_ALTERNATIVE_TO_USER, CURLOPT_FTP_SSL_CCC, and CURLOPT_USE_SSL were not included in the configuration match checks, causing them to match too easily. This could lead to libcurl using the wrong credentials when performing a transfer, potentially allowing unauthorized access to sensitive information.
如何修補 CVE-2023-27535
要修補 CVE-2023-27535,請將受影響套件升級到下列已修補版本。
- —升級至 8.0.1-r0 或更新版本
- —升級至 7.74.0-1.3+deb11u8 或更新版本
CVE-2023-27535 正在被利用嗎?
低 — EPSS 為 1.6%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 8.0.1-r0
- from 0, < 7.74.0-1.3+deb11u8
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:H/I:N/A:N |