CVE-2020-8912
In-band key negotiation issue in AWS S3 Crypto SDK for golang in github.com/aws/aws-sdk-go
2.5
LOW
CVSS 3.1
EPSS 0.23%
描述
A vulnerability in the in-band key negotiation exists in the AWS S3 Crypto SDK for GoLang versions prior to V2. An attacker with write access to the targeted bucket can change the encryption algorithm of an object in the bucket, which can then allow them to change AES-GCM to AES-CTR. Using this in combination with a decryption oracle can reveal the authentication key used by AES-GCM as decrypting the GMAC tag leaves the authentication key recoverable as an algebraic equation. It is recommended to update your SDK to V2 or later, and re-encrypt your files.
如何修補 CVE-2020-8912
要修補 CVE-2020-8912,請將受影響套件升級到下列已修補版本。
- —升級至 1.34.0 或更新版本
- —未列出修補版本
CVE-2020-8912 正在被利用嗎?
低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 1.34.0
- from 0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | LOW2.5 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N |