CVE-2023-43637— Vault Key Partially Predetermined
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I. Basic Information for CVE-2023-43637
Vulnerability Information
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Vulnerability Title
Vault Key Partially Predetermined
Source: NVD (National Vulnerability Database)
Vulnerability Description
Due to the implementation of "deriveVaultKey", prior to version 7.10, the generated vault key would always have the last 16 bytes predetermined to be "arfoobarfoobarfo". This issue happens because "deriveVaultKey" calls "retrieveCloudKey" (which will always return "foobarfoobarfoobarfoobarfoobarfo" as the key), and then merges the 32byte randomly generated key with this key (by takeing 16bytes from each, see "mergeKeys"). This makes the key a lot weaker. This issue does not persist in devices that were initialized on/after version 7.10, but devices that were initialized before that and updated to a newer version still have this issue. Roll an update that enforces the full 32bytes key usage.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用硬编码的密码学密钥
Source: NVD (National Vulnerability Database)
Vulnerability Title
EVE OS 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
EVE OS是IF Edge开源的一个用于分布式边缘计算的通用、开放的基于 Linux 的操作系统。 EVE OS 7.10 之前版本存在安全漏洞，该漏洞源于deriveVaultKey将保管库密钥的最后16个字节预先确定为arfoobarfoobarfo，导致密钥安全性降低。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| LF-Edge, Zededa | EVE OS | 0 ~ 7.10 | - |
II. Public POCs for CVE-2023-43637
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · LF-Edge, Zededa · 2023-09-21 · 5 CVEs total
| CVE-2023-43632 | 9.0 CRITICAL | Freely Allocate Buffer on The Stack With Data From Socket |
| CVE-2023-43634 | 8.8 HIGH | Config Partition Not Protected by Measured Boot |
| CVE-2023-43633 | 8.8 HIGH | Debug Functions Unlockable Without Triggering Measured Boot |
| CVE-2023-43631 | 8.8 HIGH | SSH as Root Unlockable Without Triggering Measured Boot |
IV. Related Vulnerabilities
Same product: EVE OS
- CVE-2023-43631
SSH as Root Unlockable Without Triggering Measured Boot - CVE-2023-43632
Freely Allocate Buffer on The Stack With Data From Socket - CVE-2023-43633
Debug Functions Unlockable Without Triggering Measured Boot - CVE-2023-43634
Config Partition Not Protected by Measured Boot - CVE-2023-43635
Vault Key Sealed With SHA1 PCRs
Same vendor: LF-Edge, Zededa
- CVE-2023-43631
SSH as Root Unlockable Without Triggering Measured Boot - CVE-2023-43632
Freely Allocate Buffer on The Stack With Data From Socket - CVE-2023-43633
Debug Functions Unlockable Without Triggering Measured Boot - CVE-2023-43634
Config Partition Not Protected by Measured Boot - CVE-2023-43635
Vault Key Sealed With SHA1 PCRs
Same weakness: CWE-321
- CVE-2026-8243
Industrial Application Software IAS Canias ERP JNLP Deployme - CVE-2026-6787
Usage of a hard-coded cryptographic key in WatchGuard Agent - CVE-2026-42518
Information Disclosure Vulnerability in e-Sushrut HMIS - CVE-2026-7306
Xuxueli xxl-job OpenAPI Endpoint OpenApiController.java hard - CVE-2026-32644
Milesight Cameras Use of Hard-coded Cryptographic Key
V. Comments for CVE-2023-43637
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