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CVE-2023-45237— Use of a Weak PseudoRandom Number Generator in EDK II Network Package

Quick assessment

Affected
TianoCore edk2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

EDK2是Tianocore社区的一套基于UEFI和PI规范的跨平台固件开发环境。 EDK2 存在安全漏洞，该漏洞源于 Network Package 容易受到可预测的 TCP 初始序列号的影响。

CVSS 5.3 · Medium EPSS 0.99% · P61

Possible ATT&CK Techniques 1 AI

T1498 · Network Denial of Service
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I. Basic Information for CVE-2023-45237

Vulnerability Information
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Vulnerability Title
Use of a Weak PseudoRandom Number Generator in EDK II Network Package
Source: CVE Program / CVE List V5
Vulnerability Description
EDK2's Network Package is susceptible to a predictable TCP Initial Sequence Number. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用具有密码学弱点缺陷的PRNG
Source: CVE Program / CVE List V5
Vulnerability Title
EDK2 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
EDK2是Tianocore社区的一套基于UEFI和PI规范的跨平台固件开发环境。 EDK2 存在安全漏洞，该漏洞源于 Network Package 容易受到可预测的 TCP 初始序列号的影响。
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
TianoCore edk2 edk2-stable202308 -

II. Public POCs for CVE-2023-45237

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III. Intelligence Information for CVE-2023-45237

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Vendor Advisories for CVE-2023-45237 (2)

Mailing List Discussions for CVE-2023-45237 (1)

Same Patch Batch · TianoCore · 2024-01-16 · 9 CVEs total

CVE-2023-45230 8.3 HIGH Buffer Overflow in EDK II Network Package
CVE-2023-45234 8.3 HIGH Buffer Overflow in EDK II Network Package
CVE-2023-45235 8.3 HIGH Buffer Overflow in EDK II Network Package
CVE-2023-45232 7.5 HIGH Infinite loop in EDK II Network Package
CVE-2023-45233 7.5 HIGH Infinite loop in EDK II Network Package
CVE-2023-45229 6.5 MEDIUM Out-of-Bounds Read in EDK II Network Package
CVE-2023-45231 6.5 MEDIUM Out-of-Bounds Read in EDK II Network Package
CVE-2023-45236 5.8 MEDIUM Predictable TCP ISNs in EDK II Network Package

IV. Related Vulnerabilities

Same product: edk2
Same vendor: TianoCore
Same weakness: CWE-338

V. Comments for CVE-2023-45237

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