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CVE-2023-31176— Insufficient entropy vulnerability could lead to authentication bypass

Quick assessment

Affected
Schweitzer Engineering Laboratories SEL-451
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.

Schweitzer Engineering Laboratories SEL-451是美国Schweitzer Engineering Laboratories公司的一个完整的独立系统。 Schweitzer Engineering Laboratories SEL-451存在安全漏洞，该漏洞源于存在熵不足漏洞，可能允许未经身份验证的远程攻击者暴力破解会话令牌并绕过身份验证。

CVSS 7.5 · High EPSS 0.93% · P59

Possible ATT&CK Techniques 1 AI

T1110 · Brute Force
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I. Basic Information for CVE-2023-31176

Vulnerability Information
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Vulnerability Title
Insufficient entropy vulnerability could lead to authentication bypass
Source: CVE Program / CVE List V5
Vulnerability Description
An Insufficient Entropy vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow an unauthenticated remote attacker to brute-force session tokens and bypass authentication.  See product Instruction Manual Appendix A dated 20230830 for more details.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息熵不充分
Source: CVE Program / CVE List V5
Vulnerability Title
Schweitzer Engineering Laboratories SEL-451 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Schweitzer Engineering Laboratories SEL-451是美国Schweitzer Engineering Laboratories公司的一个完整的独立系统。 Schweitzer Engineering Laboratories SEL-451存在安全漏洞，该漏洞源于存在熵不足漏洞，可能允许未经身份验证的远程攻击者暴力破解会话令牌并绕过身份验证。
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
Schweitzer Engineering Laboratories SEL-451 R315-V0 ~ R315-V4 -

II. Public POCs for CVE-2023-31176

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III. Intelligence Information for CVE-2023-31176

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Security Blog Posts for CVE-2023-31176 (1)

Other References for CVE-2023-31176 (1)

Same Patch Batch · Schweitzer Engineering Laboratories · 2023-11-30 · 9 CVEs total

CVE-2023-34388 6.5 MEDIUM Improper authentication could lead to session hijacking
CVE-2023-34389 4.5 MEDIUM Allocation of resources without limits could lead to denial of service
CVE-2023-34390 4.5 MEDIUM Improper input validation could lead to denial of service
CVE-2023-2265 4.3 MEDIUM Improper restriction of rendered UI layers or frames could lead to clickjacking attack
CVE-2023-2266 4.3 MEDIUM Improper neutralization of input during web page generation could lead to cross-site scrip
CVE-2023-2267 4.3 MEDIUM Improper input validation could lead to reflection injection attacks
CVE-2023-31177 4.3 MEDIUM Improper neutralizataion of input could lead to execution of arbitrary code
CVE-2023-2264 4.0 MEDIUM Improper input validition could lead to code injection

IV. Related Vulnerabilities

Same product: SEL-451
Same vendor: Schweitzer Engineering Laboratories
Same weakness: CWE-331

V. Comments for CVE-2023-31176

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