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CVE-2024-40719— CHANGING Information Technology TCBServiSign Windows Version - Inadequate Encryption Strength

Quick assessment

Affected
CHANGING Information Technology TCBServiSign Windows Version
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.

Changing TCBServiSign是中国Changing公司的一个跨平台安控元件。 Changing TCBServiSign 1.0.24.0318之前版本存在加密问题漏洞，该漏洞源于授权密钥的加密强度不足，远程攻击者可诱骗用户访问恶意网站进行攻击。

CVSS 6.5 · Medium EPSS 0.18% · P7
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I. Basic Information for CVE-2024-40719

Vulnerability Information
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Vulnerability Title
CHANGING Information Technology TCBServiSign Windows Version - Inadequate Encryption Strength
Source: CVE Program / CVE List V5
Vulnerability Description
The encryption strength of the authorization keys in CHANGING Information Technology TCBServiSign Windows Version is insufficient. When a remote attacker tricks a victim into visiting a malicious website, TCBServiSign will treat that website as a legitimate server and interact with it.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的加密强度
Source: CVE Program / CVE List V5
Vulnerability Title
Changing TCBServiSign 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Changing TCBServiSign是中国Changing公司的一个跨平台安控元件。 Changing TCBServiSign 1.0.24.0318之前版本存在加密问题漏洞，该漏洞源于授权密钥的加密强度不足，远程攻击者可诱骗用户访问恶意网站进行攻击。
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
CHANGING Information Technology TCBServiSign Windows Version 0 ~ 1.0.24.0318 -

II. Public POCs for CVE-2024-40719

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III. Intelligence Information for CVE-2024-40719

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Vendor Advisories for CVE-2024-40719 (2)

Same Patch Batch · CHANGING Information Technology · 2024-08-02 · 5 CVEs total

CVE-2024-40720 8.8 HIGH CHANGING Information Technology TCBServiSign Windows Version - Improper Input Validation
CVE-2024-40721 8.8 HIGH CHANGING Information Technology TCBServiSign Windows Version - Improper Input Validation
CVE-2024-40722 4.3 MEDIUM CHANGING Information Technology TCBServiSign Windows Version - Stack-based Buffer Overflow
CVE-2024-40723 4.3 MEDIUM CHANGING Information Technology HWATAIServiSign Windows Version - Stack-based Buffer Overf

IV. Related Vulnerabilities

Same product: TCBServiSign Windows Version
Same vendor: CHANGING Information Technology
Same weakness: CWE-326

V. Comments for CVE-2024-40719

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