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CVE-2020-36923— Sony BRAVIA Digital Signage 1.7.8 Client-Side Protection Bypass via IDOR

Quick assessment

Affected
Sony Electronics Inc. Sony BRAVIA Digital Signage
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.

Sony BRAVIA Digital Signage是日本索尼（Sony）公司的一套数字标牌系统。 Sony BRAVIA Digital Signage 1.7.8版本存在安全漏洞，该漏洞源于存在不安全的直接对象引用漏洞，可能导致绕过授权控制并访问隐藏的系统资源。

CVSS 9.8 · Critical EPSS 0.96% · P59

Possible ATT&CK Techniques 1 AI

T1528 · Steal Application Access Token
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I. Basic Information for CVE-2020-36923

Vulnerability Information
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Vulnerability Title
Sony BRAVIA Digital Signage 1.7.8 Client-Side Protection Bypass via IDOR
Source: CVE Program / CVE List V5
Vulnerability Description
Sony BRAVIA Digital Signage 1.7.8 contains an insecure direct object reference vulnerability that allows attackers to bypass authorization controls. Attackers can access hidden system resources like '/#/content-creation' by manipulating client-side access restrictions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
Sony BRAVIA Digital Signage 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sony BRAVIA Digital Signage是日本索尼（Sony）公司的一套数字标牌系统。 Sony BRAVIA Digital Signage 1.7.8版本存在安全漏洞，该漏洞源于存在不安全的直接对象引用漏洞，可能导致绕过授权控制并访问隐藏的系统资源。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Sony Electronics Inc. Sony BRAVIA Digital Signage <=1.7.8 -

II. Public POCs for CVE-2020-36923

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III. Intelligence Information for CVE-2020-36923

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Vendor Advisories for CVE-2020-36923 (1)

Exploits & Public PoCs for CVE-2020-36923 (2)

Other References for CVE-2020-36923 (5)

IV. Related Vulnerabilities

Same product: Sony BRAVIA Digital Signage
Same vendor: Sony Electronics Inc.
Same weakness: CWE-639

V. Comments for CVE-2020-36923

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