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CVE-2021-28546— Acrobat Reader DC Missing Support for Integrity Check

Quick assessment

Affected
Adobe Acrobat Reader
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.

Adobe Acrobat and Reader DC是美国Adobe公司的有一个PDF创建程序。提供了一个PDF 创建程序。 Acrobat Reader DC versions versions 2020.013.20074 (and earlier) 存在安全漏洞，攻击者可利用该漏洞修改经过认证的PDF中的内容，而不会使证书失效。

CVSS 6.5 · Medium EPSS 1.42% · P72

Possible ATT&CK Techniques 1 AI

T1553.005 · Mark-of-the-Web Bypass
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I. Basic Information for CVE-2021-28546

Vulnerability Information
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Vulnerability Title
Acrobat Reader DC Missing Support for Integrity Check
Source: CVE Program / CVE List V5
Vulnerability Description
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are missing support for an integrity check. An unauthenticated attacker could leverage this vulnerability to modify content in a certified PDF without invalidating the certification. Exploitation of this issue requires user interaction in that a victim must open the tampered file.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
缺失完整性检查支持
Source: CVE Program / CVE List V5
Vulnerability Title
Adobe Acrobat Reader DC 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Adobe Acrobat and Reader DC是美国Adobe公司的有一个PDF创建程序。提供了一个PDF 创建程序。 Acrobat Reader DC versions versions 2020.013.20074 (and earlier) 存在安全漏洞，攻击者可利用该漏洞修改经过认证的PDF中的内容，而不会使证书失效。
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
Adobe Acrobat Reader unspecified ~ 2020.013.20074 -

II. Public POCs for CVE-2021-28546

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III. Intelligence Information for CVE-2021-28546

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Vendor Advisories for CVE-2021-28546 (1)

IV. Related Vulnerabilities

Same product: Acrobat Reader
Same vendor: Adobe
Same weakness: CWE-353

V. Comments for CVE-2021-28546

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