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CVE-2021-40724— Adobe Acrobat Reader Android Abritrary Code Execution Vulnerability

Quick assessment

Affected
Adobe Reader Mobile
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Adobe Acrobat Reader是美国奥多比（Adobe）公司的一款PDF查看器。该软件用于打印，签名和注释 PDF。 Adobe Acrobat Reader 中存在路径遍历漏洞，该漏洞源于产品在运行过程中存在配置等错误。未授权的攻击者可利用漏洞获取受影响组件敏感信息。以下产品及版本受到影响：Adobe Acrobat Reader for Android 21.8.0 版本及之前版本，Adobe Reader Mobile Android(7.0及之前平台) 21.9.0 版本。

CVSS 7.8 · High EPSS 3.57% · P88
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I. Basic Information for CVE-2021-40724

Vulnerability Information
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Vulnerability Title
Adobe Acrobat Reader Android Abritrary Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Acrobat Reader for Android versions 21.8.0 (and earlier) are affected by a Path traversal vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Adobe Acrobat Reader 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Adobe Acrobat Reader是美国奥多比（Adobe）公司的一款PDF查看器。该软件用于打印，签名和注释 PDF。 Adobe Acrobat Reader 中存在路径遍历漏洞，该漏洞源于产品在运行过程中存在配置等错误。未授权的攻击者可利用漏洞获取受影响组件敏感信息。以下产品及版本受到影响：Adobe Acrobat Reader for Android 21.8.0 版本及之前版本，Adobe Reader Mobile Android(7.0及之前平台) 21.9.0 版本。
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 Reader Mobile unspecified ~ 21.8.0 -

II. Public POCs for CVE-2021-40724

# POC Description Source Link Shenlong Link
1 This is an Exploit App I made when solving the DocumentViewer challenge (CVE-2021-40724) from MobileHackingLab. It will download a libdocviewe_pro.so library from your local machine unto the vulnerable app's internal storage, load it upon relaunch and achieve an RCE. https://github.com/tinopreter/DocViewerExploitApp POC Details
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III. Intelligence Information for CVE-2021-40724

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Vendor Advisories for CVE-2021-40724 (1)

Same Patch Batch · Adobe · 2021-10-15 · 8 CVEs total

CVE-2021-40720 9.8 CRITICAL Ops CLI Deserialization of Untrusted Data leads to Abritrary Code Execution
CVE-2021-40728 7.8 HIGH Adobe Acrobat Reader DC Use After Free Arbitrary Code Execution
CVE-2021-39864 6.5 MEDIUM Adobe Commerce Cross-Site Request Forgery (CSRF) Could Lead To Unauthorized Cart Addition
CVE-2021-40721 6.1 MEDIUM Adobe Connect Reflected Cross Site Scripting
CVE-2021-40729 3.3 LOW Adobe Acrobat Reader DC PDF Out-of-Bound Read Vulnerability Information Disclosure
CVE-2021-40731 Adobe Acrobat Reader DC JPEG2000 Parsing Out-Of-Bounds Write Remote Code Execution Vulnera
CVE-2021-40730 Adobe Acrobat Reader DC JPEG2000 Parsing Use-After-Free Information Disclosure Vulnerabili

IV. Related Vulnerabilities

Same vendor: Adobe
Same weakness: CWE-22

V. Comments for CVE-2021-40724

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