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CVE-2021-21100— Adobe Digital Editions Arbitrary file system write vulnerability

Quick assessment

Affected
Adobe Digital Editions
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 Digital Editions（DE）是美国奥多比（Adobe）公司的一套电子书阅读管理软件。该软件支持打开、阅读和管理PDF、XML、Flash等格式的文件。 Adobe Digital Editions 存在安全漏洞，该漏洞允许远程攻击者获得系统上更高的特权。

CVSS 7.8 · High EPSS 1.72% · P77
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I. Basic Information for CVE-2021-21100

Vulnerability Information
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Vulnerability Title
Adobe Digital Editions Arbitrary file system write vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Adobe Digital Editions version 4.5.11.187245 (and earlier) is affected by a Privilege Escalation vulnerability during installation. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary file system write 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
在具有不安全权限的目录中创建临时文件
Source: CVE Program / CVE List V5
Vulnerability Title
Adobe Digital Editions 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Adobe Digital Editions（DE）是美国奥多比（Adobe）公司的一套电子书阅读管理软件。该软件支持打开、阅读和管理PDF、XML、Flash等格式的文件。 Adobe Digital Editions 存在安全漏洞，该漏洞允许远程攻击者获得系统上更高的特权。
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 Digital Editions unspecified ~ 4.5.11.187245 -

II. Public POCs for CVE-2021-21100

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III. Intelligence Information for CVE-2021-21100

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Vendor Advisories for CVE-2021-21100 (1)

Same Patch Batch · Adobe · 2021-04-15 · 10 CVEs total

CVE-2021-21094 Adobe Bridge PDF File Parsing Out-Of-Bounds Write vulnerability could lead to arbitrary co
CVE-2021-21096 Adobe Bridge Genuine Software Service Incorrect Permission Assignment could lead to Denial
CVE-2021-21093 Adobe Bridge SGI File Parsing Memory Corruption vulnerability could lead to arbitrary code
CVE-2021-21095 Adobe Bridge TTF Font Parsing Out-Of-Bounds Write vulnerability could lead to arbitrary co
CVE-2021-28549 Adobe Photoshop parsing JS buffer overflow vulnerability could lead to arbitrary code exec
CVE-2021-21091 Adobe Bridge HEIC File Parsing Out-Of-Bounds Read vulnerability could lead to information
CVE-2021-21092 Adobe Bridge DCM File Parsing Memory Corruption could lead to arbitrary code execution
CVE-2021-21087 ColdFusion Improper neutralization of web input during page generation could lead to arbit
CVE-2021-28548 Adobe Photoshop parsing JS buffer overflow vulnerability could lead to arbitrary code exec

IV. Related Vulnerabilities

Same product: Digital Editions
Same vendor: Adobe
Same weakness: CWE-379

V. Comments for CVE-2021-21100

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