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CVE-2020-27349— aptdaemon performed policykit permissions checks too late

Quick assessment

Affected
Canonical aptdaemon
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.

Aptdaemon是个人开发者的一个pypi的代码库。该库函数允许在 DBus 控制的背景进程中执行包管理任务。 Aptdaemon 存在安全漏洞，攻击者可利用该漏洞可以通过对Aptdaemon的Policykit检查触发致命错误，从而触发拒绝服务。

AI Predicted 5.6 Difficulty: Moderate EPSS 0.29% · P20

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2020-27349

Vulnerability Information
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Vulnerability Title
aptdaemon performed policykit permissions checks too late
Source: CVE Program / CVE List V5
Vulnerability Description
Aptdaemon performed policykit checks after interacting with potentially untrusted files with elevated privileges. This affected versions prior to 1.1.1+bzr982-0ubuntu34.1, 1.1.1+bzr982-0ubuntu32.3, 1.1.1+bzr982-0ubuntu19.5, 1.1.1+bzr982-0ubuntu14.5.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Aptdaemon 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Aptdaemon是个人开发者的一个pypi的代码库。该库函数允许在 DBus 控制的背景进程中执行包管理任务。 Aptdaemon 存在安全漏洞，攻击者可利用该漏洞可以通过对Aptdaemon的Policykit检查触发致命错误，从而触发拒绝服务。
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
Canonical aptdaemon 1.1.1+bzr982-0ubuntu14 ~ 1.1.1+bzr982-0ubuntu14.5 -

II. Public POCs for CVE-2020-27349

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III. Intelligence Information for CVE-2020-27349

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Vendor Advisories for CVE-2020-27349 (1)

IV. Related Vulnerabilities

Same product: aptdaemon
Same vendor: Canonical
Same weakness: CWE-862

V. Comments for CVE-2020-27349

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