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CVE-2021-3560

Quick assessment

Affected
n/a polkit
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

polkit是一个在类 Unix操作系统中控制系统范围权限的组件。通过定义和审核权限规则，实现不同优先级进程间的通讯。 polkit 存在代码问题漏洞，该漏洞源于当请求进程在调用polkit_system_bus_name_get_creds_sync之前断开与dbus-daemon的连接时，该进程无法获得进程的唯一uid和pid，也无法验证请求进程的特权。

AI Predicted 7.8 Difficulty: Moderate KEV EPSS 22.19% · P97

Public Exploits 2

ExploitDB · 1 EDB-50011 [local]
Metasploit · 1 polkit_dbus_auth_bypass.rb [exploit]
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I. Basic Information for CVE-2021-3560

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
It was found that polkit could be tricked into bypassing the credential checks for D-Bus requests, elevating the privileges of the requestor to the root user. This flaw could be used by an unprivileged local attacker to, for example, create a new local administrator. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
polkit 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
polkit是一个在类 Unix操作系统中控制系统范围权限的组件。通过定义和审核权限规则，实现不同优先级进程间的通讯。 polkit 存在代码问题漏洞，该漏洞源于当请求进程在调用polkit_system_bus_name_get_creds_sync之前断开与dbus-daemon的连接时，该进程无法获得进程的唯一uid和pid，也无法验证请求进程的特权。
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)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor Product Affected Versions CPE Subscribe
- polkit polkit 0.119 -

II. Public POCs for CVE-2021-3560

# POC Description Source Link Shenlong Link
1 Automatic Explotation PoC for Polkit CVE-2021-3560 https://github.com/aancw/polkit-auto-exploit POC Details
2 CVE-2021-3560 Local PrivEsc Exploit https://github.com/swapravo/polkadots POC Details
3 a reliable C based exploit and writeup for CVE-2021-3560. https://github.com/hakivvi/CVE-2021-3560 POC Details
4 polkit exploit script v1.0 https://github.com/iSTAR-Lab/CVE-2021-3560_PoC POC Details
5 None https://github.com/secnigma/CVE-2021-3560-Polkit-Privilege-Esclation POC Details
6 Polkit - Local Privilege Escalation (CVE-2021-3560) https://github.com/curtishoughton/CVE-2021-3560 POC Details
7 Privilege escalation with polkit - CVE-2021-3560 https://github.com/Almorabea/Polkit-exploit POC Details
8 None https://github.com/AssassinUKG/Polkit-CVE-2021-3560 POC Details
9 ubuntu new PrivEsc race condition vulnerability https://github.com/cpu0x00/CVE-2021-3560 POC Details
10 NYCY_homework_&_meeting https://github.com/BizarreLove/CVE-2021-3560 POC Details
11 Polkit D-Bus Authentication Bypass Exploit https://github.com/0dayNinja/CVE-2021-3560 POC Details
12 CVE-2021-3560 (Polkit - Local Privilege Escalation) https://github.com/TomMalvoRiddle/CVE-2021-3560 POC Details
13 CVE-2021-3560 analysis https://github.com/chenaotian/CVE-2021-3560 POC Details
14 Polkit Exploit (CVE-2021-3560), no download capabilty? Copy and paste it! https://github.com/n3onhacks/CVE-2021-3560 POC Details
15 f4T1H's PoC script for CVE-2021-3560 Polkit D-Bus Privilege Escalation https://github.com/f4T1H21/CVE-2021-3560-Polkit-DBus POC Details
16 None https://github.com/innxrmxst/CVE-2021-3560 POC Details
17 PolicyKit CVE-2021-3560 Exploit (Authentication Agent) https://github.com/RicterZ/CVE-2021-3560-Authentication-Agent POC Details
18 PolicyKit CVE-2021-3560 Exploitation (Authentication Agent) https://github.com/WinMin/CVE-2021-3560 POC Details
19 Exploit for CVE-2021-3560 (Polkit) - Local Privilege Escalation https://github.com/UNICORDev/exploit-CVE-2021-3560 POC Details
20 None https://github.com/asepsaepdin/CVE-2021-3560 POC Details
21 Polkit 0.105-26 0.117-2 - Local Privilege Escalation https://github.com/pashayogi/ROOT-CVE-2021-3560 POC Details
22 CVE-2021-3560 Bypass su - root https://github.com/TieuLong21Prosper/CVE-2021-3560 POC Details
23 Exploitation of the CVE-2021-3560 polkit vulnerability https://github.com/LucasPDiniz/CVE-2021-3560 POC Details
24 None https://github.com/markyu0401/CVE-2021-3560-Polkit-Privilege-Escalation POC Details
25 Part of my cybersecurity thesis consists in exploring and exploiting this vulnerability. https://github.com/Kyyomaa/CVE-2021-3560-EXPLOIT POC Details
26 Polkit Exploit (CVE-2021-3560), no download capabilty? Copy and paste it! https://github.com/NeonWhiteRabbit/CVE-2021-3560 POC Details
27 CVE-2021-3560 (Polkit - Local Privilege Escalation) https://github.com/admin-079/CVE-2021-3560 POC Details
28 Exploitation Script for CVE-2021-3560 https://github.com/arcslash/exploit_CVE-2021-3560 POC Details
29 This is an exercise built around CVE-2021-3560 https://github.com/titusG85/SideWinder-Exploit POC Details
30 None https://github.com/MandipJoshi/CVE-2021-3560 POC Details
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III. Intelligence Information for CVE-2021-3560

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Vendor Advisories for CVE-2021-3560 (1)

Exploits & Public PoCs for CVE-2021-3560 (1)

Other References for CVE-2021-3560 (1)

Same Patch Batch · n/a · 2022-02-16 · 50 CVEs total

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CVE-2021-21958 Hancom Office 缓冲区错误漏洞
CVE-2021-39300 Hp Uefi 安全漏洞
CVE-2021-39299 Hp Uefi 安全漏洞

Showing top 20 of 50 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: polkit
Same vendor: n/a
Same weakness: CWE-863

V. Comments for CVE-2021-3560

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