CVE-2021-3621

Published: Dic 23, 2021 Last Modified: Nov 03, 2025
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
HIGH 9,3
Source: [email protected]
Access Vector: network
Access Complexity: medium
Authentication: none
Confidentiality: complete
Integrity: complete
Availability: complete

Description

AI Translation Available

A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs-fetch and cache-expire subcommands. This flaw allows an attacker to trick the root user into running a specially crafted sssctl command, such as via sudo, to gain root access. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0045
Percentile
0,6th
Updated

EPSS Score Trend (Last 90 Days)

77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

Draft
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Confidentiality Availability
Potential Impacts:
Execute Unauthorized Code Or Commands
Applicable Platforms
Technologies: AI/ML
Likelihood of Exploit: High
View CWE Details
78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Stable
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Availability Non-Repudiation
Potential Impacts:
Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Read Files Or Directories Modify Files Or Directories Read Application Data Modify Application Data Hide Activities
Applicable Platforms
Technologies: AI/ML, Not Technology-Specific, Web Server
Likelihood of Exploit: High
View CWE Details
Operating System

Enterprise Linux by Redhat

Product Information
Vendor Redhat
Product Enterprise Linux
Version 7.0
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Enterprise Linux by Redhat

Product Information
Vendor Redhat
Product Enterprise Linux
Version 6.0
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Enterprise Linux Server Aus by Redhat

Product Information
Vendor Redhat
Product Enterprise Linux Server Aus
Version 8.2
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Virtualization by Redhat

Product Information
Vendor Redhat
Product Virtualization
Version 4.0
cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Enterprise Linux Eus by Redhat

Product Information
Vendor Redhat
Product Enterprise Linux Eus
Version 8.2
cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Enterprise Linux Eus by Redhat

Product Information
Vendor Redhat
Product Enterprise Linux Eus
Version 8.1
cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Fedora by Fedoraproject

Product Information
Vendor Fedoraproject
Product Fedora
Version 34
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Sssd by Fedoraproject

Product Information
Vendor Fedoraproject
Product Sssd
Version 2.6.0
cpe:2.3:a:fedoraproject:sssd:2.6.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Enterprise Linux Server Tus by Redhat

Product Information
Vendor Redhat
Product Enterprise Linux Server Tus
Version 8.4
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Enterprise Linux Server Tus by Redhat

Product Information
Vendor Redhat
Product Enterprise Linux Server Tus
Version 8.2
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Virtualization Host by Redhat

Product Information
Vendor Redhat
Product Virtualization Host
Version 4.0
cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Enterprise Linux Server Aus by Redhat

Product Information
Vendor Redhat
Product Enterprise Linux Server Aus
Version 8.4
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Enterprise Linux by Redhat

Product Information
Vendor Redhat
Product Enterprise Linux
Version 8.0
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://bugzilla.redhat.com/show_bug.cgi?id=1975142
https://bugzilla.redhat.com/show_bug.cgi?id=1975142
https://lists.debian.org/debian-lts-announce/2023/05/msg000…
https://lists.debian.org/debian-lts-announce/2023/05/msg00028.html
https://lists.debian.org/debian-lts-announce/2025/02/msg000…
https://lists.debian.org/debian-lts-announce/2025/02/msg00008.html
https://sssd.io/release-notes/sssd-2.6.0.html
https://sssd.io/release-notes/sssd-2.6.0.html
https://bugzilla.redhat.com/show_bug.cgi?id=1975142
https://bugzilla.redhat.com/show_bug.cgi?id=1975142
https://lists.debian.org/debian-lts-announce/2023/05/msg000…
https://lists.debian.org/debian-lts-announce/2023/05/msg00028.html
https://sssd.io/release-notes/sssd-2.6.0.html
https://sssd.io/release-notes/sssd-2.6.0.html