High severity · published Dec 23, 2021
CVE-2021-3621
A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs-fetch and cache-expire subcommands
8.8
CVSS
2.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.6% · higher than 85% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux · Redhat
6.0; 7.0; 8.0 · source: NVD
EL
Enterprise Linux Eus · Redhat
8.1; 8.2 · source: NVD
EL
EL
FE
Fedora · Fedoraproject
34 · source: NVD
SS
Sssd · Fedoraproject
2.6.0 · source: NVD
VI
Virtualization · Redhat
4.0 · source: NVD
VH
Affected product
FE
Fedora
Fedoraproject
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