Medium severity · published Feb 21, 2022
CVE-2021-44141
All versions of Samba prior to 4.15.5 are vulnerable to a malicious client using a server symlink to determine if a file or directory exists in an area of the server file system…
4.3
CVSS
1.1%
EPSS
No
On KEV
Description
All versions of Samba prior to 4.15.5 are vulnerable to a malicious client using a server symlink to determine if a file or directory exists in an area of the server file system not exported under the share definition. SMB1 with unix extensions has to be enabled in order for this attack to succeed.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FE
Fedora · Fedoraproject
34; 35 · source: NVD
SA
Samba · Samba
before 4.15.5 · source: NVD
ST
Storage · Redhat
3.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-44141
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-44141
security.gentoo.org
https://security.gentoo.org/glsa/202309-06
Mitigation
https://www.samba.org/samba/security/CVE-2021-44141.html
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