High severity · published Mar 16, 2022
CVE-2020-25721
Kerberos acceptors need easy access to stable AD identifiers (eg objectSid)
8.8
CVSS
2.2%
EPSS
No
On KEV
Description
Kerberos acceptors need easy access to stable AD identifiers (eg objectSid). Samba as an AD DC now provides a way for Linux applications to obtain a reliable SID (and samAccountName) in issued tickets.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.2% · higher than 82% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SA
Samba · Samba
4.13.0 before 4.13.14; 4.14.0 before 4.14.10; 4.15.0 before 4.15.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-25721
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-25721
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2021728
Issue Tracking
https://bugzilla.samba.org/show_bug.cgi?id=14725
security.gentoo.org
https://security.gentoo.org/glsa/202309-06
Vendor Advisory
https://www.samba.org/samba/security/CVE-2020-25721.html
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