CVE-2020-25717: A flaw was found in the way Samba maps domain users to local users

High severity · published Feb 18, 2022

CVE-2020-25717

A flaw was found in the way Samba maps domain users to local users

8.1

CVSS

1.6%

EPSS

On KEV

Description

A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could use this flaw to cause possible privilege escalation.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Attack vector

Network

Complexity

Low

Privileges

Low

User interaction

None

Confidentiality

High

Integrity

High

Availability

None

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)1.6% · higher than 76% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Codeready Linux Builder · Redhat

All versions, or not specified · source: NVD

Debian Linux · Debian

9.0; 10.0 · source: NVD

Enterprise Linux · Redhat

7.0; 8.0 · source: NVD

Enterprise Linux Desktop · Redhat

7.0 · source: NVD

Enterprise Linux Eus · Redhat

8.2; 8.4 · source: NVD

Enterprise Linux For Ibm Z Systems · Redhat

7.0; 8.0 · source: NVD

Enterprise Linux For Ibm Z Systems Eus · Redhat

8.2; 8.4 · source: NVD

Enterprise Linux For Power Big Endian · Redhat

7.0 · source: NVD

Enterprise Linux For Power Little Endian · Redhat

7.0; 8.0 · source: NVD

Enterprise Linux For Power Little Endian Eus · Redhat

8.2; 8.4 · source: NVD

Enterprise Linux For Scientific Computing · Redhat

7.0 · source: NVD

Enterprise Linux Resilient Storage · Redhat

7.0 · source: NVD

Affected product

Ubuntu Linux

Canonical

All Ubuntu Linux CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2020-25717

CVE.org

https://www.cve.org/CVERecord?id=CVE-2020-25717

Issue Tracking

https://bugzilla.redhat.com/show_bug.cgi?id=2019672

security.gentoo.org

https://security.gentoo.org/glsa/202309-06

Mitigation

https://www.samba.org/samba/security/CVE-2020-25717.html