Vulnerability Monitor

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CVE-2020-25721

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.

Published

2022-03-16T15:15:09.813

Last Modified

2024-11-21T05:18:34.417

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.8 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: SINGLE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

8.0

Impact Score

6.4

Weaknesses

Type: Secondary
CWE-20
Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	samba	samba	< 4.13.14	Yes
Application	samba	samba	< 4.14.10	Yes
Application	samba	samba	< 4.15.2	Yes

References

https://bugzilla.redhat.com/show_bug.cgi?id=2021728 Issue Tracking, Third Party Advisory ([email protected])
https://bugzilla.samba.org/show_bug.cgi?id=14725 Issue Tracking, Vendor Advisory ([email protected])
https://security.gentoo.org/glsa/202309-06 ([email protected])
https://www.samba.org/samba/security/CVE-2020-25721.html Vendor Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=2021728 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.samba.org/show_bug.cgi?id=14725 Issue Tracking, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202309-06 (af854a3a-2127-422b-91ae-364da2661108)
https://www.samba.org/samba/security/CVE-2020-25721.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)