CVE-2020-1472

NameCVE-2020-1472
DescriptionAn elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC), aka 'Netlogon Elevation of Privilege Vulnerability'.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severityhigh
Debian Bugs971048

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
samba (PTS)stretch (security), stretch2:4.5.16+dfsg-1+deb9u2vulnerable
buster2:4.9.5+dfsg-5vulnerable
buster (security)2:4.9.5+dfsg-5+deb10u1vulnerable
bullseye, sid2:4.12.5+dfsg-3vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
sambasource(unstable)(unfixed)971048

Notes

[buster] - samba <no-dsa> (Has already safe defaults; can be fixed along in point release)
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1472
Originally a Microsoft only CVE but it was found that the ZeroLogon attack
https://bugzilla.samba.org/show_bug.cgi?id=14497
Mitigation: server schannel = yes; but code changes planned.
https://www.openwall.com/lists/oss-security/2020/09/17/2
https://www.samba.org/samba/security/CVE-2020-1472.html

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