| Name | CVE-2020-1472 |
| Description | An 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'. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2463-1 |
| Debian Bugs | 971048 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| samba (PTS) | buster | 2:4.9.5+dfsg-5+deb10u3 | vulnerable |
| buster (security) | 2:4.9.5+dfsg-5+deb10u4 | vulnerable |
| bullseye (security), bullseye | 2:4.13.13+dfsg-1~deb11u5 | fixed |
| bookworm, bookworm (security) | 2:4.17.12+dfsg-0+deb12u1 | fixed |
| sid, trixie | 2:4.19.3+dfsg-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| samba | source | experimental | 2:4.13.2+dfsg-1 | | | |
| samba | source | stretch | 2:4.5.16+dfsg-1+deb9u3 | | DLA-2463-1 | |
| samba | source | (unstable) | 2:4.13.2+dfsg-2 | | | 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