CVE-2019-3880

moderate-risk

Published 2019-04-09

A flaw was found in the way samba implemented an RPC endpoint emulating the Windows registry service API. An unprivileged attacker could use this flaw to create a new registry hive file anywhere they have unix permissions which could lead to creation of a new file in the Samba share. Versions before 4.8.11, 4.9.6 and 4.10.2 are vulnerable.

Do I need to act?

3.4% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.4/10 Medium

NETWORK / LOW complexity

Affected Products (8)

Samba

Debian Linux

Gluster Storage

Enterprise Linux

Fedora

Leap

Affected Vendors

Debian Redhat Samba Fedoraproject Opensuse

References (31)

Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00050.html

Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00106.html

Third Party Advisory https://access.redhat.com/errata/RHSA-2019:1966

Third Party Advisory https://access.redhat.com/errata/RHSA-2019:1967

Third Party Advisory https://access.redhat.com/errata/RHSA-2019:2099

Third Party Advisory https://access.redhat.com/errata/RHSA-2019:3582

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3880

Third Party Advisory https://lists.debian.org/debian-lts-announce/2019/04/msg00013.html

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

Third Party Advisory https://security.netapp.com/advisory/ntap-20190411-0004/

Third Party Advisory https://support.f5.com/csp/article/K20804356

Mitigation https://www.samba.org/samba/security/CVE-2019-3880.html

Third Party Advisory https://www.synology.com/security/advisory/Synology_SA_19_15

Mitigation https://access.redhat.com/security/cve/cve-2019-3880

Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00050.html

Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00106.html

Third Party Advisory https://access.redhat.com/errata/RHSA-2019:1966

Third Party Advisory https://access.redhat.com/errata/RHSA-2019:1967

and 11 more references

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moderate-risk

Severity 21/34 · High

Exploitability 7/34 · Low

Exposure 14/34 · Moderate