A vulnerability was found in Samba from version (including) 4.9 to versions before 4.9.6 and 4.10.2. During the creation of a new Samba AD DC, files are created in a private subdirectory of the install location. This directory is typically mode 0700, that is owner (root) only access. However in some upgraded installations it will have other permissions, such as 0755, because this was the default before Samba 4.8. Within this directory, files are created with mode 0666, which is world-writable, including a sample krb5.conf, and the list of DNS names and servicePrincipalName values to update.

The Rocky Linux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_1613 advisory.

    This advisory aggregates security fixes for the samba SRPM in CIQ LTS 9.2. It addresses 88 CVEs:
    CVE-2018-1050, CVE-2020-10760, CVE-2013-4475, CVE-2020-10730, CVE-2018-16857, and 83 more.

Tenable has extracted the preceding description block directly from the CIQ security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_1637 advisory.

    This advisory aggregates security fixes for the samba SRPM in CIQ LTS 9.6. It addresses 97 CVEs:
    CVE-2018-1050, CVE-2020-10760, CVE-2013-4475, CVE-2020-10730, CVE-2018-16857, and 92 more.

Tenable has extracted the preceding description block directly from the CIQ security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - A vulnerability was found in Samba from version (including) 4.9 to versions before 4.9.6 and 4.10.2.
    During the creation of a new Samba AD DC, files are created in a private subdirectory of the install
    location. This directory is typically mode 0700, that is owner (root) only access. However in some
    upgraded installations it will have other permissions, such as 0755, because this was the default before
    Samba 4.8. Within this directory, files are created with mode 0666, which is world-writable, including a
    sample krb5.conf, and the list of DNS names and servicePrincipalName values to update. (CVE-2019-3870)

The version of samba installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2019-3870 advisory.

  - A vulnerability was found in Samba from version (including) 4.9 to versions before 4.9.6 and 4.10.2.
    During the creation of a new Samba AD DC, files are created in a private subdirectory of the install     location. This directory is typically mode 0700, that is owner (root) only access. However in some     upgraded installations it will have other permissions, such as 0755, because this was the default before     Samba 4.8. Within this directory, files are created with mode 0666, which is world-writable, including a     sample krb5.conf, and the list of DNS names and servicePrincipalName values to update. (CVE-2019-3870)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

A vulnerability was found in Samba from version (including) 4.9 to versions before 4.9.6 and 4.10.2. During the creation of a new Samba AD DC, files are created in a private subdirectory of the install location. This directory is typically mode 0700, that is owner (root) only access. However in some upgraded installations it will have other permissions, such as 0755, because this was the default before Samba 4.8. Within this directory, files are created with mode 0666, which is world-writable, including a sample krb5.conf, and the list of DNS names and servicePrincipalName values to update.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Update to Samba 4.9.6, Security fixes for CVE-2019-3870 and CVE-2019-3880

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The version of Samba running on the remote host is 4.9.x < 4.9.6 or 4.10.0 prior to 4.10.2. It is, therefore, potentially affected by a world writable files vulnerability. An authenticated, local attacker can exploit this issue to read and update files in the private/ directory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
364622	Rocky Linux 9.2 [CIQ] Security Update: ctdb / libnetapi / libnetapi-devel / libsmbclient / etc Multiple Vulnerabilities (ciqsa-2026_1613)	Nessus	Rocky Linux Local Security Checks	Local	critical
364609	Rocky Linux 9.6 [CIQ] Security Update: ldb-tools / libldb / libldb-devel / libnetapi / libnetapi-devel / etc Multiple Vulnerabilities (ciqsa-2026_1637)	Nessus	Rocky Linux Local Security Checks	Local	critical
463908	Echo: samba: security update to 2:4.9.5+dfsg-3	Tenable Cloud Security	Echo Local Security Checks	Local	medium
463908	Echo: samba: security update to 2:4.9.5+dfsg-3	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	medium
296034	Azure Linux 3.0 Security Update: samba (CVE-2019-3870)	Nessus	Azure Linux Local Security Checks	Local	medium
502476	Synology DiskStation Manager Samba Incorrect Default Permissions (CVE-2019-3870)	Tenable OT Security	Tenable.ot	Remote	medium
124540	Fedora 30 : 2:samba (2019-cacf88eabf)	Nessus	Fedora Local Security Checks	Local	medium
124087	Samba 4.9.x < 4.9.6 / 4.10.0 < 4.10.2 World-Writable Files Vulnerability (CVE-2019-3870)	Nessus	Misc.	Remote	medium
124069	Fedora 29 : 2:samba (2019-db21b5f1d2)	Nessus	Fedora Local Security Checks	Local	medium

Detections

Analytics

CVE-2019-3870

medium

Tenable Plugins

critical

critical

medium

medium

medium

medium

medium

medium

medium