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Vulnerability Details : CVE-2019-3870

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.
Publish Date : 2019-04-09 Last Update Date : 2019-05-27
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- CVSS Scores & Vulnerability Types

CVSS Score
3.6
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 275

- Products Affected By CVE-2019-3870

# Product Type Vendor Product Version Update Edition Language
1 OS Fedoraproject Fedora 29 Version Details Vulnerabilities
2 OS Fedoraproject Fedora 30 Version Details Vulnerabilities
3 Application Samba Samba 4.9.0 Version Details Vulnerabilities
4 Application Samba Samba 4.9.1 Version Details Vulnerabilities
5 Application Samba Samba 4.9.2 Version Details Vulnerabilities
6 Application Samba Samba 4.9.3 Version Details Vulnerabilities
7 Application Samba Samba 4.9.4 Version Details Vulnerabilities
8 Application Samba Samba 4.10.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Fedoraproject Fedora 2
Samba Samba 6

- References For CVE-2019-3870

https://www.synology.com/security/advisory/Synology_SA_19_15 CONFIRM
https://www.samba.org/samba/security/CVE-2019-3870.html
https://support.f5.com/csp/article/K20804356 CONFIRM
https://lists.fedoraproject.org/archives/list/[email protected]/message/JTJVFA3RZ6G2IZDTVKLHRMX6QBYA4GPA/
FEDORA FEDORA-2019-cacf88eabf
https://lists.fedoraproject.org/archives/list/[email protected]/message/6354GALK73CZWQKFUG7AWB6EIEGFMF62/
FEDORA FEDORA-2019-db21b5f1d2
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3870 CONFIRM
https://bugzilla.samba.org/show_bug.cgi?id=13834

- Metasploit Modules Related To CVE-2019-3870

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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