Samba up to 4.9.12/4.10.7/4.11.0rc2 Configuration Configuration File path traversal

Summaryinfo

A vulnerability was found in Samba up to 4.9.12/4.10.7/4.11.0rc2. It has been rated as critical. Affected by this issue is some unknown functionality of the component Configuration Handler. The manipulation as part of Configuration File leads to path traversal. This vulnerability is uniquely identified as CVE-2019-10197. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Samba up to 4.9.12/4.10.7/4.11.0rc2 (File Transfer Software) and classified as critical. This issue affects an unknown function of the component Configuration Handler. The manipulation as part of a Configuration File leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A flaw was found in samba versions 4.9.x up to 4.9.13, samba 4.10.x up to 4.10.8 and samba 4.11.x up to 4.11.0rc3, when certain parameters were set in the samba configuration file. An unauthenticated attacker could use this flaw to escape the shared directory and access the contents of directories outside the share.

The weakness was disclosed 09/03/2019 (Website). The advisory is shared at usn.ubuntu.com. The identification of this vulnerability is CVE-2019-10197 since 03/27/2019. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 236653 (Alibaba Cloud Linux 3 : 0077: samba (ALINUX3-SA-2021:0077)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.13, 4.10.8 or 4.11.0rc3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (236653). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• File Transfer Software

Name

• Samba

Version

• 4.9.0
• 4.9.1
• 4.9.2
• 4.9.3
• 4.9.4
• 4.9.5
• 4.9.6
• 4.9.7
• 4.9.8
• 4.9.9
• 4.9.10
• 4.9.11
• 4.9.12
• 4.10.0
• 4.10.1
• 4.10.2
• 4.10.3
• 4.10.4
• 4.10.5
• 4.10.6
• 4.10.7
• 4.11.0rc1
• 4.11.0rc2

License

• open-source

Website

• Product: https://www.samba.org/

CPE 2.3info

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CPE 2.2info

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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