high
8.1
Advisory Published
Updated

CVE-2019-9579

First published: Mon Dec 26 2022(Updated: )

An issue was discovered in Illumos in Nexenta NexentaStor 4.0.5 and 5.1.2, and other products. The SMB server allows an attacker to have unintended access, e.g., an attacker with WRITE_XATTR can change permissions. This occurs because of a combination of three factors: ZFS extended attributes are used to implement NT named streams, the SMB protocol requires implementations to have open handle semantics similar to those of NTFS, and the SMB server passes along certain attribute requests to the underlying object (i.e., they are not considered to be requests that pertain to the named stream).

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Illumos Illumos
Nexenta NexentaStor=4.0.5
Nexenta NexentaStor=5.1.2
Oracle Solaris=11

Remedy

https://www.illumos.org/issues/10506

Remedy

https://www.oracle.com/security-alerts/cpuapr2020.html

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Reference Links

Frequently Asked Questions

  • What is CVE-2019-9579?

    CVE-2019-9579 is a vulnerability discovered in Illumos in Nexenta NexentaStor 4.0.5 and 5.1.2, and other products, allowing unintended access to the SMB server.

  • How does CVE-2019-9579 impact illumos and Nexenta NexentaStor?

    CVE-2019-9579 allows an attacker to have unintended access to the SMB server, potentially changing permissions.

  • What is the severity of CVE-2019-9579?

    CVE-2019-9579 has a severity rating of 8.1 (high).

  • Which versions of Nexenta NexentaStor are affected by CVE-2019-9579?

    Nexenta NexentaStor versions 4.0.5 and 5.1.2 are affected by CVE-2019-9579.

  • How can I mitigate the vulnerability CVE-2019-9579?

    To mitigate CVE-2019-9579, it is recommended to apply the necessary security patches provided by the vendor.

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