According to the versions of the samba packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide ...enhanced compatibility     with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver. Samba versions prior to     4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via     specially crafted extended file attributes. A remote attacker with write access to extended file     attributes can execute arbitrary code with the privileges of smbd, typically root. (CVE-2021-44142)

  - All versions of Samba prior to 4.13.16 are vulnerable to a malicious client using an SMB1 or NFS race to     allow a directory to be created in an area of the server file system not exported under the share     definition. Note that SMB1 has to be enabled, or the share also available via NFS in order for this attack     to succeed. (CVE-2021-43566)

  - The Samba AD DC includes checks when adding service principals names (SPNs) to an account to ensure that     SPNs do not alias with those already in the database. Some of these checks are able to be bypassed if an     account modification re-adds an SPN that was previously present on that account, such as one added when a     computer is joined to a domain. An attacker who has the ability to write to an account can exploit this to     perform a denial-of-service attack by adding an SPN that matches an existing service. Additionally, an     attacker who can intercept traffic can impersonate existing services, resulting in a loss of     confidentiality and integrity. (CVE-2022-0336)

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

According to the versions of the samba packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide ...enhanced compatibility     with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver. Samba versions prior to     4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via     specially crafted extended file attributes. A remote attacker with write access to extended file     attributes can execute arbitrary code with the privileges of smbd, typically root. (CVE-2021-44142)

  - All versions of Samba prior to 4.13.16 are vulnerable to a malicious client using an SMB1 or NFS race to     allow a directory to be created in an area of the server file system not exported under the share     definition. Note that SMB1 has to be enabled, or the share also available via NFS in order for this attack     to succeed. (CVE-2021-43566)

  - The Samba AD DC includes checks when adding service principals names (SPNs) to an account to ensure that     SPNs do not alias with those already in the database. Some of these checks are able to be bypassed if an     account modification re-adds an SPN that was previously present on that account, such as one added when a     computer is joined to a domain. An attacker who has the ability to write to an account can exploit this to     perform a denial-of-service attack by adding an SPN that matches an existing service. Additionally, an     attacker who can intercept traffic can impersonate existing services, resulting in a loss of     confidentiality and integrity. (CVE-2022-0336)

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

The remote Ubuntu 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5260-1 advisory.

    Orange Tsai discovered that the Samba vfs_fruit module incorrectly handled certain memory operations. A     remote attacker could use this issue to cause Samba to crash, resulting in a denial of service, or     possibly execute arbitrary code as root. (CVE-2021-44142)

    Michael Hanselmann discovered that Samba incorrectly created directories. In certain configurations, a     remote attacker could possibly create a directory on the server outside of the shared directory.
    (CVE-2021-43566)

    Kees van Vloten discovered that Samba incorrectly handled certain aliased SPN checks. A remote attacker     could possibly use this issue to impersonate services. (CVE-2022-0336)

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

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
159812	EulerOS 2.0 SP9 : samba (EulerOS-SA-2022-1438)	Nessus	Huawei Local Security Checks	2022/4/18	2023/3/21	high
160148	EulerOS 2.0 SP8 : samba (EulerOS-SA-2022-1586)	Nessus	Huawei Local Security Checks	2022/4/25	2023/3/21	high
160592	EulerOS Virtualization 2.9.1 : samba (EulerOS-SA-2022-1614)	Nessus	Huawei Local Security Checks	2022/5/5	2023/3/21	high
160676	EulerOS 2.0 SP10 : samba (EulerOS-SA-2022-1652)	Nessus	Huawei Local Security Checks	2022/5/6	2023/3/21	high
157286	Ubuntu 20.04 LTS : Samba vulnerabilities (USN-5260-1)	Nessus	Ubuntu Local Security Checks	2022/2/1	2024/8/27	high

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