Samba Issues Security Updates to Patch Multiple High-Severity Vulnerabilities

Samba has unveiled computer software updates to remediate several vulnerabilities that, if efficiently exploited, could permit an attacker to just take command of afflicted methods.

The higher-severity flaws, tracked as CVE-2022-38023, CVE-2022-37966, CVE-2022-37967, and CVE-2022-45141, have been patched in versions 4.17.4, 4.16.8 and 4.15.13 introduced on December 15, 2022.

Samba is an open up resource Windows interoperability suite for Linux, Unix, and macOS working devices that delivers file server, printing, and Energetic Directory expert services.

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A short description of just about every of the weaknesses is under –

• CVE-2022-38023 (CVSS score: 8.1) – Use of weak RC4-HMAC Kerberos encryption sort in the NetLogon Safe Channel
• CVE-2022-37966 (CVSS rating: 8.1) – An elevation of privilege vulnerability in Windows Kerberos RC4-HMAC
• CVE-2022-37967 (CVSS score: 7.2) – An elevation of privilege vulnerability in Windows Kerberos
• CVE-2022-45141 (CVSS score: 8.1) – Use of RC4-HMAC encryption when issuing Kerberos tickets in Samba Lively Listing domain controller (Advertisement DC) applying Heimdal

It is really worth noting that equally CVE-2022-37966 and CVE-2022-37967, which allow an adversary to attain administrator privileges, had been very first disclosed by Microsoft as section of its November 2022 Patch Tuesday updates.

“An unauthenticated attacker could perform an attack that could leverage cryptographic protocol vulnerabilities in RFC 4757 (Kerberos encryption sort RC4-HMAC-MD5) and MS-PAC (Privilege Attribute Certification Information Structure specification) to bypass security features in a Windows Advertisement surroundings,” the enterprise explained of CVE-2022-37966.

The patches also appear as the U.S. Cybersecurity and Infrastructure Security Agency (CISA) this week published 41 Industrial Handle Techniques (ICS) advisories pertaining to various flaws impacting Siemens and Prosys OPC products.

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