ALT-BU-2021-4358-1
Branch c9f2 update bulletin.
Closed vulnerabilities
BDU:2020-05328
Уязвимость компонента Kerberos KDC операционных систем Windows, позволяющая нарушителю обойти существующие ограничения безопасности и получить несанкционированный доступ к приложению
BDU:2021-05958
Уязвимость компонента сборки MIT Kerberos Samba AD DC программ сетевого взаимодействия Samba, позволяющая нарушителю повысить свои привилегии
BDU:2021-05993
Уязвимость реализации протокола SMB1 пакета программ сетевого взаимодействия Samba, связанная с возможностью перевода клиентского соединения на аутентификацию с открытым текстом, позволяющая нарушителю выполнить атаку типа «человек посередине»
BDU:2021-06022
Уязвимость функционала создания учетных записей в домене MachineAccountQuota программ сетевого взаимодействия Samba, позволяющая нарушителю повысить свои привилегии
BDU:2022-00004
Уязвимость компонента Active Directory Domain Controller пакета программ для сетевого взаимодействия Samba, позволяющая нарушителю выполнить произвольный код
BDU:2022-05701
Уязвимость пакета программ сетевого взаимодействия Samba, связанная с недостатками процедуры аутентификации, позволяющая нарушителю получить доступ к конфиденциальным данным, нарушить их целостность, а также вызвать отказ в обслуживании
BDU:2022-05702
Уязвимость пакета программ сетевого взаимодействия Samba, связанная с недостаточной проверкой вводимых данных, позволяющая нарушителю получить доступ к конфиденциальным данным, нарушить их целостность, а также вызвать отказ в обслуживании
BDU:2022-05707
Уязвимость компонентов DCE/RPC пакета программ сетевого взаимодействия Samba, позволяющая нарушителю оказать воздействие на целостность данных
Modified: 2024-11-21
CVE-2016-2124
A flaw was found in the way samba implemented SMB1 authentication. An attacker could use this flaw to retrieve the plaintext password sent over the wire even if Kerberos authentication was required.
- https://bugzilla.redhat.com/show_bug.cgi?id=2019660
- https://bugzilla.redhat.com/show_bug.cgi?id=2019660
- [debian-lts-announce] 20230914 [SECURITY] [DLA 3563-1] samba security update
- [debian-lts-announce] 20230914 [SECURITY] [DLA 3563-1] samba security update
- GLSA-202309-06
- GLSA-202309-06
- https://www.samba.org/samba/security/CVE-2016-2124.html
- https://www.samba.org/samba/security/CVE-2016-2124.html
Modified: 2024-11-21
CVE-2020-17049
A security feature bypass vulnerability exists in the way Key Distribution Center (KDC) determines if a service ticket can be used for delegation via Kerberos Constrained Delegation (KCD). To exploit the vulnerability, a compromised service that is configured to use KCD could tamper with a service ticket that is not valid for delegation to force the KDC to accept it. The update addresses this vulnerability by changing how the KDC validates service tickets used with KCD.
- [oss-security] 20211110 Fwd: Samba 4.15.2, 4.14.10, 4.13.14 Security Releases are available for Download
- [oss-security] 20211110 Fwd: Samba 4.15.2, 4.14.10, 4.13.14 Security Releases are available for Download
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17049
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17049
- GLSA-202309-06
- GLSA-202309-06
Modified: 2024-11-21
CVE-2020-25717
A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could use this flaw to cause possible privilege escalation.
Modified: 2024-11-21
CVE-2020-25718
A flaw was found in the way samba, as an Active Directory Domain Controller, is able to support an RODC (read-only domain controller). This would allow an RODC to print administrator tickets.
Modified: 2024-11-21
CVE-2020-25719
A flaw was found in the way Samba, as an Active Directory Domain Controller, implemented Kerberos name-based authentication. The Samba AD DC, could become confused about the user a ticket represents if it did not strictly require a Kerberos PAC and always use the SIDs found within. The result could include total domain compromise.
Modified: 2024-11-21
CVE-2020-25721
Kerberos acceptors need easy access to stable AD identifiers (eg objectSid). Samba as an AD DC now provides a way for Linux applications to obtain a reliable SID (and samAccountName) in issued tickets.
- https://bugzilla.redhat.com/show_bug.cgi?id=2021728
- https://bugzilla.redhat.com/show_bug.cgi?id=2021728
- https://bugzilla.samba.org/show_bug.cgi?id=14725
- https://bugzilla.samba.org/show_bug.cgi?id=14725
- GLSA-202309-06
- GLSA-202309-06
- https://www.samba.org/samba/security/CVE-2020-25721.html
- https://www.samba.org/samba/security/CVE-2020-25721.html
Modified: 2024-11-21
CVE-2020-25722
Multiple flaws were found in the way samba AD DC implemented access and conformance checking of stored data. An attacker could use this flaw to cause total domain compromise.
Modified: 2024-11-21
CVE-2021-23192
A flaw was found in the way samba implemented DCE/RPC. If a client to a Samba server sent a very large DCE/RPC request, and chose to fragment it, an attacker could replace later fragments with their own data, bypassing the signature requirements.
- https://bugzilla.redhat.com/show_bug.cgi?id=2019666
- https://bugzilla.redhat.com/show_bug.cgi?id=2019666
- GLSA-202309-06
- GLSA-202309-06
- https://ubuntu.com/security/CVE-2021-23192
- https://ubuntu.com/security/CVE-2021-23192
- https://www.samba.org/samba/security/CVE-2021-23192.html
- https://www.samba.org/samba/security/CVE-2021-23192.html
Modified: 2024-11-21
CVE-2021-3738
In DCE/RPC it is possible to share the handles (cookies for resource state) between multiple connections via a mechanism called 'association groups'. These handles can reference connections to our sam.ldb database. However while the database was correctly shared, the user credentials state was only pointed at, and when one connection within that association group ended, the database would be left pointing at an invalid 'struct session_info'. The most likely outcome here is a crash, but it is possible that the use-after-free could instead allow different user state to be pointed at and this might allow more privileged access.
- https://bugzilla.redhat.com/show_bug.cgi?id=2021726
- https://bugzilla.redhat.com/show_bug.cgi?id=2021726
- https://bugzilla.samba.org/show_bug.cgi?id=14468
- https://bugzilla.samba.org/show_bug.cgi?id=14468
- GLSA-202309-06
- GLSA-202309-06
- https://www.samba.org/samba/security/CVE-2021-3738.html
- https://www.samba.org/samba/security/CVE-2021-3738.html
Closed vulnerabilities
Modified: 2024-11-21
CVE-2021-3621
A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs-fetch and cache-expire subcommands. This flaw allows an attacker to trick the root user into running a specially crafted sssctl command, such as via sudo, to gain root access. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
- https://bugzilla.redhat.com/show_bug.cgi?id=1975142
- https://bugzilla.redhat.com/show_bug.cgi?id=1975142
- [debian-lts-announce] 20230529 [SECURITY] [DLA 3436-1] sssd security update
- [debian-lts-announce] 20230529 [SECURITY] [DLA 3436-1] sssd security update
- https://sssd.io/release-notes/sssd-2.6.0.html
- https://sssd.io/release-notes/sssd-2.6.0.html