11650 matches found
Samba AD DC did not always rely on the SID
Description Samba as an Active Directory Domain Controller is based on Kerberos, which provides name-based authentication. These names are often then used for authorization. However Microsoft Windows and Active Direcory is SID-based. SIDs in Windows, similar to UIDs in Linux/Unix if managed well...
Samba AD DC did not do suffienct access and
Description Samba as an Active Directory Domain Controller has to take care to protect a number of sensitive attributes, and to follow a security model from Active Directory that relies totally on the intersection of NT security descriptors and the underlying X.500 Directory Access Protocol as th...
Samba 信息泄露漏洞
Samba is the standard Windows interoperability suite for Linux and Unix. Samba is vulnerable to a permission permission and access control issue, which stems from a flaw found in the way samba can support RODCs read-only domain controllers as Active Directory domain controllers. An attacker could...
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...
Kerberos acceptors need easy access to stable
Description In order to avoid issues like CVE-2020-25717 AD Kerberos accepting services need access to unique, and ideally long-term stable identifiers of a user to perform authorization. The AD PAC provides this, but the most useful information is kept in a buffer which is NDR encoded, which mea...
UBUNTU-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...
UBUNTU-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...
UBUNTU-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...
UBUNTU-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 cou...
Samba 输入验证错误漏洞
Samba is the standard Windows interoperability suite for Linux and Unix. Samba is vulnerable to authorization issues, and no details of the vulnerability are currently available...
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...
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...
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 cou...
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...
Samba Releases Security Updates
The Samba Team has released security updates to address vulnerabilities in multiple versions of Samba. An attacker could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the following Samba security announcements and...
Subsequent DCE/RPC fragment injection vulnerability
Description Samba implements DCE/RPC, and in most cases it is provided over and protected by the underlying SMB transport, with protections like 'SMB signing'. However there are other cases where large DCE/RPC request payloads are exchanged and fragmented into several pieces. If this happens over...
Use after free in Samba AD DC RPC server
Description 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...
DSA-5003-1 samba - security update
Bulletin has no description...
UBUNTU-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...