CVE-2020-25721

samba: Kerberos acceptors need easy access to stableAD identifiers (eg objectSid)

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.

CVSS 3.1 · 8.8 High EPSS 2.2% KEV · Not listed

Vendors

Samba

Products

Samba

CVE-2020-25719

samba: Samba AD DC did not always rely on the SID and PAC in Kerberos tickets

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.

CVSS 3.1 · 7.2 High EPSS 1.7% KEV · Not listed

Vendors

Canonical Debian Fedoraproject and 2 more

Products

Ubuntu Linux Debian Linux Fedora and 15 more

CVE-2020-25718

samba: Samba AD DC did not correctly sandbox Kerberos tickets issues by an RODC

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.

CVSS 3.1 · 8.8 High EPSS 1.7% KEV · Not listed

Vendors

Fedoraproject Samba

Products

Fedora Samba

CVE-2020-25717

samba: Active Directory (AD) domain user could become root on domain members

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.

CVSS 3.1 · 8.1 High EPSS 1.7% KEV · Not listed

Vendors

Canonical Debian Fedoraproject and 2 more

Products

Ubuntu Linux Debian Linux Fedora and 25 more

CVE-2020-17049

Kerberos KDC Security Feature Bypass Vulnerability

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.

CVSS 3.1 · 6.6 Medium EPSS 13.8% KEV · Not listed

Vendors

Microsoft Redhat Samba

Products

Windows Server 1903 Windows Server 1909 Windows Server 2004 and 10 more

CVE-2020-14387

rsync: rsync-ssl does not verify the hostname in the server certificate when using openssl

A flaw was found in rsync in versions since 3.2.0pre1. Rsync improperly validates certificate with host mismatch vulnerability. A remote, unauthenticated attacker could exploit the flaw by performing a man-in-the-middle attack using a valid certificate for another hostname which could compromise confidentiality and integrity of data transmitted using rsync-ssl. The highest threat from this vulnerability is to data confidentiality and integrity. This flaw affects rsync versions before 3.2.4.

CVSS 3.1 · 7.4 High EPSS 1.1% KEV · Not listed

Vendors

Samba

Products

Rsync

CVE-2020-14383

samba: An authenticated user can crash the DCE/RPC DNS with easily crafted records

A flaw was found in samba's DNS server. An authenticated user could use this flaw to the RPC server to crash. This RPC server, which also serves protocols other than dnsserver, will be restarted after a short delay, but it is easy for an authenticated non administrative attacker to crash it again as soon as it returns. The Samba DNS server itself will continue to operate, but many RPC services will not.

CVSS 3.1 · 6.5 Medium EPSS 2.2% KEV · Not listed

Vendors

Redhat Samba

Products

Enterprise Linux Samba

CVE-2020-14342

cifs-utils: shell command injection in mount.cifs

It was found that cifs-utils' mount.cifs was invoking a shell when requesting the Samba password, which could be used to inject arbitrary commands. An attacker able to invoke mount.cifs with special permission, such as via sudo rules, could use this flaw to escalate their privileges.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed

Vendors

Fedoraproject Opensuse Samba

Products

Fedora Leap Cifs-utils

CVE-2020-14323

samba: Unprivileged user can crash winbind

A null pointer dereference flaw was found in samba's Winbind service in versions before 4.11.15, before 4.12.9 and before 4.13.1. A local user could use this flaw to crash the winbind service causing denial of service.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Debian Fedoraproject Opensuse and 2 more

Products

Debian Linux Fedora Leap and 3 more

CVE-2020-14318

samba: Missing handle permissions check in SMB1/2/3 ChangeNotify

A flaw was found in the way samba handled file and directory permissions. An authenticated user could use this flaw to gain access to certain file and directory information which otherwise would be unavailable to the attacker.

CVSS 3.1 · 4.3 Medium EPSS 1.5% KEV · Not listed

Vendors

Redhat Samba

Products

Enterprise Linux Storage Samba

CVE-2020-14303

samba: Empty UDP packet DoS in Samba AD DC nbtd

A flaw was found in the AD DC NBT server in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4. A samba user could send an empty UDP packet to cause the samba server to crash.

CVSS 3.1 · 7.5 High EPSS 3.5% KEV · Not listed

Vendors

Canonical Debian Fedoraproject and 2 more

Products

Ubuntu Linux Debian Linux Fedora and 2 more

CVE-2020-10760

samba: LDAP Use-after-free in Samba AD DC Global Catalog with paged_results and VLV

A use-after-free flaw was found in all samba LDAP server versions before 4.10.17, before 4.11.11, before 4.12.4 used in a AC DC configuration. A Samba LDAP user could use this flaw to crash samba.

CVSS 3.1 · 6.5 Medium EPSS 2.7% KEV · Not listed

Vendors

Canonical Fedoraproject Opensuse and 1 more

Products

Ubuntu Linux Fedora Leap and 1 more

CVE-2020-10745

samba: Parsing and packing of NBT and DNS packets can consume excessive CPU

A flaw was found in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4 in the way it processed NetBios over TCP/IP. This flaw allows a remote attacker could to cause the Samba server to consume excessive CPU use, resulting in a denial of service. This highest threat from this vulnerability is to system availability.

CVSS 3.1 · 7.5 High EPSS 3.9% KEV · Not listed

Vendors

Debian Fedoraproject Opensuse and 1 more

Products

Debian Linux Fedora Leap and 1 more

CVE-2020-10730

samba: NULL pointer de-reference and use-after-free in Samba AD DC LDAP Server with ASQ, VLV and paged_results

A NULL pointer dereference, or possible use-after-free flaw was found in Samba AD LDAP server in versions before 4.10.17, before 4.11.11 and before 4.12.4. Although some versions of Samba shipped with Red Hat Enterprise Linux do not support Samba in AD mode, the affected code is shipped with the libldb package. This flaw allows an authenticated user to possibly trigger a use-after-free or NULL pointer dereference. The highest threat from this vulnerability is to system availability.

CVSS 3.1 · 6.5 Medium EPSS 2.5% KEV · Not listed

Vendors

Debian Fedoraproject Opensuse and 2 more

Products

Debian Linux Fedora Leap and 3 more

CVE-2020-10704

samba: LDAP Denial of Service (stack overflow) in Samba AD DC

A flaw was found when using samba as an Active Directory Domain Controller. Due to the way samba handles certain requests as an Active Directory Domain Controller LDAP server, an unauthorized user can cause a stack overflow leading to a denial of service. The highest threat from this vulnerability is to system availability. This issue affects all samba versions before 4.10.15, before 4.11.8 and before 4.12.2.

CVSS 3.1 · 7.5 High EPSS 3.5% KEV · Not listed

Vendors

Debian Fedoraproject Opensuse and 1 more

Products

Debian Linux Fedora Leap and 1 more

CVE-2020-10700

samba: Use-after-free in Samba AD DC LDAP Server with ASQ

A use-after-free flaw was found in the way samba AD DC LDAP servers, handled 'Paged Results' control is combined with the 'ASQ' control. A malicious user in a samba AD could use this flaw to cause denial of service. This issue affects all samba versions before 4.10.15, before 4.11.8 and before 4.12.2.

CVSS 3.1 · 5.3 Medium EPSS 2.0% KEV · Not listed

Vendors

Fedoraproject Opensuse Samba

Products

Fedora Leap Samba

CVE-2019-3880

samba: save registry file outside share as unprivileged user

A flaw was found in the way samba implemented an RPC endpoint emulating the Windows registry service API. An unprivileged attacker could use this flaw to create a new registry hive file anywhere they have unix permissions which could lead to creation of a new file in the Samba share. Versions before 4.8.11, 4.9.6 and 4.10.2 are vulnerable.

CVSS 3.1 · 5.4 Medium EPSS 3.2% KEV · Not listed

Vendors

Debian Fedoraproject Opensuse and 2 more

Products

Debian Linux Fedora Leap and 4 more

CVE-2019-3824

samba: Out of bound read in ldb_wildcard_compare in Samba AD DC

A flaw was found in the way an LDAP search expression could crash the shared LDAP server process of a samba AD DC in samba before version 4.10. An authenticated user, having read permissions on the LDAP server, could use this flaw to cause denial of service.

CVSS 3.0 · 6.5 Medium EPSS 2.8% KEV · Not listed

Vendors

Canonical Debian Samba

Products

Ubuntu Linux Debian Linux Samba

CVE-2019-3800

CF CLI writes the client id and secret to config file

CF CLI version prior to v6.45.0 (bosh release version 1.16.0) writes the client id and secret to its config file when the user authenticates with --client-credentials flag. A local authenticated malicious user with access to the CF CLI config file can act as that client, who is the owner of the leaked credentials.

CVSS 3.0 · 6.3 Medium EPSS 2.1% KEV · Not listed

Vendors

Anynines Apigee Appdynamics and 24 more

Products

Elasticsearch Logme Mongodb and 52 more

CVE-2019-14902

samba: Replication of ACLs set to inherit down a subtree on AD Directory not automatic

There is an issue in all samba 4.11.x versions before 4.11.5, all samba 4.10.x versions before 4.10.12 and all samba 4.9.x versions before 4.9.18, where the removal of the right to create or modify a subtree would not automatically be taken away on all domain controllers.

CVSS 3.1 · 5.4 Medium EPSS 1.4% KEV · Not listed

Vendors

Canonical Debian Opensuse and 1 more

Products

Ubuntu Linux Debian Linux Leap and 1 more