A path traversal vulnerability was identified in Samba when processing client pipe names connecting to Unix domain sockets within a private directory. Samba typically uses this mechanism to connect SMB clients to remote procedure call (RPC) services like SAMR LSA or SPOOLSS, which Samba initiates on demand. However, due to inadequate sanitization of incoming client pipe names, allowing a client to send a pipe name containing Unix directory traversal characters (../). This could result in SMB clients connecting as root to Unix domain sockets outside the private directory. If an attacker or client managed to send a pipe name resolving to an external service using an existing Unix domain socket, it could potentially lead to unauthorized access to the service and consequential adverse events, including compromise or service crashes.
Max CVSS
9.8
EPSS Score
0.24%
Published
2023-11-03
Updated
2024-01-02
Since the Windows Kerberos RC4-HMAC Elevation of Privilege Vulnerability was disclosed by Microsoft on Nov 8 2022 and per RFC8429 it is assumed that rc4-hmac is weak, Vulnerable Samba Active Directory DCs will issue rc4-hmac encrypted tickets despite the target server supporting better encryption (eg aes256-cts-hmac-sha1-96).
Max CVSS
9.8
EPSS Score
0.11%
Published
2023-03-06
Updated
2023-09-17
Heimdal before 7.7.1 allows remote attackers to execute arbitrary code because of an invalid free in the ASN.1 codec used by the Key Distribution Center (KDC).
Max CVSS
9.8
EPSS Score
1.45%
Published
2022-12-25
Updated
2023-10-08
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.
Max CVSS
9.0
EPSS Score
13.60%
Published
2022-02-21
Updated
2023-09-17
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.
Max CVSS
9.0
EPSS Score
0.12%
Published
2022-02-18
Updated
2023-09-17
<p>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).</p> <p>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.</p> <p>The update addresses this vulnerability by changing how the KDC validates service tickets used with KCD.</p>
Max CVSS
9.0
EPSS Score
2.74%
Published
2020-11-11
Updated
2023-12-31

CVE-2020-1472

Known exploited
Public exploit
Used for ransomware
An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC). An attacker who successfully exploited the vulnerability could run a specially crafted application on a device on the network. To exploit the vulnerability, an unauthenticated attacker would be required to use MS-NRPC to connect to a domain controller to obtain domain administrator access. Microsoft is addressing the vulnerability in a phased two-part rollout. These updates address the vulnerability by modifying how Netlogon handles the usage of Netlogon secure channels. For guidelines on how to manage the changes required for this vulnerability and more information on the phased rollout, see How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472 (updated September 28, 2020). When the second phase of Windows updates become available in Q1 2021, customers will be notified via a revision to this security vulnerability. If you wish to be notified when these updates are released, we recommend that you register for the security notifications mailer to be alerted of content changes to this advisory. See Microsoft Technical Security Notifications.
Max CVSS
10.0
EPSS Score
32.19%
Published
2020-08-17
Updated
2024-01-19
CISA KEV Added
2021-11-03
A flaw was found in samba versions 4.9.x up to 4.9.13, samba 4.10.x up to 4.10.8 and samba 4.11.x up to 4.11.0rc3, when certain parameters were set in the samba configuration file. An unauthenticated attacker could use this flaw to escape the shared directory and access the contents of directories outside the share.
Max CVSS
9.1
EPSS Score
0.57%
Published
2019-09-03
Updated
2020-08-18
Use-after-free vulnerability in Samba 4.x before 4.7.3 allows remote attackers to execute arbitrary code via a crafted SMB1 request.
Max CVSS
9.8
EPSS Score
77.32%
Published
2017-11-27
Updated
2022-08-16

CVE-2017-7494

Known exploited
Public exploit
Used for ransomware
Samba since version 3.5.0 and before 4.6.4, 4.5.10 and 4.4.14 is vulnerable to remote code execution vulnerability, allowing a malicious client to upload a shared library to a writable share, and then cause the server to load and execute it.
Max CVSS
10.0
EPSS Score
97.26%
Published
2017-05-30
Updated
2022-08-16
CISA KEV Added
2023-03-30

CVE-2015-0240

Public exploit
The Netlogon server implementation in smbd in Samba 3.5.x and 3.6.x before 3.6.25, 4.0.x before 4.0.25, 4.1.x before 4.1.17, and 4.2.x before 4.2.0rc5 performs a free operation on an uninitialized stack pointer, which allows remote attackers to execute arbitrary code via crafted Netlogon packets that use the ServerPasswordSet RPC API, as demonstrated by packets reaching the _netr_ServerPasswordSet function in rpc_server/netlogon/srv_netlog_nt.c.
Max CVSS
10.0
EPSS Score
97.40%
Published
2015-02-24
Updated
2023-02-13

CVE-2012-1182

Public exploit
The RPC code generator in Samba 3.x before 3.4.16, 3.5.x before 3.5.14, and 3.6.x before 3.6.4 does not implement validation of an array length in a manner consistent with validation of array memory allocation, which allows remote attackers to execute arbitrary code via a crafted RPC call.
Max CVSS
10.0
EPSS Score
49.37%
Published
2012-04-10
Updated
2018-10-30
Unspecified vulnerability on HP NonStop Servers with software H06.x through H06.23.00 and J06.x through J06.12.00, when Samba is used, allows remote authenticated users to execute arbitrary code via unknown vectors.
Max CVSS
9.0
EPSS Score
0.33%
Published
2011-10-02
Updated
2019-10-09
Multiple format string vulnerabilities in client/client.c in smbclient in Samba 3.2.0 through 3.2.12 might allow context-dependent attackers to execute arbitrary code via format string specifiers in a filename.
Max CVSS
9.3
EPSS Score
1.74%
Published
2009-06-25
Updated
2017-08-17
Stack-based buffer overflow in the send_mailslot function in nmbd in Samba 3.0.0 through 3.0.27a, when the "domain logons" option is enabled, allows remote attackers to execute arbitrary code via a GETDC mailslot request composed of a long GETDC string following an offset username in a SAMLOGON logon request.
Max CVSS
9.3
EPSS Score
97.37%
Published
2007-12-13
Updated
2018-10-30
Stack-based buffer overflow in the reply_netbios_packet function in nmbd/nmbd_packets.c in nmbd in Samba 3.0.0 through 3.0.26a, when operating as a WINS server, allows remote attackers to execute arbitrary code via crafted WINS Name Registration requests followed by a WINS Name Query request.
Max CVSS
9.3
EPSS Score
96.38%
Published
2007-11-16
Updated
2018-10-30
Stack-based buffer overflow in nmbd in Samba 3.0.0 through 3.0.26a, when configured as a Primary or Backup Domain controller, allows remote attackers to have an unknown impact via crafted GETDC mailslot requests, related to handling of GETDC logon server requests.
Max CVSS
9.3
EPSS Score
4.52%
Published
2007-11-16
Updated
2018-10-30

CVE-2007-2446

Public exploit
Multiple heap-based buffer overflows in the NDR parsing in smbd in Samba 3.0.0 through 3.0.25rc3 allow remote attackers to execute arbitrary code via crafted MS-RPC requests involving (1) DFSEnum (netdfs_io_dfs_EnumInfo_d), (2) RFNPCNEX (smb_io_notify_option_type_data), (3) LsarAddPrivilegesToAccount (lsa_io_privilege_set), (4) NetSetFileSecurity (sec_io_acl), or (5) LsarLookupSids/LsarLookupSids2 (lsa_io_trans_names).
Max CVSS
10.0
EPSS Score
96.49%
Published
2007-05-14
Updated
2018-10-16

CVE-2004-2687

Public exploit
distcc 2.x, as used in XCode 1.5 and others, when not configured to restrict access to the server port, allows remote attackers to execute arbitrary commands via compilation jobs, which are executed by the server without authorization checks.
Max CVSS
9.3
EPSS Score
92.48%
Published
2004-12-31
Updated
2008-09-05
Integer overflow in the Samba daemon (smbd) in Samba 2.x and 3.0.x through 3.0.9 allows remote authenticated users to cause a denial of service (application crash) and possibly execute arbitrary code via a Samba request with a large number of security descriptors that triggers a heap-based buffer overflow.
Max CVSS
10.0
EPSS Score
9.91%
Published
2005-01-10
Updated
2018-10-30
Buffer overflow in the QFILEPATHINFO request handler in Samba 3.0.x through 3.0.7 may allow remote attackers to execute arbitrary code via a TRANSACT2_QFILEPATHINFO request with a small "maximum data bytes" value.
Max CVSS
10.0
EPSS Score
95.91%
Published
2005-01-27
Updated
2018-10-30
Buffer overflow in the Samba Web Administration Tool (SWAT) in Samba 3.0.2 to 3.0.4 allows remote attackers to execute arbitrary code via an invalid base-64 character during HTTP basic authentication.
Max CVSS
10.0
EPSS Score
96.40%
Published
2004-07-27
Updated
2017-10-11

CVE-2003-0201

Public exploit
Buffer overflow in the call_trans2open function in trans2.c for Samba 2.2.x before 2.2.8a, 2.0.10 and earlier 2.0.x versions, and Samba-TNG before 0.3.2, allows remote attackers to execute arbitrary code.
Max CVSS
10.0
EPSS Score
97.04%
Published
2003-05-05
Updated
2018-10-30
Multiple buffer overflows in Samba before 2.2.8a may allow remote attackers to execute arbitrary code or cause a denial of service, as discovered by the Samba team and a different vulnerability than CVE-2003-0201.
Max CVSS
10.0
EPSS Score
4.49%
Published
2003-05-05
Updated
2018-10-30
Buffer overflow in the SMB/CIFS packet fragment re-assembly code for SMB daemon (smbd) in Samba before 2.2.8, and Samba-TNG before 0.3.1, allows remote attackers to execute arbitrary code.
Max CVSS
10.0
EPSS Score
96.33%
Published
2003-03-31
Updated
2018-10-19
29 vulnerabilities found
1 2
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