Samba: Security Vulnerabilities
In Samba, GnuTLS gnutls_rnd() can fail and give predictable random values.
CVSS Score
5.5
EPSS Score
0.001
Published
2022-09-01
The Samba AD DC includes checks when adding service principals names (SPNs) to an account to ensure that SPNs do not alias with those already in the database. Some of these checks are able to be bypassed if an account modification re-adds an SPN that was previously present on that account, such as one added when a computer is joined to a domain. An attacker who has the ability to write to an account can exploit this to perform a denial-of-service attack by adding an SPN that matches an existing service. Additionally, an attacker who can intercept traffic can impersonate existing services, resulting in a loss of confidentiality and integrity.
CVSS Score
8.8
EPSS Score
0.002
Published
2022-08-29
A flaw was found in Samba. Some SMB1 write requests were not correctly range-checked to ensure the client had sent enough data to fulfill the write, allowing server memory contents to be written into the file (or printer) instead of client-supplied data. The client cannot control the area of the server memory written to the file (or printer).
CVSS Score
4.3
EPSS Score
0.002
Published
2022-08-25
A flaw was found in Samba. The KDC accepts kpasswd requests encrypted with any key known to it. By encrypting forged kpasswd requests with its own key, a user can change other users' passwords, enabling full domain takeover.
CVSS Score
8.8
EPSS Score
0.003
Published
2022-08-25
A flaw was found in Samba. Samba AD users can cause the server to access uninitialized data with an LDAP add or modify the request, usually resulting in a segmentation fault.
CVSS Score
8.1
EPSS Score
0.003
Published
2022-08-25
A flaw was found in the Samba AD LDAP server. The AD DC database audit logging module can access LDAP message values freed by a preceding database module, resulting in a use-after-free issue. This issue is only possible when modifying certain privileged attributes, such as userAccountControl.
CVSS Score
5.4
EPSS Score
0.002
Published
2022-08-25
A flaw was found in Samba. The security vulnerability occurs when KDC and the kpasswd service share a single account and set of keys, allowing them to decrypt each other's tickets. A user who has been requested to change their password, can exploit this flaw to obtain and use tickets to other services.
CVSS Score
8.8
EPSS Score
0.002
Published
2022-08-25
A flaw was found in the way Samba handled file/directory metadata. This flaw allows an authenticated attacker with permissions to read or modify share metadata, to perform this operation outside of the share.
CVSS Score
6.8
EPSS Score
0.005
Published
2022-08-23
MaxQueryDuration not honoured in Samba AD DC LDAP
CVSS Score
6.5
EPSS Score
0.016
Published
2022-08-23
An issue was discovered in rsync before 3.2.5 that allows malicious remote servers to write arbitrary files inside the directories of connecting peers. The server chooses which files/directories are sent to the client. However, the rsync client performs insufficient validation of file names. A malicious rsync server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the rsync client target directory and subdirectories (for example, overwrite the .ssh/authorized_keys file).
CVSS Score
7.4
EPSS Score
0.003
Published
2022-08-02