Zammad: Security Vulnerabilities
Zammad 5.2.1 is vulnerable to Incorrect Access Control. Zammad's asset handling mechanism has logic to ensure that customer users are not able to see personal information of other users. This logic was not effective when used through a web socket connection, so that a logged-in attacker would be able to fetch personal data of other users by querying the Zammad API. This issue is fixed in , 5.2.2.
CVSS Score
6.5
EPSS Score
0.001
Published
2022-09-27
Zammad 5.2.1 has a fine-grained permission model that allows to configure read-only access to tickets. However, agents were still wrongly able to perform some operations on such tickets, like adding and removing links, tags. and related answers. This issue has been fixed in 5.2.2.
CVSS Score
4.3
EPSS Score
0.001
Published
2022-09-27
Zammad 5.2.0 suffers from Incorrect Access Control. Zammad did not correctly perform authorization on certain attachment endpoints. This could be abused by an unauthenticated attacker to gain access to attachments, such as emails or attached files.
CVSS Score
7.5
EPSS Score
0.003
Published
2022-08-08
In Zammad 5.2.0, an attacker could manipulate the rate limiting in the 'forgot password' feature of Zammad, and thereby send many requests for a known account to cause Denial Of Service by many generated emails which would also spam the victim.
CVSS Score
7.5
EPSS Score
0.002
Published
2022-08-08
In Zammad 5.2.0, customers who have secondary organizations assigned were able to see all organizations of the system rather than only those to which they are assigned.
CVSS Score
6.5
EPSS Score
0.003
Published
2022-08-08
Zammad 5.2.0 is vulnerable to privilege escalation. Zammad has a prevention against brute-force attacks trying to guess login credentials. After a configurable amount of attempts, users are invalidated and logins prevented. An attacker might work around this prevention, enabling them to send more than the configured amount of requests before the user invalidation takes place.
CVSS Score
9.8
EPSS Score
0.002
Published
2022-08-08
An access control issue in Zammad v5.0.3 broadcasts administrative configuration changes to all users who have an active application instance, including settings that should only be visible to authenticated users.
CVSS Score
4.3
EPSS Score
0.003
Published
2022-04-27
An access control issue in Zammad v5.0.3 allows attackers to write entries to the CTI caller log without authentication. This vulnerability can allow attackers to execute phishing attacks or cause a Denial of Service (DoS).
CVSS Score
9.1
EPSS Score
0.004
Published
2022-04-27
A lack of password length restriction in Zammad v5.1.0 allows for the creation of extremely long passwords which can cause a Denial of Service (DoS) during password verification.
CVSS Score
7.5
EPSS Score
0.004
Published
2022-04-27
A lack of rate limiting in the 'forgot password' feature of Zammad v5.1.0 allows attackers to send an excessive amount of reset requests for a legitimate user, leading to a possible Denial of Service (DoS) via a large amount of generated e-mail messages.
CVSS Score
7.5
EPSS Score
0.005
Published
2022-04-27