IBM i 7.2, 7.3, 7.4, 7.5, and 7.6 is vulnerable to authentication and authorization attacks due to incorrect validation processing in IBM i Netserver. A malicious actor could use the weaknesses, in conjunction with brute force authentication attacks or to bypass authority restrictions, to access the server.

IBM i 7.3, 7.4, 7.5, and 7.5 is vulnerable to a host header injection attack caused by improper neutralization of HTTP header content by IBM Navigator for i. An authenticated user can manipulate the host header in HTTP requests to change domain/IP address which may lead to unexpected behavior.

IBM i 7.3, 7.4, and 7.5 is vulnerable to bypassing Navigator for i interface restrictions. By sending a specially crafted request, an authenticated attacker could exploit this vulnerability to remotely perform operations that the user is not allowed to perform when using Navigator for i.

IBM i 7.3, 7.4, and 7.5

is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.

IBM i 7.2, 7.3, 7.4, and 7.5 Service Tools Server (SST) is vulnerable to SST user enumeration by a remote attacker. This vulnerability can be used by a malicious actor to gather information about SST users that can be targeted in further attacks. IBM X-Force ID: 287538.

IBM i 7.3, 7.4, 7.5, IBM i Db2 Mirror for i 7.4 and 7.5 web browser clients may leave clear-text passwords in browser memory that can be viewed using common browser tools before the memory is garbage collected. A malicious actor with access to the victim's PC could exploit this vulnerability to gain access to the IBM i operating system. IBM X-Force ID: 272532.

IBM Navigator for i 7.3, 7.4, and 7.5 could allow an authenticated user to access the file system and download files they are authorized to but not while using this interface. The remote authenticated user can bypass the interface checks by modifying a parameter thereby gaining access to their files through this interface. IBM X-Force ID: 239303.

IBM Navigator for i 7.3, 7.4 and 7.5 could allow an authenticated user to access IBM Navigator for i log files they are authorized to but not while using this interface. The remote authenticated user can bypass the interface checks and download log files by modifying servlet filter. IBM X-Force ID: 239301.

IBM Navigator for i 7.3, 7.4, and 7.5 could allow an authenticated user to obtain sensitive information for an object they are authorized to but not while using this interface. By performing a UNION based SQL injection an attacker could see file permissions through this interface. IBM X-Force ID: 239304.

IBM Navigator for i 7.3, 7.4, and 7.5 could allow an authenticated user to obtain sensitive information they are authorized to but not while using this interface. By performing an SQL injection an attacker could see user profile attributes through this interface. IBM X-Force ID: 239305.

IBM i 7.2, 7.3, 7.4, and 7.5 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. IBM X-Force ID: 230516.