CVE-2020-4904

Vulnerability

A cross-site request forgery (CSRF) vulnerability exists in IBM Financial Transaction Manager for SWIFT Services for Multiplatforms version 3.2.4 [1]. The flaw allows an attacker to craft malicious requests that, when executed by an authenticated user, are treated as legitimate by the application. No special configuration or user privilege beyond normal application access is required for the vulnerable code path to be reachable.

Exploitation

An attacker with network access to the application can exploit this vulnerability by tricking an authenticated user into clicking a malicious link or visiting a crafted webpage [1]. The attacker does not need prior authentication or write access to the system. The user's browser automatically includes authentication cookies or credentials in the forged request, enabling the attacker to perform actions (such as changing settings or initiating transactions) with the victim's privileges [1].

Impact

Successful exploitation allows the attacker to execute malicious and unauthorized actions transmitted from the authenticated user's browser [1]. The impact is at the same privilege level as the victim user, potentially leading to unauthorized modification of configuration, transaction manipulation, or data disclosure, depending on the user's permissions [1].

Mitigation

IBM has released fixes as part of the security bulletin available at the referenced page [1]. Users should apply the latest updates for IBM Financial Transaction Manager for SWIFT Services for Multiplatforms 3.2.4 to resolve this vulnerability [1]. No workarounds were documented in the available reference.