CVE-2018-1392

Vulnerability

CVE-2018-1392 is an input validation vulnerability in the web services component of IBM Financial Transaction Manager for ACH Services for Multi-Platform. Versions 3.0.4 and 3.1.0 are affected. An authenticated user can exploit this by sending a specially crafted command to obtain sensitive information [1].

Exploitation

To exploit, an attacker must have network access and valid authentication credentials. The CVSS v3.0 vector (AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N) indicates high attack complexity, meaning successful exploitation requires careful crafting of the request. The authenticated user sends the malicious command to the vulnerable web service, triggering the information disclosure [1].

Impact

Successful exploitation results in a low confidentiality impact—sensitive information is disclosed to the attacker. There is no impact to integrity or availability, and the attacker's privilege level remains unchanged [1].

Mitigation

IBM has addressed this vulnerability in a security bulletin, but neither a specific fixed version nor a workaround is provided in the available reference. Administrators should apply the applicable fix as recommended by IBM [1].