SAP GUI for Windows & RFC service credentials are incorrectly stored in the memory of the program allowing an unauthenticated attacker to access information within systems, resulting in privilege escalation. On successful exploitation, this could result in disclosure of highly sensitive information. This has no impact on integrity, and availability.

SAP GUI for Windows stores user input on the client PC to improve usability. Under very specific circumstances an attacker with administrative privileges or access to the victim�s user directory on the Operating System level would be able to read this data. Depending on the user input provided in transactions, the disclosed data could range from non-critical data to highly sensitive data, causing high impact on confidentiality of the application.

Under certain conditions, the memory of SAP GUI for Windows contains the password used to log on to an SAP system, which might allow an attacker to get hold of the password and impersonate the affected user. As a result, it has a high impact on the confidentiality but there is no impact on the integrity and availability.

SAP GUI for Windows - version 7.70, 8.0, allows an unauthorized attacker to gain NTLM authentication information of a victim by tricking it into clicking a prepared shortcut file. Depending on the authorizations of the victim, the attacker can read and modify potentially sensitive information after successful exploitation.

An information disclosure vulnerability exists in SAP GUI for Windows - versions < 7.60 PL13, 7.70 PL4, which allows an attacker with sufficient privileges on the local client-side PC to obtain an equivalent of the user’s password. With this highly sensitive data leaked, the attacker would be able to logon to the backend system the SAP GUI for Windows was connected to and launch further attacks depending on the authorizations of the user.

In specific situations SAP GUI for Windows until and including 7.60 PL9, 7.70 PL0, forwards a user to specific malicious website which could contain malware or might lead to phishing attacks to steal credentials of the victim.

SAP GUI 7.2 through 7.5 allows remote attackers to bypass intended security policy restrictions and execute arbitrary code via a crafted ABAP code, aka SAP Security Note 2407616.