ABAP BASIS function modules INSTCREATER3RFCDEST, INSTCREATETCPIPRFCDEST, and INSTCREATETCPIPRFCDEST in SAP BASIS (fixed in versions 7.0 to 7.02, 7.10 to 7.30, 7.31, 7.40, 7.50 to 7.53) do not perform necessary authorization checks in all circumstances for an authenticated user, resulting in escalation of privileges.

ABAP File Interface in, SAP BASIS, from 7.00 to 7.02, from 7.10 to 7.11, 7.30, 7.31, 7.40, from 7.50 to 7.52, allows an attacker to exploit insufficient validation of path information provided by users, thus characters representing "traverse to parent directory" are passed through to the file APIs.

SAP NetWeaver, SAP BASIS from 7.00 to 7.02, from 7.10 to 7.11, 7.30, 7.31, 7.40, from 7.50 to 7.52, contains code that allows you to execute arbitrary program code of the user's choice. A malicious user can therefore control the behaviour of the system or can potentially escalate privileges by executing malicious code without legitimate credentials.

Necessary authorization checks for an authenticated user, resulting in escalation of privileges, have been fixed in SAP Basis AS ABAP of SAP NetWeaver 700 to 750, from 750 onwards delivered as ABAP Platform.

ABAP Server (used in NetWeaver and Suite/ERP) and ABAP Platform does not sufficiently validate an XML document accepted from an untrusted source, leading to an XML External Entity (XEE) vulnerability. Fixed in Kernel 7.21 or 7.22, that is ABAP Server 7.00 to 7.31 and Kernel 7.45, 7.49 or 7.53, that is ABAP Server 7.40 to 7.52 or ABAP Platform. For more recent updates please refer to Security Note 2870067 (which supersedes the solution of Security Note 2736825) in the reference section below.

SAP Note Assistant tool (SAP BASIS from 7.00 to 7.02, from 7.10 to 7.11, 7.30, 7.31,7.40, from 7.50 to 7.52) supports upload of digitally signed note file of type 'SAR'. The digital signature verification is done together with the extraction of note file contained in the SAR archive. It is possible to append a tampered file to the SAR archive using SAPCAR tool and during the extraction, digital signature verification fails but the tampered file is extracted.