SAP Basis prior 7.53 ABAP BASIS improper authorization

Summaryinfo

A vulnerability identified as critical has been detected in SAP Basis. This affects an unknown function of the component ABAP BASIS. Performing a manipulation results in improper authorization. This vulnerability is reported as CVE-2019-0279. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in SAP Basis. This affects some unknown functionality of the component ABAP BASIS. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

ABAP BASIS function modules INST_CREATE_R3_RFC_DEST, INST_CREATE_TCPIP_RFCDEST, and INST_CREATE_TCPIP_RFC_DEST 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.

The bug was discovered 04/09/2019. The weakness was disclosed 04/10/2019 (Website). The advisory is shared at launchpad.support.sap.com. This vulnerability is uniquely identified as CVE-2019-0279 since 11/26/2018. It is possible to initiate the attack remotely. A authentication is required for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 7.0, 7.01, 7.02, 7.10, 7.20, 7.30, 7.31, 7.40, 7.50, 7.51, 7.52 or 7.53 eliminates this vulnerability.

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Productinfo

Vendor

• SAP

Name

• Basis

License

• commercial

Website

• Vendor: https://www.sap.com/

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