Advisory

On 09.07.2024 a security relevant correction has been released by SAP SE. The manufacturer resolves an issue within ABAP.

SAP Note 3483344 addresses "[CVE-2024-39592] Missing Authorization check in SAP PDCE" to prevent missing authorization check with a high risk for exploitation.

A workaround does exist, according to SAP Security Advisory team. It is advisable to implement the correction as monthly patch process , the team suggests.

Missing authority checks are still the most common security defect related to authorizations in custom code. Since SAP uses an explicit authorization model, an authority checks must be coded in order to be executed. If an explicit check is not coded, all users have access. This type of vulnerability not only exists in SAP standard it also exists in customer coding. Check your custom developments for vulnerabilities that pose a risk to your systems. SecurityBridge helps detect code vulnerabilities before they are implemented in production.

Risk specification

This note has been re-released with updated 'Correction instruction' information (a fix was also provided for SEM-BW 600). Elements of SAP PDCE allow an authenticated attacker to read sensitive information and resulting in escalation of privileges.

Solution

The correction deactivates the obsolete function. No regression testing required. Circumstances exist that prevent the timely installation of a patch provided by the manufacturer. In such cases, you may consider applying the suggested workaround as a temporary or compensating mitigation: "You can block all related functions of the whole function group. The whole component is obsolete in S/4HANA. Caution: The function exist in older releases too. In such systems, block function group if not in use. Options for workarounds: - Restrict authorizations for S_RFC by not granting authorizations for function UA_RFC_PDCE_FIELD_QUERY_R3 respective for function groups UA_RFC_PDCE and UA_RFC_CONNECTOR- Block the function UA_RFC_PDCE_FIELD_QUERY_R3 using UCON respective all functions of the function groups UA_RFC_PDCE (81 functions) and UA_RFC_CONNECTOR (8 functions)- Restrict the SLDW access control lists RFC_READ_TABLE_TABL (list of programs which can call the function) and RFC_READ_TABLE_CALL (list of tables which are accessible), see note 2246160- Check Security Audit Log events CUZ, DUL and DUM ".

Affected System

The advisory 3483344 describes a problem within an ABAP based systems of a specific version. Affected versions are described below. ABAP software is deployed in various software components and is widely used within the SAP product portfolio.

SAP NetWeaver Application Server (formally known as SAP Web Application Server) is a building block of SAP NetWeaver. It is the foundation for most software products developed by SAP SE. SAP NetWeaver systems exist with Java and/or ABAP stacks. The advisory could be relevant for single and dual-stack ABAP installations.

The advisory is valid for

S4CORE 102 ⁴⁸
S4CORE 103 ⁵²
S4COREOP 104 ³
S4COREOP 105
S4COREOP 106
S4COREOP 107
S4COREOP 108
SEM-BW 600
SEM-BW 602
SEM-BW 603
SEM-BW 604
SEM-BW 605
SEM-BW 634
SEM-BW 736
SEM-BW 746
SEM-BW 747
SEM-BW 748

Releated advisories

Disclaimer

SecurityBridge takes the security of SAP products very seriously. We very much encourage the responsible disclosure of security vulnerabilities. If you have detected a vulnerability concerning one of the SAP software products – either in the latest or in a former product version follow the guidelines and processes in accordance with the SAP portal page “Report a Security Vulnerability to SAP”.

The advisories found within the SecurityBridge advisory are generated and continuously enriched by our Team at SecurityBridge and affiliated security consultants, partners, customers of the SecurityBridge Platform, SAP support, and advisory groups.

We do not disclose zero-day vulnerabilities unless a security patch has been made available to the public. In such case, the platform only provides details on which version or signature updates are available within the SecurityBridge platform in order to monitor or measure the vulnerability.

In accordance with SAP guidelines, SecurityBridge only discloses issues where the fixing security note has been released. The vulnerability platform makes no references to available exploits or Proof of Concepts (PoC). Advisories and vulnerabilities will always mention the fixing security note or hints to the corresponding SAP documentation.

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Notifications

Affected system ABAP

CVSS 7.7

Component FIN-BA

Patch Day2024-11

Released on2024/07/09

SAP Note 3483344

Workaround Yes

Advisory

Risk specification

Solution

Affected System

Disclaimer

_{Affected system}
ABAP

_CVSS
7.7

_Component
FIN-BA

_{Patch Day}
2024-11

_{Released
on}
2024/07/09

_{SAP Note}
3483344

_Workaround
Yes