Advisory

A note with CVSS 5.3 for component BC-CST-MS was released by SAP on 10.05.2022. The correction/advisory 3145702 was described with "[CVE-2022-29616] Memory Corruption vulnerability in SAP Host Agent, SAP NetWeaver and ABAP Platform" and affects the system type SAP Host AgentKernel.

A workaround does not exist, according to SAP Security Advisory team. It is advisable to implement the correction as part of maintenance.

The vulnerability addressed is denial of service (dos) within SAP Host AgentKernel.

Denial of Service (DoS) attacks that take a system offline may lead to significant cost for the company, studies quantify the costs in average between 4 and 5 millions dollars. Business continuity requires SAP systems staying online. The CVSS scores or vulnerability descriptions are not enough to represent how a simple bug can lead to a significant loss for companies.

Risk specification

SAP Host Agent, SAP NetWeaver and ABAP Platform, allow an unauthenticated attacker to leverage logical errors in memory management to cause memory corruption which impacts service availability.

Solution

The Out-of-bounds write access is prevented by checking the value length to be a positive integer. Customer needs to get msg_server from scs.sar and sapstartsrv either from scs.sar, sapwebdisp.sar or sapexe.sar. Also an update to the newest SAP Host Agent is necessary.

The advisory is valid for

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 SAP Host AgentKernel

CVSS 5.3

Component BC-CST-MS

Patch Day2022-05

Released on2022/05/10

SAP Note 3145702

Workaround No

Advisory

Risk specification

Solution

Disclaimer

_{Affected system}
SAP Host AgentKernel

_CVSS
5.3

_Component
BC-CST-MS

_{Patch Day}
2022-05

_{Released
on}
2022/05/10

_{SAP Note}
3145702

_Workaround
No