Advisory

A note with CVSS 5.9 for component BC-CST-IC was released by SAP on 14.01.2020. The correction/advisory 2848498 was described with "[CVE-2020-6304] Denial of service (DOS) in SAP NetWeaver Internet Communication Manager" and affects the system type Kernel.

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 Kernel.

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

By sending specially crafted packets to the IIOP or P4 service, an unauthenticated attacker ca caue the ICM process to crash, resulting in an Denial of service attack.

Solution

The buffer overflow, resulting into the crach of the ICM process is now detected and programmatically managed.

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 Kernel

CVSS 5.9

Component BC-CST-IC

Patch Day2020-01

Released on2020/01/14

SAP Note 2848498

Workaround No

Advisory

Risk specification

Solution

Disclaimer

_{Affected system}
Kernel

_CVSS
5.9

_Component
BC-CST-IC

_{Patch Day}
2020-01

_{Released
on}
2020/01/14

_{SAP Note}
2848498

_Workaround
No