Advisory

On 21.12.2021 a security relevant correction has been released by SAP SE. The manufacturer resolves an issue within SAP BTP Kyma runtime.

SAP Note 3132744 addresses "[CVE-2021-44228] Remote Code Execution vulnerability associated with Apache Log4j 2 component used in SAP BTP Kyma" to prevent code injection with a hot news 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.

Risk specification

The component log4j allows an attacker to execute malicious code when he is in control of log messages or message parameter.

Solution

Apply manual steps described in the note to identify affected systems and implement the fix to the vulnerability. 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: "If possible, set the java parameter log4j2.formatMsgNoLookups=true".

The advisory is valid for

nan ¹⁹

Releated advisories

Disclaimer

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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.

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Notifications

Affected system SAP BTP Kyma runtime

CVSS 10.0

Component BC-CP-XF-KYMA

Patch Day2021-12

Released on2021/12/21

SAP Note 3132744

Workaround Yes

Advisory

Risk specification

Solution

Disclaimer

_{Affected system}
SAP BTP Kyma runtime

_CVSS
10.0

_Component
BC-CP-XF-KYMA

_{Patch Day}
2021-12

_{Released
on}
2021/12/21

_{SAP Note}
3132744

_Workaround
Yes