Advisory

SAP takes the security of its vast product portfolio very seriously and thus releases security fixes for vulnerabilities reported by external researchers and their customers every second Tuesday of the month.

SAP Note 2695776 was released on 14.01.2020 and deals with "Missing Authorization Check in SAP Mobile Platform Native SDK, Android" within SAP Mobile Platform. We advice you to follow the instructions, to resolve missing authorization check with a high potential for exploitation in component MOB-SDK-ODP.

According to SAP Security Advisory team a workaround exists. It is advisable to implement the correction as project.

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

By default applications useing the SAP Mobile Platform Native SDK does not properly set nessecary permissions and thereby allow attackers to obtains sensitive data.

Solution

The SDK Library now includes a default signature permission, so that by default only applications sihned with the same developer key are able to communicate. Alternativly, the consulting team has proposed the following: "If permissions are defined by the application itself rather than relying on the default, the application may not be vulnerable.". The suggestion may be considered, as a workaround or compensating mitigation. We recommend installing/applying the correction wherever possible and as soon as possible. Base your decision on whether or not to apply the patch on your companies and systems risk perspective and consider the provided CVSS 7.4 score.

The advisory is valid for

SMP_NATIVE_SDK 3.1

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 Mobile Platform

CVSS 7.4

Component MOB-SDK-ODP

Patch Day2020-02

Released on2020/01/14

SAP Note 2695776

Workaround Yes

Advisory

Risk specification

Solution

Disclaimer

_{Affected system}
SAP Mobile Platform

_CVSS
7.4

_Component
MOB-SDK-ODP

_{Patch Day}
2020-02

_{Released
on}
2020/01/14

_{SAP Note}
2695776

_Workaround
Yes