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 3302710 was released on 14.03.2023 and deals with "[CVE-2023-27895] Information Disclosure vulnerability in SAP Authenticator for Android" within SAP Authenticator for Android. We advice you to follow the instructions, to resolve information disclosure with a medium potential for exploitation in component BC-IAM-SSO-OTP.

According to SAP Security Advisory team a workaround does not exist. It is advisable to implement the correction as monthly patch process.

Information disclosure is when an application fails to properly protect sensitive and confidential information from parties that are not supposed to have access to the subject matter in normal circumstances.
Carefully review every information disclosure vulnerablity in regards to disclosure obligations post-GDPR for ‘Personal data’ under the Data Protection Act 2018.

Risk specification

SAP Authenticator allows the screen to be captured if an authorized attacker installs a malicious app on the mobile device. During the token setup, the attacker could extract the current views of the OTP and the secret OTP alphanumeric token.

Solution

The application no longer allows the screen to be captured.

The advisory is valid for

nan ¹⁹

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...

CVSS 6.1

Component BC-IAM-SSO-OTP

Patch Day2023-03

Released on2023/03/14

SAP Note 3302710

Workaround No

Advisory

Risk specification

Solution

Disclaimer

_{Affected system}
SAP...

_CVSS
6.1

_Component
BC-IAM-SSO-OTP

_{Patch Day}
2023-03

_{Released
on}
2023/03/14

_{SAP Note}
3302710

_Workaround
No