High Severity
Affected system
SAP Solution Manager
CVSS
8.5
Component
SV-SMG-MON-EEM
Patch Day
2020-12
Released on
2020/12/08
SAP Note
2983204
Workaround
Yes
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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 2983204 was released on 08.12.2020 and deals with "[CVE-2020-26837] Multiple Vulnerabilities in SAP Solution Manager 7.2 (User Experience Monitoring)" within SAP Solution Manager. We advice you to follow the instructions, to resolve missing authorization check with a high potential for exploitation in component SV-SMG-MON-EEM.

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

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

An authenticated non-administrative user of SAP Solution Manager 7.2 (User Experience Monitoring) can deploy a malicious script that can exploit an existing path traversal vulnerability to fully compromise confidentiality exposing elements of the file system and partially compromise availability by making certain services unavailable SAP Solution Manager 7.2 (User Experience Monitoring) does not perform necessary authorization checks for an authenticated user, allowing the use of operations that should be restricted to administrators.

Solution

The user authorization checks of the User-Experience Monitoring administration service are now properly enforced.  Alternativly, the consulting team has proposed the following: "The workaround will temporarily deactivate the EemAdmin web-service on the SAP Solution Manager Java stack.". 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 8.5 score.

Affected System

SAP Solution Manager was introduced by SAP to cover the complete application lifecycle of the IT solutions running on premise, hybrid or in the cloud. SolMan requires an RFC connection to all managed systems in a landscape to fulfill its tasks. Cyber attackers may target the Solution Manager system as lateral movements can be achieved.

SAP Solution Manager is a must-have for SAP customers. It addresses a set of important aspects of Application Lifecycle Management (ALM) for SAP. Examples:

  • IT Service Management
  • Data Volumn Management
  • Test Suite
  • Process Management
  • more

Additonal resources

The advisory is valid for

 

 

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.

SecurityBridge - Code vulnerabilty analysis

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