Denial of Service Vulnerability in SAP SolMan
Impact On Business
Any authenticated user of the Solution Manager is able to either perform a Denial of Service or read sensitive information from every SMD Agent connected to the targeted SolMan.
Affected Components Description
SAP SolMan 7.2 introduces a bunch of web services which run on top of the SAP Java NetWeaver stack. The affected versions have a vulnerable web service exposed.
Affected components:
- Solman 7.20
- Solman Java Stack NW 7.5
- LM-SERVICE: 1000.7.20.9.14.20200731160700
(Check SAP Note #2983204 for detailed information on affected releases)
Vulnerability Details
The main objective of the End-user Enterprise Monitoring (EEM) app is to upload scripts which will mimic user actions in order to be able to automatically perform different kinds of tests.
In order to develop and upload the aforementioned scripts, a proprietary language has to be used.
The lack of sanitization in a specific functionality provided by this proprietary language, allows a malicious user to perform path traversal attacks. Due to these scripts being executed by the EEM robots (by default, SMD Agents), the attacker could exfiltrate files containing sensitive information from the SMDAgents. Furthermore, attacks which affect the availability of some services from the SMDAgents, could be carried out by exploiting this same vulnerability.
Solution
SAP has released SAP Note #2983204 which provides patched versions of the affected components.
The patches can be downloaded from https://launchpad.support.sap.com/#/notes/2983204.
Onapsis strongly recommends SAP customers to download the related security fixes and apply them to the affected components in order to reduce business risks.
Report Timeline
- 10/05/2020 – Onapsis sends details to SAP
- 10/05/2020 – SAP provides tracking id.
- 10/12/2020 – SAP provides update: “Fix in progress”
- 11/09/2020 – SAP provides update: “In process”
- 11/30/2020 – SAP proposes to split the original submission into two different vulnerabilities.
- 12/02/2020 – Onapsis agrees to split the submission.
- 12/08/2020 – SAP releases note.
REFERENCES
- Onapsis Blog Post:
https://onapsis.com/blog/sap-security-notes-december-2020 - CVE Mitre:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26837 - Vendor Patch:
https://launchpad.support.sap.com/#/notes/2983204.
Advisory Information
- Public Release Date: 06/14/2021
- Security Advisory ID: ONAPSIS-2021-0010
- Vulnerability Submission ID: 846
- Researcher(s): Pablo Artuso, Gonzalo Roisman
Vulnerability Information
- Vendor: SAP
- Vulnerability Class: |LS|CWE-23|RS| Relative Path Traversal
- CVSS v3 score: 8.5 AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L
- Severity: High
- CVE: CVE-2020-26837
- Vendor patch Information: SAP Security Note 2983204
ABOUT OUR RESEARCH LABS
Onapsis Research Labs provides the industry analysis of key security issues that impact mission-critical systems and applications.
Delivering frequent and timely security and compliance advisories with associated risk levels, Onapsis Research Labs combine in-depth knowledge
and experience to deliver technical and business-context with sound security judgment to the broader information security community.
Find all reported vulnerabilities at https://github.com/Onapsis/vulnerability_advisories
This advisory is licensed under a Creative Commons 4.0 BY-ND International License
Advisory Information
- Public Release Date: 04/05/2022
- Security Advisory ID: ONAPSIS-2022-0001
- Vulnerability Submission ID: 900, 901, 902
- Researcher(s): Martin Doyhenard, Yvan Genuer
Vulnerability Information
- Vendor: SAP
- Vulnerability Class: CWE-444
- CVSS v3 score: 8.9 AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L
- Severity: High
- CVE: CVE-2021-38162
- Vendor patch Information: SAP Security NOTE 3080567
ABOUT OUR RESEARCH LABS
Onapsis Research Labs provides the industry analysis of key security issues that impact mission-critical systems and applications.
Delivering frequent and timely security and compliance advisories with associated risk levels, Onapsis Research Labs combine in-depth knowledge
and experience to deliver technical and business-context with sound security judgment to the broader information security community.
Find all reported vulnerabilities at https://github.com/Onapsis/vulnerability_advisories
This advisory is licensed under a Creative Commons 4.0 BY-ND International License
