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Vahagn Vardanian

Co-founder and CTO of RedRays

CVE-2019-0245 Cross-Site Scripting (XSS) vulnerability in SAP CRM WebClient UI, SAP security note 2607692

SAP Note 2607692

SAP security note 2607692, "[CVE-2019-0245] Cross-Site Scripting (XSS) vulnerability in SAP CRM WebClient UI", is a note. Below are the symptom, SAP recommended solution and the affected software components.

Description

Symptom

SAP CRM WebClient UI does not sufficiently encode user-controlled inputs, resulting in a Cross-Site Scripting (XSS) vulnerability.

Non-permanently deface or modify displayed content from a website.

Steal authentication information of the user, such as data relating to their current session.

Impersonate the user and access all information with the same rights as the target user.

Unauthorized execution of commands.

Solution

Input encoding has been added. Please implement the solution below, or install the equivalent Support Package.

Reason and prerequisites

CRM WebClient UI does not encode or validate untrusted input. The attacker needs to trick an already authenticated user to visit a prepared website to launch the attack.

CVSS

Score 5.4 Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

Affected components

  • SAPSCORE: 112
  • S4FND: 102
  • WEBCUIF: 731, 746, 747, 748, 800, 801

Full note on SAP: SAP Support Launchpad note 2607692

Detailed exploitation and proof-of-concept material for this note is maintained in the RedRays Security Platform. For access, contact [email protected].

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