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Vahagn Vardanian

Vahagn Vardanian

Co-founder and CTO of RedRays

CVE-2018-2371 Cross-Site Scripting (XSS) Vulnerability in SAML 2.0 Service Provider of AS Java, SAP security note 2560741

Description

The SAML 2.0 service provider of Application Server(AS) Java does not sufficiently encode user controlled inputs, which results in Cross-Site Scripting (XSS) vulnerability.

Some well-known impacts of XSS vulnerability are the following:

  • non-permanently defacing or modifying displayed content from a Web site;
  • stealing the user authentication information such as data related to his or her current session;
  • impersonating the user and accessing all information with the same rights as the target user.

CVSS Information

CVSS v3 Base Score: 6.1 / 10
CVSS v3 Base Vector:

AV : Attack Vector (Related exploit range)

Network (N)

AC : Attack Complexity (Required attack complexity)

Low (L)

PR : Privileges Required (Level of privileges needed to exploit)

None (N)

UI : User Interaction (Required user participation)

Required (R)

S : Scope (Change in scope due to impact caused to components beyond the vulnerable component)

Changed (C)

C : Impact to Confidentiality

Low (L)

I : Impact to Integrity

Low (L)

A : Impact to Availability

None (N)

SAP provides this CVSS v3 base score as an estimate of the risk posed by the issue reported in this note. This estimate does not take into account your own system configuration or operational environment. It is not intended to replace any risk assessments you are advised to conduct when deciding on the applicability or priority of this SAP security note. For more information, see the FAQ section at https://support.sap.com/securitynotes.

Available fix and Supported packages

  • SECURITY-EXT | 7.20 | 7.20
  • SECURITY-EXT | 7.30 | 7.30
  • SECURITY-EXT | 7.31 | 7.31
  • SECURITY-EXT | 7.40 | 7.40
  • SECURITY-EXT | 7.50 | 7.50
  • SECURITY EXTENSIONS 7.20 | SP009 | 000014
  • SECURITY EXTENSIONS 7.30 | SP015 | 000002
  • SECURITY EXTENSIONS 7.30 | SP016 | 000002
  • SECURITY EXTENSIONS 7.30 | SP017 | 000001
  • SECURITY EXTENSIONS 7.30 | SP018 | 000001
  • SECURITY EXTENSIONS 7.30 | SP019 | 000000
  • SECURITY EXTENSIONS 7.31 | SP018 | 000002
  • SECURITY EXTENSIONS 7.31 | SP019 | 000002
  • SECURITY EXTENSIONS 7.31 | SP020 | 000001
  • SECURITY EXTENSIONS 7.31 | SP021 | 000001
  • SECURITY EXTENSIONS 7.31 | SP022 | 000000
  • SECURITY EXTENSIONS 7.31 | SP023 | 000000
  • SECURITY EXTENSIONS 7.40 | SP013 | 000002
  • SECURITY EXTENSIONS 7.40 | SP014 | 000002
  • SECURITY EXTENSIONS 7.40 | SP015 | 000001
  • SECURITY EXTENSIONS 7.40 | SP016 | 000001
  • SECURITY EXTENSIONS 7.40 | SP017 | 000000
  • SECURITY EXTENSIONS 7.40 | SP018 | 000000
  • SECURITY EXTENSIONS 7.50 | SP005 | 000002
  • SECURITY EXTENSIONS 7.50 | SP006 | 000001

Affected component

    BC-JAS-SEC-SML
    JAVA SAML 1.1 and 2.0

CVSS

Score: 0

PoC

Detailed vulnerability information added to RedRays Security Platform. Contact [email protected] for details.

URL

https://launchpad.support.sap.com/#/notes/2560741

TAGS

#&65279-XSS
#stored-XSS
#reflected-XSS
#CSS&65279
#&160-CVE-2018-2371

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