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URL Redirection Vulnerability in SAP NetWeaver Logon Application, SAP security note 2423540

Description

Updated on 29th March: This note has been updated. The fix has been down ported to the following SPs. Please refer note 2524134 for more details.

J2EE ENGINE APPLICATIONS 7.31 : SP017 & SP018

J2EE ENGINE APPLICATIONS 7.40 : SP012 & SP013

The Logon Application of AS Java allows an attacker to redirect users to a malicious site due to insufficient URL validation..

Some well-known impacts of the URL redirection vulnerability are the following:

  • phishing attacks to steal credentials of the victim;   
  • redirecting users to untrusted webpages that contain malware or similar malicious exploits.  

CVSS Information

CVSS v3 Base Score: 4.3 / 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)

Unchanged (U)

C : Impact to Confidentiality

Low (L)

I : Impact to Integrity

None (N)

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

  • J2EE-APPS | 7.11 | 7.11
  • J2EE-APPS | 7.20 | 7.20
  • J2EE-APPS | 7.30 | 7.30
  • J2EE-APPS | 7.31 | 7.31
  • J2EE-APPS | 7.40 | 7.40
  • J2EE-APPS | 7.50 | 7.50
  • J2EE ENGINE APPLICATIONS 7.11 | SP016 | 000004
  • J2EE ENGINE APPLICATIONS 7.11 | SP017 | 000000
  • J2EE ENGINE APPLICATIONS 7.20 | SP009 | 000024
  • J2EE ENGINE APPLICATIONS 7.30 | SP016 | 000007
  • J2EE ENGINE APPLICATIONS 7.30 | SP017 | 000002
  • J2EE ENGINE APPLICATIONS 7.30 | SP018 | 000000
  • J2EE ENGINE APPLICATIONS 7.31 | SP019 | 000005
  • J2EE ENGINE APPLICATIONS 7.31 | SP020 | 000002
  • J2EE ENGINE APPLICATIONS 7.31 | SP021 | 000000
  • J2EE ENGINE APPLICATIONS 7.40 | SP014 | 000006
  • J2EE ENGINE APPLICATIONS 7.40 | SP015 | 000002
  • J2EE ENGINE APPLICATIONS 7.40 | SP016 | 000000
  • J2EE ENGINE APPLICATIONS 7.50 | SP006 | 000003
  • J2EE ENGINE APPLICATIONS 7.50 | SP007 | 000003
  • J2EE ENGINE APPLICATIONS 7.50 | SP008 | 000001
  • J2EE ENGINE APPLICATIONS 7.50 | SP009 | 000000

Affected component

    BC-JAS-SEC
    Security, User Management

CVSS

Score: 0

Exploit

Exploit is not available.
For detailed information please contact the mail [email protected]

URL

https://launchpad.support.sap.com/#/notes/2423540

TAGS

#open-redirect
#cross-site-redirect
#cross-domain-redirect