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CVE-2018-2451 Unsecure xs CLI session timeout handling in SAP HANA Extended Application Services, advanced, SAP security note 2590705

Description

xs CLI user sessions with the SAP HANA Extended Application Services (XS) advanced server may have an unintentional long period of validity. Thus a platform user could access Controller resources via active CLI session even after corresponding authorizations have been revoked meanwhile by an user administrator. Similarly, an attacker who managed to gain access to the platform user’s session might misuse the session token even after the session has been closed.

This vulnerability could lead to loss of integrity, confidentiality and availability within the scope of the opened session.

CVSS Information

CVSS v3 Base Score: 6.6 / 10
CVSS v3 Base Vector:

AV : Attack Vector (Related exploit range)

Network (N)

AC : Attack Complexity (Required attack complexity)

High (H)

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

High (H)

UI : User Interaction (Required user participation)

None (N)

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

Unchanged (U)

C : Impact to Confidentiality

High (H)

I : Impact to Integrity

High (H)

A : Impact to Availability

High (H)

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

  • SAP_EXTENDED_APP_SERVICES | 1 | 1
  • SAP EXTENDED APP SERVICES 1 | SP000 | 000087

Affected component

    BC-XS-SEC
    UAA and Security for HANA XSA engine

CVSS

Score: 0

Exploit

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

URL

https://launchpad.support.sap.com/#/notes/2590705

TAGS

#xs-CLI-session
#xs-CLI-logout
#OAuth2-token-validity
#JWT-token-validity
#&160-CVE-2018-2451