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CVE-2017-16680 Potential audit log injection vulnerability in SAP HANA XS Advanced, SAP security note 2522510

Description

Two potential audit log injections in SAP HANA Extended Application Services, advanced model:

1) Certain HTTP/REST endpoints of controller service are missing user input validation which could allow unprivileged attackers to forge audit log lines. Hence the interpretation of audit log files could be hindered or misdirected.

2) UAA writes audit logs into syslog and additionally writes the same audit entries into a log file. Entries in the log file miss escaping. Hence the interpretation of audit log files could be hindered or misdirected, while the entries in syslog are correct.

CVSS Information

CVSS v3 Base Score: 5.3 / 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)

None (N)

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

Unchanged (U)

C : Impact to Confidentiality

None (N)

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

  • SAP_EXTENDED_APP_SERVICES | 1 | 1
  • SAP EXTENDED APP SERVICES 1 | SP000 | 001063

Affected component

    BC-XS-RT
    OP Runtime / XS Controller

CVSS

Score: 0

Exploit

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

URL

https://launchpad.support.sap.com/#/notes/2522510

TAGS

#Log-Injection
#Audit-Log
#SAP-HANA-Extended-Application-Services
#advanced-model
#XS-Advanced
#Controller
#UAA
#&160-CVE-2017-16680