Business Application Software Integrated Solution
CVE-2017-16691
MEDIUM
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Lifecycle Timeline
1DescriptionCVE.org
SAP Note Assistant tool (SAP BASIS from 7.00 to 7.02, from 7.10 to 7.11, 7.30, 7.31,7.40, from 7.50 to 7.52) supports upload of digitally signed note file of type 'SAR'. The digital signature verification is done together with the extraction of note file contained in the SAR archive. It is possible to append a tampered file to the SAR archive using SAPCAR tool and during the extraction, digital signature verification fails but the tampered file is extracted.
AnalysisAI
SAP Note Assistant tool (SAP BASIS from 7.00 to 7.02, from 7.10 to 7.11, 7.30, 7.31,7.40, from 7.50 to 7.52) supports upload of digitally signed note file of type 'SAR'. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified under CWE-20. SAP Note Assistant tool (SAP BASIS from 7.00 to 7.02, from 7.10 to 7.11, 7.30, 7.31,7.40, from 7.50 to 7.52) supports upload of digitally signed note file of type 'SAR'. The digital signature verification is done together with the extraction of note file contained in the SAR archive. It is possible to append a tampered file to the SAR archive using SAPCAR tool and during the extraction, digital signature verification fails but the tampered file is extracted. Affected products include: Sap Business Application Software Integrated Solution.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
ABAP BASIS function modules INST_CREATE_R3_RFC_DEST, INST_CREATE_TCPIP_RFCDEST, and INST_CREATE_TCPIP_RFC_DEST in SAP BA
ABAP File Interface in, SAP BASIS, from 7.00 to 7.02, from 7.10 to 7.11, 7.30, 7.31, 7.40, from 7.50 to 7.52, allows an
SAP NetWeaver, SAP BASIS from 7.00 to 7.02, from 7.10 to 7.11, 7.30, 7.31, 7.40, from 7.50 to 7.52, contains code that a
Necessary authorization checks for an authenticated user, resulting in escalation of privileges, have been fixed in SAP
SAP NetWeaver Internet Transaction Server (ITS), SAP Basis from 7.00 to 7.02, 7.30, 7.31, 7.40, from 7.50 to 7.52, allow
Same weakness CWE-20 – Improper Input Validation
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External POC / Exploit Code
Leaving vuln.today