VDB-110517 · CVE-2017-16691 · BID 101822

SAP Basis up to 7.52 Note Assistant tool Signature input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in SAP Basis up to 7.52. Affected by this vulnerability is an unknown functionality of the component Note Assistant tool. Performing a manipulation results in input validation (Signature). This vulnerability is reported as CVE-2017-16691. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in SAP Basis up to 7.52. It has been classified as critical. This affects an unknown functionality of the component Note Assistant tool. The manipulation with an unknown input leads to a input validation vulnerability (Signature). CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The bug was discovered 12/12/2017. The weakness was disclosed 12/12/2017 (Website). The advisory is shared at blogs.sap.com. This vulnerability is uniquely identified as CVE-2017-16691 since 11/09/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 12/14/2019).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 101822†). The entries VDB-110506, VDB-110507, VDB-110508 and VDB-110509 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Signature
Class: Input validation / Signature
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/09/2017 🔍
11/14/2017 +5 days 🔍
12/12/2017 +28 days 🔍
12/12/2017 +0 days 🔍
12/12/2017 +0 days 🔍
12/13/2017 +1 days 🔍
12/14/2019 +731 days 🔍

Sourcesinfo

Vendor: sap.com

Advisory: blogs.sap.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-16691 (🔍)
GCVE (CVE): GCVE-0-2017-16691
GCVE (VulDB): GCVE-100-110517
SecurityFocus: 101822 - SAP NOTE Unspecified Security Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20150716
See also: 🔍

Entryinfo

Created: 12/13/2017 07:41
Updated: 12/14/2019 07:01
Changes: 12/13/2017 07:41 (60), 12/14/2019 07:01 (4)
Complete: 🔍
Cache ID: 216:863:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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