Advantech WebAccess up to 8.2 path traversal

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Advantech WebAccess up to 8.2 and classified as critical. Impacted is an unknown function. The manipulation results in path traversal. This vulnerability is reported as CVE-2017-16720. The attack can be launched remotely. Moreover, an exploit is present. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Advantech WebAccess up to 8.2 (SCADA Software). Affected is an unknown code. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A Path Traversal issue was discovered in WebAccess versions prior to 8.3. An attacker has access to files within the directory structure of the target device.

The bug was discovered 01/04/2018. The weakness was disclosed 01/05/2018 by Andrea Micalizzi with Zero Day Initiative (Website). The advisory is available at securityfocus.com. This vulnerability is traded as CVE-2017-16720 since 11/09/2017. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11907 (Advantech WebAccess Multiple Security Vulnerabilities).

Upgrading to version 8.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (44278) and SecurityFocus (BID 102424†). The entries VDB-111401, VDB-111403, VDB-111404 and VDB-111405 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.2

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: WebAccess 8.3

Timelineinfo

11/09/2017 🔍
01/04/2018 +56 days 🔍
01/04/2018 +0 days 🔍
01/05/2018 +1 days 🔍
01/05/2018 +0 days 🔍
01/06/2018 +1 days 🔍
12/19/2019 +712 days 🔍

Sourcesinfo

Vendor: advantech.com

Advisory: securityfocus.com⛔
Researcher: Andrea Micalizzi
Organization: Zero Day Initiative
Status: Not defined

CVE: CVE-2017-16720 (🔍)
GCVE (CVE): GCVE-0-2017-16720
GCVE (VulDB): GCVE-100-111402
SecurityFocus: 102424 - Advantech WebAccess ICSA-18-004-02 Multiple Security Vulnerabilities

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 01/06/2018 17:13
Updated: 12/19/2019 20:12
Changes: 01/06/2018 17:13 (63), 12/19/2019 20:12 (9)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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