VDB-109153 · CVE-2017-12719 · BID 101685

Advantech WebAccess up to 8.2 null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Advantech WebAccess up to 8.2. Affected by this vulnerability is an unknown functionality. This manipulation causes null pointer dereference. This vulnerability appears as CVE-2017-12719. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Advantech WebAccess up to 8.2 (SCADA Software). Affected by this vulnerability is some unknown functionality. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An Untrusted Pointer Dereference issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. A remote attacker is able to execute code to dereference a pointer within the program causing the application to become unavailable.

The bug was discovered 11/02/2017. The weakness was presented 11/06/2017 by Steven Seeley (Website). The advisory is shared at securityfocus.com. This vulnerability is known as CVE-2017-12719 since 08/09/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 4 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 11860 (Advantech WebAccess Multiple Security Vulnerabilities).

Upgrading to version 8.2_20170817 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 101685†). See VDB-105985, VDB-105986, VDB-105987 and VDB-105988 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
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

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: WebAccess 8.2_20170817

Timelineinfo

08/09/2017 🔍
11/02/2017 +85 days 🔍
11/02/2017 +0 days 🔍
11/06/2017 +4 days 🔍
11/06/2017 +0 days 🔍
11/07/2017 +1 days 🔍
12/04/2019 +757 days 🔍

Sourcesinfo

Vendor: advantech.com

Advisory: securityfocus.com⛔
Researcher: Steven Seeley
Status: Not defined

CVE: CVE-2017-12719 (🔍)
GCVE (CVE): GCVE-0-2017-12719
GCVE (VulDB): GCVE-100-109153
SecurityFocus: 101685 - Advantech WebAccess Multiple Remote Code Execution Vulnerabilities

See also: 🔍

Entryinfo

Created: 11/07/2017 08:02
Updated: 12/04/2019 16:20
Changes: 11/07/2017 08:02 (63), 12/04/2019 16:20 (4)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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