VDB-101500 · CVE-2017-7907 · BID 98254

Schneider Electric Wonderware Historian Client up to 2014 R2 SP1 XML Parser xml external entity reference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Schneider Electric Wonderware Historian Client up to 2014 R2 SP1. This vulnerability affects unknown code of the component XML Parser. Executing a manipulation can lead to xml external entity reference. This vulnerability is registered as CVE-2017-7907. The attack needs to be launched locally. No exploit is available.

Detailsinfo

A vulnerability was found in Schneider Electric Wonderware Historian Client up to 2014 R2 SP1 (SCADA Software). It has been declared as problematic. This vulnerability affects an unknown function of the component XML Parser. The manipulation with an unknown input leads to a xml external entity reference vulnerability. The CWE definition for the vulnerability is CWE-611. The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. As an impact it is known to affect confidentiality, and availability. CVE summarizes:

An Improper XML Parser Configuration issue was discovered in Schneider Electric Wonderware Historian Client 2014 R2 SP1 and prior. An improperly restricted XML parser (with improper restriction of XML external entity reference, or XXE) may allow an attacker to enter malicious input through the application which could cause a denial of service or disclose file contents from a server or connected network.

The bug was discovered 05/02/2017. The weakness was published 05/19/2017 (Website). The advisory is shared for download at software.schneider-electric.com. This vulnerability was named CVE-2017-7907 since 04/18/2017. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 16 days. During that time the estimated underground price was around $0-$5k.

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 98254†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.2

VulDB Base Score: 3.9
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.6
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: Xml external entity reference
CWE: CWE-611 / CWE-610
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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

04/18/2017 🔍
05/02/2017 +14 days 🔍
05/02/2017 +0 days 🔍
05/18/2017 +16 days 🔍
05/19/2017 +1 days 🔍
05/19/2017 +0 days 🔍
12/25/2020 +1316 days 🔍

Sourcesinfo

Vendor: schneider-electric.com

Advisory: software.schneider-electric.com
Researcher: Andrey Zhukov from USSC
Status: Not defined

CVE: CVE-2017-7907 (🔍)
GCVE (CVE): GCVE-0-2017-7907
GCVE (VulDB): GCVE-100-101500
SecurityFocus: 98254 - Wonderware Historian Client CVE-2017-7907 Local XML External Entity Injection Vulnerability
OSVDB: - CVE-2017-7907 - Schneider-Electric - Wonderware Historian Client - Low
SecurityTracker: 1038542

Entryinfo

Created: 05/19/2017 14:07
Updated: 12/25/2020 08:39
Changes: 05/19/2017 14:07 (59), 09/30/2020 12:46 (4), 12/25/2020 08:36 (3), 12/25/2020 08:39 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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