VDB-96883 · CVE-2016-8374 · BID 94093

Schneider Electric Magelis Web Server resource consumption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in Schneider Electric Magelis and classified as problematic. The affected element is an unknown function of the component Web Server. This manipulation causes resource consumption. This vulnerability appears as CVE-2016-8374. The attack may be initiated remotely. There is no available exploit. It is advisable to implement restrictive firewalling.

Detailsinfo

A vulnerability was found in Schneider Electric Magelis (SCADA Software) (the affected version unknown). It has been declared as problematic. Affected by this vulnerability is an unknown part of the component Web Server. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. The summary by CVE is:

An issue was discovered in Schneider Electric Magelis HMI Magelis GTO Advanced Optimum Panels, all versions, Magelis GTU Universal Panel, all versions, Magelis STO5xx and STU Small panels, all versions, Magelis XBT GH Advanced Hand-held Panels, all versions, Magelis XBT GK Advanced Touchscreen Panels with Keyboard, all versions, Magelis XBT GT Advanced Touchscreen Panels, all versions, and Magelis XBT GTW Advanced Open Touchscreen Panels (Windows XPe). An attacker may be able to disrupt a targeted web server, resulting in a denial of service because of UNCONTROLLED RESOURCE CONSUMPTION.

The bug was discovered 11/03/2016. The weakness was presented 02/13/2017 with Check Point (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2016-8374 since 09/28/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 102 days. During that time the estimated underground price was around $0-$5k.

Proper firewalling of is able to address this issue.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 94093†). See VDB-96878 for similar entry. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/28/2016 🔍
11/03/2016 +36 days 🔍
11/03/2016 +0 days 🔍
02/13/2017 +102 days 🔍
02/13/2017 +0 days 🔍
02/14/2017 +1 days 🔍
09/02/2020 +1296 days 🔍

Sourcesinfo

Vendor: schneider-electric.com

Advisory: securityfocus.com⛔
Organization: Check Point
Status: Not defined

CVE: CVE-2016-8374 (🔍)
GCVE (CVE): GCVE-0-2016-8374
GCVE (VulDB): GCVE-100-96883
SecurityFocus: 94093 - Schneider Electric Magelis HMI Multiple Denial of Service Vulnerabilities
OSVDB: - CVE-2016-8374 - Schneider Electric - Multiple Products - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 02/14/2017 09:10
Updated: 09/02/2020 08:33
Changes: 02/14/2017 09:10 (59), 09/02/2020 08:33 (6)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!