WECON LEVI Studio HMI Editor up to 1.8.0 memory corruption

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.
8.2	$0-$5k	0.00

Summaryinfo

A vulnerability was found in WECON LEVI Studio HMI Editor up to 1.8.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality. Executing a manipulation can lead to memory corruption. This vulnerability is tracked as CVE-2017-13999. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in WECON LEVI Studio HMI Editor up to 1.8.0 (SCADA Software) and classified as critical. This vulnerability affects some unknown processing. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A Stack-based Buffer Overflow issue was discovered in WECON LEVI Studio HMI Editor v1.8.1 and prior. Multiple stack-based buffer overflow vulnerabilities have been identified in which the application does not verify string size before copying to memory; the attacker may then be able to crash the application or run arbitrary code.

The bug was discovered 10/12/2017. The weakness was disclosed 10/17/2017 by iDefense with iDEFENSE Labs (Website). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2017-13999 since 08/30/2017. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

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

Upgrading to version v1.8.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 101250†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• SCADA Software

Vendor

• WECON

Name

• LEVI Studio HMI Editor

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8.0

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: LEVI Studio HMI Editor v1.8.1

Timelineinfo

08/30/2017 🔍
10/12/2017 +43 days 🔍
10/12/2017 +0 days 🔍
10/17/2017 +5 days 🔍
10/17/2017 +0 days 🔍
10/18/2017 +1 days 🔍
01/17/2021 +1187 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Andrea (iDefense)
Organization: iDEFENSE Labs
Status: Not defined

CVE: CVE-2017-13999 (🔍)
GCVE (CVE): GCVE-0-2017-13999
GCVE (VulDB): GCVE-100-107932
SecurityFocus: 101250 - Wecon LEVI Studio HMI Editor CVE-2017-13999 Multiple Stack Based Buffer Overflow Vulnerabilities

Entryinfo

Created: 10/18/2017 09:03
Updated: 01/17/2021 09:22
Changes: 10/18/2017 09:03 (60), 11/25/2019 15:52 (5), 01/17/2021 09:22 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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