Summaryinfo

A vulnerability was found in LCDS LAquis SCADA up to 4.3.1.70 and classified as critical. The affected element is an unknown function of the component ELS File Handler. Executing a manipulation can lead to out-of-bounds write. This vulnerability is handled as CVE-2019-6536. It is possible to launch the attack on the local host. There is not any exploit available. It is suggested to upgrade the affected component. Once again VulDB remains the best source for vulnerability data.

Detailsinfo

A vulnerability has been found in LCDS LAquis SCADA up to 4.3.1.70 (SCADA Software) and classified as critical. This vulnerability affects an unknown code of the component ELS File Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Opening a specially crafted LCDS LAquis SCADA before 4.3.1.71 ELS file may result in a write past the end of an allocated buffer, which may allow an attacker to execute remote code in the context of the current process.

The bug was discovered 03/14/2019. The weakness was released 03/27/2019. This vulnerability was named CVE-2019-6536 since 01/22/2019. The attack can be initiated remotely. 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 13 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 4.3.1.71 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• SCADA Software

Vendor

• LCDS

Name

• LAquis SCADA

Version

• 4.3.1.0
• 4.3.1.1
• 4.3.1.2
• 4.3.1.3
• 4.3.1.4
• 4.3.1.5
• 4.3.1.6
• 4.3.1.7
• 4.3.1.8
• 4.3.1.9
• 4.3.1.10
• 4.3.1.11
• 4.3.1.12
• 4.3.1.13
• 4.3.1.14
• 4.3.1.15
• 4.3.1.16
• 4.3.1.17
• 4.3.1.18
• 4.3.1.19
• 4.3.1.20
• 4.3.1.21
• 4.3.1.22
• 4.3.1.23
• 4.3.1.24
• 4.3.1.25
• 4.3.1.26
• 4.3.1.27
• 4.3.1.28
• 4.3.1.29
• 4.3.1.30
• 4.3.1.31
• 4.3.1.32
• 4.3.1.33
• 4.3.1.34
• 4.3.1.35
• 4.3.1.36
• 4.3.1.37
• 4.3.1.38
• 4.3.1.39
• 4.3.1.40
• 4.3.1.41
• 4.3.1.42
• 4.3.1.43
• 4.3.1.44
• 4.3.1.45
• 4.3.1.46
• 4.3.1.47
• 4.3.1.48
• 4.3.1.49
• 4.3.1.50
• 4.3.1.51
• 4.3.1.52
• 4.3.1.53
• 4.3.1.54
• 4.3.1.55
• 4.3.1.56
• 4.3.1.57
• 4.3.1.58
• 4.3.1.59
• 4.3.1.60
• 4.3.1.61
• 4.3.1.62
• 4.3.1.63
• 4.3.1.64
• 4.3.1.65
• 4.3.1.66
• 4.3.1.67
• 4.3.1.68
• 4.3.1.69
• 4.3.1.70

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