VDB-123103 · CVE-2018-14793 · BID 105105

DeltaV up to R5 Communication Port 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.
7.5	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in DeltaV 11.3.1/12.3.1/13.3.0/13.3.1/R5. This affects an unknown part of the component Communication Port. This manipulation causes memory corruption. This vulnerability appears as CVE-2018-14793. The attacker needs to be present on the local network. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in DeltaV 11.3.1/12.3.1/13.3.0/13.3.1/R5. Affected by this vulnerability is an unknown functionality of the component Communication Port. 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. The summary by CVE is:

DeltaV Versions 11.3.1, 12.3.1, 13.3.0, 13.3.1, and R5 is vulnerable to a buffer overflow exploit through an open communication port to allow arbitrary code execution.

The bug was discovered 08/16/2018. The weakness was presented 08/21/2018 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2018-14793 since 08/01/2018. The exploitation appears to be easy. The attack can only be done within the local network. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not 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.

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 105105†). See VDB-123104, VDB-123163 and VDB-123164 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

DeltaV

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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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: Partially

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/01/2018 🔍
08/16/2018 +15 days 🔍
08/16/2018 +0 days 🔍
08/21/2018 +4 days 🔍
08/21/2018 +0 days 🔍
08/22/2018 +1 days 🔍
03/17/2020 +573 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Status: Not defined

CVE: CVE-2018-14793 (🔍)
GCVE (CVE): GCVE-0-2018-14793
GCVE (VulDB): GCVE-100-123103
SecurityFocus: 105105 - Emerson DeltaV Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 08/22/2018 06:59
Updated: 03/17/2020 10:34
Changes: 08/22/2018 06:59 (58), 03/17/2020 10:34 (3)
Complete: 🔍
Cache ID: 216::103