CVE-2020-13556

CVSS V2 High 7.5 CVSS V3 Critical 9.8

Description

An out-of-bounds write vulnerability exists in the Ethernet/IP server functionality of EIP Stack Group OpENer 2.3 and development commit 8c73bf3. A specially crafted series of network requests can lead to remote code execution. An attacker can send a sequence of requests to trigger this vulnerability.

Overview

CVE ID
CVE-2020-13556

Assigner
talos-cna@cisco.com

Vulnerability Status
Analyzed

Published Version
2020-12-11T04:15:11

Last Modified Date
2022-06-07T18:37:08

Weakness Enumerations

CWE	URL
CWE-787	http://cwe.mitre.org/data/definitions/787.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:opener_project:opener:2.3:::::::*	1	OR

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
7.5

Severity
HIGH

Exploitability Score
10

Impact Score
6.4

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
9.8

Base Severity
CRITICAL

Exploitability Score
3.9

Impact Score
5.9

References

Reference URL	Reference Tags
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1170	Exploit Technical Description Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2020-13556
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13556

History

Created	Old Value	New Value	Data Type	Notes
2022-04-20 17:02:12				Added to TrackCVE
2022-12-05 18:01:57	2020-12-11T04:15Z	2020-12-11T04:15:11	CVE Published Date	updated
2022-12-05 18:01:57		2022-06-07T18:37:08	CVE Modified Date	updated
2022-12-05 18:01:57		Analyzed	Vulnerability Status	updated