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CVE-2020-6994

Published: Apr 3, 2020Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-12
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
1.6%
Top 27.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A buffer overflow vulnerability was found in some devices of Hirschmann Automation and Control HiOS and HiSecOS. The vulnerability is due to improper parsing of URL arguments. An attacker could exploit this vulnerability by specially crafting HTTP requests to overflow an internal buffer. The following devices using HiOS Version 07.0.02 and lower are affected: RSP, RSPE, RSPS, RSPL, MSP, EES, EES, EESX, GRS, OS, RED. The following devices using HiSecOS Version 03.2.00 and lower are affected: EAGLE20/30.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-12CWE-120

Affected Products

HiOS for the following devices RSP, RSPE, RSPS, RSPL, MSP, EES, EES, EESX, GRS, OS, REDHirschmann Automation and Control GmbH, a division of Belden Inc.
Embedded
ICS / OT / IoT / industrial-network
HiSecOS for device EAGLE20/30Hirschmann Automation and Control GmbH, a division of Belden Inc.
Embedded
ICS / OT / IoT / industrial-network
hirschmann hiosbeldenNetworking Infrastructure
hirschmann hisecosbeldenNetworking Infrastructure
Hirschmann HiOSBelden Inc.
Embedded
Networking Infrastructure / network-management
hirschmann automation and control gmbh, a division of belden inc.commercialICS / OT / IoT
beldencommercialUSNetworking Infrastructureaka belden hirschmann, tofino security appliance
belden inc.commercialUSNetworking Infrastructureaka belden
and 1 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://www.us-cert.gov/ics/advisories/icsa-20-091-01
us-cert.gov
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2022/icsa-22-270-01.json
raw.githubusercontent.com
https://www.cisa.gov/news-events/ics-advisories/icsa-22-270-01
cisa.gov
and 7 more references View all →

Timeline

Published
Apr 3, 2020
Last Updated
Nov 21, 2024

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