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CVE-2021-36767

Published: Oct 8, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-916
9.8CRITICAL
NVD MITRE
EPSS Score
0.7%
Top 50.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

In Digi RealPort through 4.10.490, authentication relies on a challenge-response mechanism that gives access to the server password, making the protection ineffective. An attacker may send an unauthenticated request to the server. The server will reply with a weakly-hashed version of the server's access password. The attacker may then crack this hash offline in order to successfully login to the server.

No summary for this CVE yet.

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
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Weaknesses

CWE-916

Affected Products

digi
commercial·USaka transport wr21 firmware, transport wr44 firmware, transport wr11 xt firmware
realportOn-premDesktop App
ICS / OT / IoT / plc-scada-hmi
connectport ts 8\/16 firmwareEmbeddedFirmware
ICS / OT / IoT / plc-scada-hmi
connectport lts 8\/16\/32 firmwareEmbeddedFirmware
ICS / OT / IoT / plc-scada-hmi
passport integrated console server firmwareFirmware
ICS / OT / IoT / industrial-network
cm firmwareEmbeddedFirmware
ICS / OT / IoT / plc-scada-hmi
portserver ts firmwareEmbeddedFirmware
ICS / OT / IoT / plc-scada-hmi
portserver ts mei firmwareEmbeddedFirmware
ICS / OT / IoT / plc-scada-hmi
portserver ts mei hardened firmwareEmbeddedFirmware
ICS / OT / IoT / plc-scada-hmi
and 12 more affected products View all →

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Credential Access
View detailed technique mapping

References

https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-02.txt
raw.githubusercontent.com

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