Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2021-36767

Severity CVSS v4.0:
Pending analysis
Type:
CWE-916 Use of Password Hash With Insufficient Computational Effort
Publication date:
08/10/2021
Last modified:
25/09/2023

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
9.80
Severity 3.x
CRITICAL
Vector 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
7.50
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:digi:realport:*:*:*:*:*:linux:*:* 1.9-40 (including)
cpe:2.3:a:digi:realport:*:*:*:*:*:windows:*:* 4.10.490 (including)
cpe:2.3:o:digi:connectport_ts_8\/16_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:digi:connectport_ts_8\/16:-:*:*:*:*:*:*:*
cpe:2.3:o:digi:connectport_lts_8\/16\/32_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:digi:connectport_lts_8\/16\/32:-:*:*:*:*:*:*:*
cpe:2.3:o:digi:passport_integrated_console_server_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:digi:passport_integrated_console_server:-:*:*:*:*:*:*:*
cpe:2.3:o:digi:cm_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:digi:cm:-:*:*:*:*:*:*:*
cpe:2.3:o:digi:portserver_ts_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:digi:portserver_ts:-:*:*:*:*:*:*:*
cpe:2.3:o:digi:portserver_ts_mei_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:digi:portserver_ts_mei:-:*:*:*:*:*:*:*
cpe:2.3:o:digi:portserver_ts_mei_hardened_firmware:*:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools