Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2020-9449

Severity CVSS v4.0:
Pending analysis
Type:
CWE-330 Use of Insufficiently Random Value
Publication date:
28/02/2020
Last modified:
04/03/2020

Description

An insecure random number generation vulnerability in BlaB! AX, BlaB! AX Pro, BlaB! WS (client), and BlaB! WS Pro (client) version 19.11 allows an attacker (with a guest or user session cookie) to escalate privileges by retrieving the cookie salt value and creating a valid session cookie for an arbitrary user or admin.

Impact

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

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
8.80
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:S/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): Single
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
6.50
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:justblab:blab\!_ax:19.11:*:*:*:*:*:*:*
cpe:2.3:a:justblab:blab\!_ax_pro:19.11:*:*:*:*:*:*:*
cpe:2.3:a:justblab:blab\!_ws:19.11:*:*:*:*:*:*:*
cpe:2.3:a:justblab:blab\!_ws_pro:19.11:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools