Detections
Analytics
Adobe Connect <= 11.2.3 Multiple Arbitrary Code Execution Vulnerabilities (APSB21-91)
medium Nessus Plugin ID 154144
Language:
Synopsis
The remote web server contains an application that is affected by multiple arbitrary code execution vulnerabilities.Description
The version of Adobe Connect installed on the remote host is prior to 11.3.0. It is, therefore, affected by multiple vulnerabilities as referenced in the apsb21-91 advisory.- Adobe Connect version 11.2.3 (and earlier) is affected by a reflected Cross-Site Scripting (XSS) vulnerability. If an attacker is able to convince a victim to visit a URL referencing a vulnerable page, malicious JavaScript content may be executed within the context of the victim's browser. (CVE-2021-40721)
- Adobe Connect version 11.2.3 (and earlier) is affected by a Deserialization of Untrusted Data vulnerability to achieve arbitrary method invocation when AMF messages are deserialized on an Adobe Connect server. An attacker can leverage this to execute remote code execution on the server.
(CVE-2021-40719)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade to Adobe Connect version 11.3.0 or later.See Also
https://helpx.adobe.com/security/products/connect/apsb21-91.html
Plugin Details
Severity: Medium
ID: 154144
File Name: adobe_connect_apsb21-91.nasl
Version: 1.9
Type: remote
Agent: windows, macosx, unix
Family: CGI abuses
Published: 10/14/2021
Updated: 11/21/2024
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: High
Base Score: 7.5
Temporal Score: 5.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2021-40719
CVSS v3
Risk Factor: Medium
Base Score: 6.1
Temporal Score: 5.3
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS Score Source: CVE-2021-40721
Vulnerability Information
CPE: cpe:/a:adobe:connect
Required KB Items: installed_sw/Adobe Connect
Exploit Ease: No known exploits are available
Patch Publication Date: 10/12/2021
Vulnerability Publication Date: 10/12/2021
Reference Information
CVE: CVE-2021-40719, CVE-2021-40721