NewStart CGSL CORE 5.05 / MAIN 5.05 : tomcat Vulnerability (NS-SA-2021-0135)

high Nessus Plugin ID 154560


The remote NewStart CGSL host is affected by a vulnerability.


The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has tomcat packages installed that are affected by a vulnerability:

- When using Apache Tomcat versions 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and 7.0.0 to 7.0.103 if a) an attacker is able to control the contents and name of a file on the server; and b) the server is configured to use the PersistenceManager with a FileStore; and c) the PersistenceManager is configured with sessionAttributeValueClassNameFilter=null (the default unless a SecurityManager is used) or a sufficiently lax filter to allow the attacker provided object to be deserialized; and d) the attacker knows the relative file path from the storage location used by FileStore to the file the attacker has control over; then, using a specifically crafted request, the attacker will be able to trigger remote code execution via deserialization of the file under their control. Note that all of conditions a) to d) must be true for the attack to succeed. (CVE-2020-9484)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Upgrade the vulnerable CGSL tomcat packages. Note that updated packages may not be available yet. Please contact ZTE for more information.

See Also

Plugin Details

Severity: High

ID: 154560

File Name: newstart_cgsl_NS-SA-2021-0135_tomcat.nasl

Version: 1.4

Type: local

Published: 10/27/2021

Updated: 2/21/2022

Risk Information


Risk Factor: High

Score: 8.4


Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.4

Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: E:POC/RL:OF/RC:C

CVSS Score Source: CVE-2020-9484


Risk Factor: High

Base Score: 7

Temporal Score: 6.3

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:zte:cgsl_core:tomcat, p-cpe:/a:zte:cgsl_core:tomcat-admin-webapps, p-cpe:/a:zte:cgsl_core:tomcat-docs-webapp, p-cpe:/a:zte:cgsl_core:tomcat-el-2.2-api, p-cpe:/a:zte:cgsl_core:tomcat-javadoc, p-cpe:/a:zte:cgsl_core:tomcat-jsp-2.2-api, p-cpe:/a:zte:cgsl_core:tomcat-jsvc, p-cpe:/a:zte:cgsl_core:tomcat-lib, p-cpe:/a:zte:cgsl_core:tomcat-servlet-3.0-api, p-cpe:/a:zte:cgsl_core:tomcat-webapps, p-cpe:/a:zte:cgsl_main:tomcat, p-cpe:/a:zte:cgsl_main:tomcat-admin-webapps, p-cpe:/a:zte:cgsl_main:tomcat-docs-webapp, p-cpe:/a:zte:cgsl_main:tomcat-el-2.2-api, p-cpe:/a:zte:cgsl_main:tomcat-javadoc, p-cpe:/a:zte:cgsl_main:tomcat-jsp-2.2-api, p-cpe:/a:zte:cgsl_main:tomcat-jsvc, p-cpe:/a:zte:cgsl_main:tomcat-lib, p-cpe:/a:zte:cgsl_main:tomcat-servlet-3.0-api, p-cpe:/a:zte:cgsl_main:tomcat-webapps, cpe:/o:zte:cgsl_core:5, cpe:/o:zte:cgsl_main:5

Required KB Items: Host/local_checks_enabled, Host/ZTE-CGSL/release, Host/ZTE-CGSL/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/24/2021

Vulnerability Publication Date: 5/11/2020

Reference Information

CVE: CVE-2020-9484

IAVA: 2020-A-0225-S, 2020-A-0324