EulerOS 2.0 SP8 : tomcat (EulerOS-SA-2020-1829)

high Nessus Plugin ID 139159

Synopsis

The remote EulerOS host is missing multiple security updates.

Description

According to the versions of the tomcat packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

- The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.(CVE-2020-13935)

- An h2c direct connection to Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36 and 8.5.1 to 8.5.56 did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an OutOfMemoryException could occur leading to a denial of service.(CVE-2020-13934)

- A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become unresponsive.(CVE-2020-11996)

- 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 Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected tomcat packages.

Plugin Details

Severity: High

ID: 139159

File Name: EulerOS_SA-2020-1829.nasl

Version: 1.6

Type: local

Family: Huawei Local Security Checks

Published: 7/30/2020

Updated: 12/5/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.4

Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2020-9484

CVSS v3

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: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:tomcat, p-cpe:/a:huawei:euleros:tomcat-admin-webapps, p-cpe:/a:huawei:euleros:tomcat-el-3.0-api, p-cpe:/a:huawei:euleros:tomcat-jsp-2.3-api, p-cpe:/a:huawei:euleros:tomcat-lib, p-cpe:/a:huawei:euleros:tomcat-servlet-4.0-api, cpe:/o:huawei:euleros:2.0

Required KB Items: Host/local_checks_enabled, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp

Excluded KB Items: Host/EulerOS/uvp_version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/30/2020

Reference Information

CVE: CVE-2020-11996, CVE-2020-13934, CVE-2020-13935, CVE-2020-9484

Detections

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