Detections
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EulerOS 2.0 SP3 : net-snmp (EulerOS-SA-2020-2056)

high Nessus Plugin ID 140823

Synopsis

The remote EulerOS host is missing multiple security updates.

Description

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

 - Net-SNMP through 5.7.3 has Improper Privilege Management because SNMP WRITE access to the EXTEND MIB provides the ability to run arbitrary commands as root.(CVE-2020-15862)

 - Net-SNMP through 5.7.3 allows Escalation of Privileges because of UNIX symbolic link (symlink) following.(CVE-2020-15861)

 - net-snmp before 5.8.1.pre1 has a double free in usm_free_usmStateReference in snmplib/snmpusm.c via an SNMPv3 GetBulk request. NOTE: this affects net-snmp packages shipped to end users by multiple Linux distributions, but might not affect an upstream release.(CVE-2019-20892)

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 net-snmp packages.

See Also

http://www.nessus.org/u?f2c552cd

Plugin Details

Severity: High

ID: 140823

File Name: EulerOS_SA-2020-2056.nasl

Version: 1.7

Type: local

Published: 9/28/2020

Updated: 2/19/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2020-15862

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

Vector: CVSS:3.0/AV:L/AC:L/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:net-snmp, p-cpe:/a:huawei:euleros:net-snmp-agent-libs, p-cpe:/a:huawei:euleros:net-snmp-devel, p-cpe:/a:huawei:euleros:net-snmp-libs, p-cpe:/a:huawei:euleros:net-snmp-utils, 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: 9/28/2020

Reference Information

CVE: CVE-2019-20892, CVE-2020-15861, CVE-2020-15862

IAVA: 2020-A-0384-S