Incorrect permission assignment for critical resource in net-snmp (Debian package) - CVE-2020-15862

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Main Vulnerability Database Vulnerabilities #VU45745

Incorrect permission assignment for critical resource in net-snmp (Debian package) - CVE-2020-15862

Published: August 17, 2020 / Updated: November 24, 2020


Vulnerability identifier: #VU45745
CSH Severity: Medium
CVSS v4: 7.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-15862
CWE-ID: CWE-732
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to insecure permissions set by the Net-snmp installed on Debian-based systems. A remote user can overwrite files in net-snmp directory via EXTEND MIB and execute arbitrary code on the system with root privileges.


Affected software

net-snmp (Debian package)
net-snmp (Red Hat package)
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
SUSE Linux Enterprise Module for Packagehub Subpackages
libsnmp15 (Ubuntu package)
libsnmp-base (Ubuntu package)
libsnmp-perl (Ubuntu package)
snmpd (Ubuntu package)
libsnmp30 (Ubuntu package)
snmp-mibs
libsnmp30-32bit
libsnmp30
libsnmp30-debuginfo-32bit
libsnmp30-debuginfo
net-snmp
net-snmp-debuginfo
net-snmp-debugsource
perl-SNMP
perl-SNMP-debuginfo
net-snmp-devel
libsnmp30-32bit-debuginfo
libsnmp35 (Ubuntu package)
Amazon Linux AMI
Gentoo Linux
SUSE CaaS Platform
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Manager Server
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
SUSE Enterprise Storage
Red Hat Enterprise Linux for IBM System z (Structure A)
Red Hat Enterprise Linux for Power 9
CentOS
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
HPE Helion Openstack
SUSE OpenStack Cloud
Red Hat Enterprise Linux for ARM 64
SUSE OpenStack Cloud Crowbar
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Software Development Kit
Ubuntu
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Realtime Extension
SUSE Linux Enterprise Module for Basesystem
Oracle Solaris
EMC ECS
Enterprise SONiC
Data Computing Appliance (DCA)
Dell EMC Unity VSA Operating Environment (OE)
Dell EMC Unity XT Operating Environment (OE)
Dell EMC Unity Operating Environment (OE)
Juniper Junos Space

How to mitigate CVE-2020-15862

Install updates from vendor's website.

net-snmp (Debian package) - addressed in versions 5.7.3+dfsg-5+deb10u1, 5.7.3+dfsg-1.7+deb9u3, 5.8+dfsg-5
net-snmp (Red Hat package) - addressed in versions 5.5-60.el6_10.2, 5.7.2-28.el7_4.4, 5.7.2-38.el7_6.3, 5.7.2-43.el7_7.7, 5.7.2-49.el7_9.1, 5.8-7.el8_0.4, 5.8-12.el8_1.3, 5.8-14.el8_2.3, 5.8-18.el8_3.1
EMC ECS - update to 3.7.0.2
Enterprise SONiC - update to 4.1.4
Data Computing Appliance (DCA) - update to 4.3.0.0
Dell EMC Unity VSA Operating Environment (OE) - update to 5.2.0.0.5.173
Dell EMC Unity XT Operating Environment (OE) - update to 5.2.0.0.5.173
Dell EMC Unity Operating Environment (OE) - update to 5.2.0.0.5.173
libsnmp15 (Ubuntu package) - update to 5.4.3~dfsg-2.4ubuntu1.5
libsnmp-base (Ubuntu package) - addressed in versions 5.4.3~dfsg-2.4ubuntu1.5, 5.7.2~dfsg-8.1ubuntu3.3+esm1, 5.7.2~dfsg-8.1ubuntu3.3+esm2, 5.7.3+dfsg-1.8ubuntu3.5, 5.7.3+dfsg-1.8ubuntu3.6, 5.7.3+dfsg-1ubuntu4.5, 5.7.3+dfsg-1ubuntu4.6, 5.8+dfsg-2ubuntu2.3
libsnmp-perl (Ubuntu package) - addressed in versions 5.4.3~dfsg-2.4ubuntu1.5, 5.7.2~dfsg-8.1ubuntu3.3+esm1, 5.7.2~dfsg-8.1ubuntu3.3+esm2, 5.7.3+dfsg-1.8ubuntu3.5, 5.7.3+dfsg-1.8ubuntu3.6, 5.7.3+dfsg-1ubuntu4.5, 5.7.3+dfsg-1ubuntu4.6, 5.8+dfsg-2ubuntu2.3
snmpd (Ubuntu package) - addressed in versions 5.4.3~dfsg-2.4ubuntu1.5, 5.7.2~dfsg-8.1ubuntu3.3+esm1, 5.7.2~dfsg-8.1ubuntu3.3+esm2, 5.7.3+dfsg-1.8ubuntu3.5, 5.7.3+dfsg-1.8ubuntu3.6, 5.7.3+dfsg-1ubuntu4.5, 5.7.3+dfsg-1ubuntu4.6, 5.8+dfsg-2ubuntu2.3
libsnmp30 (Ubuntu package) - addressed in versions 5.7.2~dfsg-8.1ubuntu3.3+esm1, 5.7.2~dfsg-8.1ubuntu3.3+esm2, 5.7.3+dfsg-1.8ubuntu3.5, 5.7.3+dfsg-1.8ubuntu3.6, 5.7.3+dfsg-1ubuntu4.5, 5.7.3+dfsg-1ubuntu4.6
snmp-mibs - addressed in versions 5.7.3-6.9.1, 5.7.3-7.13.1, 5.7.3-10.9.1
libsnmp30-32bit - addressed in versions 5.7.3-6.9.1, 5.7.3-10.9.1
libsnmp30 - addressed in versions 5.7.3-6.9.1, 5.7.3-7.13.1, 5.7.3-10.9.1
libsnmp30-debuginfo-32bit - update to 5.7.3-6.9.1
libsnmp30-debuginfo - addressed in versions 5.7.3-6.9.1, 5.7.3-7.13.1, 5.7.3-10.9.1
net-snmp - addressed in versions 5.7.3-6.9.1, 5.7.3-7.13.1, 5.7.3-10.9.1
net-snmp-debuginfo - addressed in versions 5.7.3-6.9.1, 5.7.3-7.13.1, 5.7.3-10.9.1
net-snmp-debugsource - addressed in versions 5.7.3-6.9.1, 5.7.3-7.13.1, 5.7.3-10.9.1
perl-SNMP - addressed in versions 5.7.3-6.9.1, 5.7.3-7.13.1, 5.7.3-10.9.1
perl-SNMP-debuginfo - addressed in versions 5.7.3-6.9.1, 5.7.3-7.13.1, 5.7.3-10.9.1
net-snmp-devel - addressed in versions 5.7.3-6.9.1, 5.7.3-7.13.1, 5.7.3-10.9.1
libsnmp30-32bit-debuginfo - update to 5.7.3-10.9.1
libsnmp35 (Ubuntu package) - update to 5.8+dfsg-2ubuntu2.3
Oracle Solaris - update to 11.4 SRU 77
Juniper Junos Space - update to 21.2R1

External References

Related Security Bulletins