This security advisory describes one medium risk vulnerability.

1) Incorrect permission assignment for critical resource

Risk: Medium

CVSSv3:
6.5 [CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID:
CVE-2020-15862

CWE-ID:
CWE-732 – Incorrect Permission Assignment for Critical Resource

Exploit availability:
No

Description


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.

Mitigation

Install updates from vendor’s website.

Vulnerable software versions

net-snmp (Red Hat package):

5.5-27.el6, 5.5-27.el6_0, 5.5-31.el6, 5.5-37.el6, 5.5-37.el6_2, 5.5-41.el6, 5.5-41.el6_3, 5.5-44.el6, 5.5-44.el6_4, 5.5-49.el6, 5.5-49.el6_5, 5.5-50.el6_6, 5.5-54.el6, 5.5-54.el6_7, 5.5-57.el6, 5.5-57.el6_8, 5.5-60.el6, 5.5-60.el6_10

Red Hat Enterprise Linux for Power, big endian:

6

Red Hat Enterprise Linux for Scientific Computing:

6

Red Hat Enterprise Linux for IBM z Systems:

6

Red Hat Enterprise Linux Desktop:

6

Red Hat Enterprise Linux Workstation:

6

Red Hat Enterprise Linux Server:

6.0

CPE

External links

https://access.redhat.com/errata/RHSA-2020:5129

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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