Insecure Upgrade Mechanism in RouterOS by MikroTik
CVE-2019-3977

7.5HIGH

Key Information:

Vendor

Mikrotik

Status
Mikrotik Routeros
Vendor
CVE Published:
29 October 2019

What is CVE-2019-3977?

MikroTik's RouterOS contains a vulnerability in its autoupgrade feature where it fails to properly validate the source of upgrade packages. This flaw allows a remote attacker to exploit the system by enticing the router to download an older version, potentially leading to the reset of all system usernames and passwords, compromising network security.

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Affected Version(s)

MikroTik RouterOS RouterOS 6.45.6 Stable and below. RouterOS 6.44.5 Long-term and below.

References

https://www.tenable.com/security/research/tra-2019-46
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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