CVE-2019-3977 : Vulnerability Insights and Analysis
Learn about CVE-2019-3977 affecting MikroTik RouterOS versions 6.45.6 Stable and below, 6.44.5 Long-term and below. Understand the impact, technical details, and mitigation steps for this critical autoupgrade vulnerability.
RouterOS versions 6.45.6 Stable and below, 6.44.5 Long-term and below are affected by a vulnerability in the autoupgrade feature that allows remote attackers to deceive the router into installing outdated versions, potentially resetting all usernames and passwords.
Understanding CVE-2019-3977
This CVE involves insufficient verification of upgrade package sources in MikroTik RouterOS, leading to a critical security risk.
What is CVE-2019-3977?
The autoupgrade feature in affected RouterOS versions fails to adequately verify the source of upgrade packages, enabling remote attackers to manipulate the router into installing outdated versions, compromising system security.
The Impact of CVE-2019-3977
The vulnerability poses a severe risk as attackers can exploit it to reset all usernames and passwords on the affected system, potentially leading to unauthorized access and control.
Technical Details of CVE-2019-3977
This section delves into the specifics of the vulnerability and its implications.
Vulnerability Description
The autoupgrade feature in RouterOS versions 6.45.6 Stable, 6.44.5 Long-term, and earlier lacks proper validation of upgrade package sources, allowing malicious actors to trick the router into installing outdated software versions.
Affected Systems and Versions
- Product: MikroTik RouterOS
- Versions: RouterOS 6.45.6 Stable and below, RouterOS 6.44.5 Long-term and below
Exploitation Mechanism
Attackers can exploit this vulnerability by deceiving the router into