VDB-162366 · CVE-2019-16160 · GCVE-0-2019-16160

MikroTik RouterOS up to 6.45.4 SMB Server integer underflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.1	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in MikroTik RouterOS up to 6.45.4. The affected element is an unknown function of the component SMB Server. The manipulation results in integer underflow. This vulnerability is identified as CVE-2019-16160. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in MikroTik RouterOS up to 6.45.4 (Router Operating System). It has been classified as problematic. Affected is an unknown functionality of the component SMB Server. The manipulation with an unknown input leads to a integer underflow vulnerability. CWE is classifying the issue as CWE-191. The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. This is going to have an impact on availability.

The weakness was released 10/08/2020. The advisory is available at forum.mikrotik.com. This vulnerability is traded as CVE-2019-16160. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

Upgrading to version 6.45.5 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at gist.github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

Router Operating System

Vendor

MikroTik

Name

RouterOS

Version

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Integer underflow
CWE: CWE-191 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: RouterOS 6.45.5
Patch: gist.github.com

Timelineinfo

09/09/2019 🔍
10/08/2020 +395 days 🔍
10/08/2020 +0 days 🔍
11/17/2020 +40 days 🔍

Sourcesinfo

Advisory: forum.mikrotik.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-16160 (🔍)
GCVE (CVE): GCVE-0-2019-16160
GCVE (VulDB): GCVE-100-162366

Entryinfo

Created: 10/08/2020 03:54
Updated: 11/17/2020 08:43
Changes: 10/08/2020 03:54 (17), 10/08/2020 03:55 (25), 11/16/2020 10:11 (4), 11/17/2020 08:35 (3), 11/17/2020 08:43 (14)
Complete: 🔍
Cache ID: 216::103