VDB-193995 · CVE-2020-22844 · GCVE-0-2020-22844

MikroTik RouterOS 6.47 SMB Request buffer overflow

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.
4.2	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in MikroTik RouterOS 6.47. Affected is an unknown function of the component SMB Request Handler. Performing a manipulation results in buffer overflow. This vulnerability is known as CVE-2020-22844. No exploit is available.

Detailsinfo

A vulnerability classified as critical has been found in MikroTik RouterOS 6.47 (Router Operating System). This affects an unknown code of the component SMB Request Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on availability.

The weakness was published 03/01/2022. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2020-22844 since 08/13/2020. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Router Operating System

Vendor

MikroTik

Name

RouterOS

Version

6.47

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/13/2020 🔍
03/01/2022 +565 days 🔍
03/01/2022 +0 days 🔍
03/04/2022 +3 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2020-22844 (🔍)
GCVE (CVE): GCVE-0-2020-22844
GCVE (VulDB): GCVE-100-193995

Entryinfo

Created: 03/01/2022 07:48
Updated: 03/04/2022 08:08
Changes: 03/01/2022 07:48 (38), 03/04/2022 08:08 (1)
Complete: 🔍
Cache ID: 216::103