MikroTik RouterOS 6.47 /nova/bin/diskd memory corruption

HistoryDiffrelatejsonxmlCTI

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.
4.3	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in MikroTik RouterOS 6.47. Affected by this issue is some unknown functionality of the file /nova/bin/diskd. Such manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2020-20227. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in MikroTik RouterOS 6.47 (Router Operating System) and classified as critical. Affected by this issue is some unknown functionality of the file /nova/bin/diskd. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is availability.

The weakness was disclosed 05/19/2021 as 162533. The advisory is shared for download at packetstormsecurity.com. This vulnerability is handled as CVE-2020-20227. There are known technical details, but no exploit is available.

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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: 4.3

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

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/13/2020 🔍
05/19/2021 +279 days 🔍
05/19/2021 +0 days 🔍
05/22/2021 +3 days 🔍

Sourcesinfo

Advisory: 162533
Status: Not defined

CVE: CVE-2020-20227 (🔍)
GCVE (CVE): GCVE-0-2020-20227
GCVE (VulDB): GCVE-100-175352

Entryinfo

Created: 05/19/2021 08:14
Updated: 05/22/2021 14:02
Changes: 05/19/2021 08:14 (38), 05/22/2021 14:02 (2)
Complete: 🔍
Cache ID: 216::103