MikroTik RouterOS up to 6.44.5 /nova/bin/cerm resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in MikroTik RouterOS up to 6.44.5 and classified as problematic. This issue affects some unknown processing of the file /nova/bin/cerm. The manipulation leads to resource consumption. This vulnerability is referenced as CVE-2020-20221. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in MikroTik RouterOS up to 6.44.5 (Router Operating System). It has been rated as critical. This issue affects an unknown part of the file /nova/bin/cerm. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability.

The weakness was published 07/21/2021. It is possible to read the advisory at seclists.org. The identification of this vulnerability is CVE-2020-20221. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

Upgrading to version 6.44.6 eliminates this vulnerability.

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

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: RouterOS 6.44.6

Timelineinfo

08/13/2020 🔍
07/21/2021 +342 days 🔍
07/21/2021 +0 days 🔍
07/26/2021 +5 days 🔍

Sourcesinfo

Advisory: seclists.org
Status: Confirmed

CVE: CVE-2020-20221 (🔍)
GCVE (CVE): GCVE-0-2020-20221
GCVE (VulDB): GCVE-100-179315

Entryinfo

Created: 07/21/2021 22:41
Updated: 07/26/2021 08:43
Changes: 07/21/2021 22:41 (39), 07/26/2021 08:43 (2)
Complete: 🔍
Cache ID: 216::103

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