MikroTik RouterOS up to 6.46 /nova/bin/dot1x null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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3.9$0-$5k0.00

Summaryinfo

A vulnerability was found in MikroTik RouterOS up to 6.46 and classified as problematic. This impacts an unknown function of the file /nova/bin/dot1x. Such manipulation leads to null pointer dereference. This vulnerability is uniquely identified as CVE-2020-20266. The attack can be launched remotely. Moreover, an exploit is present. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in MikroTik RouterOS up to 6.46 (Router Operating System). It has been rated as problematic. Affected by this issue is an unknown code of the file /nova/bin/dot1x. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability.

The weakness was disclosed 05/20/2021. The advisory is available at seclists.org. This vulnerability is handled as CVE-2020-20266. Technical details as well as a public exploit are known.

The exploit is available at github.com. It is declared as proof-of-concept.

Upgrading to version 6.47 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
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: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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 6.47

Timelineinfo

08/13/2020 🔍
05/20/2021 +280 days 🔍
05/20/2021 +0 days 🔍
05/22/2021 +2 days 🔍

Sourcesinfo

Advisory: seclists.org
Status: Confirmed

CVE: CVE-2020-20266 (🔍)
GCVE (CVE): GCVE-0-2020-20266
GCVE (VulDB): GCVE-100-175382
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/20/2021 08:08
Updated: 05/22/2021 16:04
Changes: 05/20/2021 08:08 (42), 05/22/2021 16:04 (2)
Complete: 🔍
Cache ID: 216::103

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