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

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in MikroTik RouterOS up to 6.46. Affected is an unknown function of the file /nova/bin/bfd. The manipulation results in null pointer dereference. This vulnerability is known as CVE-2020-20220. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, was found in MikroTik RouterOS up to 6.46 (Router Operating System). Affected is an unknown function of the file /nova/bin/bfd. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability.

The weakness was published 05/19/2021 as 162533. The advisory is available at packetstormsecurity.com. This vulnerability is traded as CVE-2020-20220. Technical details are known, but there is no available exploit.

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: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
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: 🔍
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 6.47

Timelineinfo

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

Sourcesinfo

Advisory: 162533
Status: Confirmed

CVE: CVE-2020-20220 (🔍)
GCVE (CVE): GCVE-0-2020-20220
GCVE (VulDB): GCVE-100-175350

Entryinfo

Created: 05/19/2021 08:06
Updated: 05/22/2021 13:51
Changes: 05/19/2021 08:06 (40), 05/22/2021 13:51 (5)
Complete: 🔍
Cache ID: 216::103

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