MikroTik RouterOS up to 6.46 /nova/bin/bfd null pointer dereference
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.1 | $0-$5k | 0.00 |
Summary
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.
Details
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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Product
Type
Vendor
Name
Version
- 6.0
- 6.1
- 6.2
- 6.3
- 6.4
- 6.5
- 6.6
- 6.7
- 6.8
- 6.9
- 6.10
- 6.11
- 6.12
- 6.13
- 6.14
- 6.15
- 6.16
- 6.17
- 6.18
- 6.19
- 6.20
- 6.21
- 6.22
- 6.23
- 6.24
- 6.25
- 6.26
- 6.27
- 6.28
- 6.29
- 6.30
- 6.31
- 6.32
- 6.33
- 6.34
- 6.35
- 6.36
- 6.37
- 6.38
- 6.39
- 6.40
- 6.41
- 6.42
- 6.43
- 6.44
- 6.45
- 6.46
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.3VulDB Meta Temp Score: 4.1
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Null pointer dereferenceCWE: 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: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: RouterOS 6.47
Timeline
08/13/2020 🔍05/19/2021 🔍
05/19/2021 🔍
05/22/2021 🔍
Sources
Advisory: 162533Status: Confirmed
CVE: CVE-2020-20220 (🔍)
GCVE (CVE): GCVE-0-2020-20220
GCVE (VulDB): GCVE-100-175350
Entry
Created: 05/19/2021 08:06Updated: 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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