MikroTik RouterBOARD 6.39.2/6.40.5 TCP Service 53 input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in MikroTik RouterBOARD 6.39.2/6.40.5. This issue affects some unknown processing of the component TCP Service 53. The manipulation results in input validation. This vulnerability is cataloged as CVE-2017-17537. The attack may be launched remotely. Furthermore, there is an exploit available. Applying restrictive firewalling is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in MikroTik RouterBOARD 6.39.2/6.40.5 (Router Operating System). Affected is an unknown functionality of the component TCP Service 53. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. CVE summarizes:

MikroTik RouterBOARD v6.39.2 and v6.40.5 allows an unauthenticated remote attacker to cause a denial of service by connecting to TCP port 53 and sending data that begins with many '\0' characters, possibly related to DNS.

The bug was discovered 12/12/2017. The weakness was shared 12/13/2017 as EDB-ID 43200 as not defined exploit (Exploit-DB). The advisory is shared for download at exploit-db.com. This vulnerability is traded as CVE-2017-17537 since 12/11/2017. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.

After immediately, there has been an exploit disclosed. The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

It is possible to mitigate the weakness by firewalling tcp/53 (dns).

The vulnerability is also documented in the vulnerability database at Exploit-DB (43200). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.3
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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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OpenVAS ID: 860320
OpenVAS Name: MikroTik Router Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Firewalling: 🔍

Timelineinfo

12/11/2017 🔍
12/12/2017 +1 days 🔍
12/13/2017 +1 days 🔍
12/13/2017 +0 days 🔍
12/13/2017 +0 days 🔍
12/13/2017 +0 days 🔍
12/14/2017 +1 days 🔍
12/15/2019 +731 days 🔍

Sourcesinfo

Advisory: EDB-ID 43200
Status: Not defined

CVE: CVE-2017-17537 (🔍)
GCVE (CVE): GCVE-0-2017-17537
GCVE (VulDB): GCVE-100-110664
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 12/14/2017 07:53
Updated: 12/15/2019 08:34
Changes: 12/14/2017 07:53 (71), 12/15/2019 08:34 (1)
Complete: 🔍
Cache ID: 216::103

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

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