Multiple vulnerabilities in MikroTik RouterOS



Published: 2020-05-12
Risk Low
Patch available YES
Number of vulnerabilities 2
CVE ID N/A
CWE ID CWE-400
CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
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MikroTik RouterOS
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor MikroTik

Security Advisory

1) Resource exhaustion

Risk: Low

CVSSv3: 6.7 [CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: N/A

CWE-ID: CWE-400 - Uncontrolled Resource Consumption ('Resource Exhaustion')

Exploit availability: No

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to the cerm process does not properly control consumption of internal resources. A remote authenticated user can send a specially crafted packet that triggers high CPU load and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

MikroTik RouterOS: 6.45, 6.45.1, 6.45.2, 6.45.3, 6.45.4, 6.45.5, 6.45.6, 6.46, 6.46.1, 6.46.2, 6.46.3

CPE External links

https://seclists.org/fulldisclosure/2020/May/30

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Memory corruption

Risk: Low

CVSSv3: 5.7 [CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: N/A

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the tracroute process. A remote authenticated user can send a specially crafted packet to create to the service, trigger memory corruption and crash the traceroute process.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

MikroTik RouterOS: 6.46, 6.46.1, 6.46.2, 6.46.3, 6.46.4

CPE External links

https://seclists.org/fulldisclosure/2020/May/30

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.