Remote buffer overflow in Mikrotik RouterOS sshd daemon
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | N/A |
| CWE-ID | CWE-119 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
MikroTik RouterOS Hardware solutions / Routers & switches, VoIP, GSM, etc |
| Vendor | MikroTik |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Heap corruption
EUVDB-ID: #VU333
Risk: High
CVSSv3.1: 9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: N/A
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when handling user-supplied input in sshd service. A remote unauthenticated attacker can send specially crafted packets to vulnerable sshd service, trigger heap corruption and cause denial of service or execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable device.
MitigationUpdate to the latest firmware version.
Vulnerable software versionsMikroTik RouterOS: 5.7 - 6.2
External linksQ & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker 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. However, proof of concept for this vulnerability is available.
