PT-2018-1701 · Mikrotik · Routeros+1

Published 2018-08-23 · Updated 2020-08-24 · CVE-2018-1156

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Mikrotik RouterOS versions prior to 6.42.7 Mikrotik RouterOS versions prior to 6.40.9

Description The issue is caused by a stack buffer overflow in the license upgrade interface, specifically in the licupgr component, which could allow a remote authenticated attacker to execute arbitrary code on the system. This can be achieved through a specially crafted request.

Recommendations For versions prior to 6.42.7, update to version 6.42.7 or later. For versions prior to 6.40.9, update to version 6.40.9 or later. As a temporary workaround, consider restricting access to the licupgr component until a patch is available.

Exploit

Fix

Stack Overflow

Memory Corruption

Weakness Enumeration

CWE-121

CWE-787

Related Identifiers

BDU:2018-01261

CVE-2018-1156

Affected Products

Mikrotik Routeros

Routeros

References · 9

• 🔥 https://github.com/tenable/routeros/tree/master/poc/cve_2018_1156 · Exploit
• 🔥 https://tenable.com/security/research/tra-2018-21 · Exploit
• https://bdu.fstec.ru/vul/2018-01261 · Security Note
• https://osv.dev/vulnerability/CVE-2018-1156 · Vendor Advisory
• https://mikrotik.com/download/changelogs/bugfix-release-tree · Vendor Advisory
• https://mikrotik.com/download/changelogs · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-1156 · Security Note
• https://cvedetails.com/cve/CVE-2018-1156 · Note
• https://securitylab.ru/vulnerability/495279.php · Note