PT-2021-19214 · Unknown · Openmptcprouter-Vps-Admin

Published 2021-05-06 · Updated 2021-05-13 · CVE-2021-31245

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions openmptcprouter-vps-admin versions 0.57.3 and earlier

Description The issue allows remote attackers to guess the password via a timing attack because the password comparison is done in a length-dependent manner. This means that the time it takes to compare the user-provided password with the original password can give away information about the length of the correct password, making it easier for attackers to guess it.

Recommendations For openmptcprouter-vps-admin versions 0.57.3 and earlier, consider updating to a newer version that fixes this issue, as the current version allows for a timing attack due to the length-dependent password comparison. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2021-31245

Affected Products

Openmptcprouter-Vps-Admin

References · 7

• 🔥 https://medium.com/d3crypt/timing-attack-on-openmptcprouter-vps-admin-authentication-cve-2021-31245-12dd92303e1 · Exploit
• https://github.com/Ysurac/openmptcprouter-vps-admin/commit/a01cbc8c3d3b8bb7720bf3ff234671b4c0e1859c#diff-b89ee68e63302a732d4bde35eb04a205b06f1611147e139642356f173195ab80 · Patch
• https://openmptcprouter.com · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-31245 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-31245 · Security Note
• https://github.com/Ysurac/openmptcprouter-vps-admin · Note
• https://t.me/cvenotify/14412 · Telegram Post