Vulnerability CVE-2021-31245
Published: 2021-05-06

Description:
omr-admin.py in openmptcprouter-vps-admin 0.57.3 and earlier compares the user provided password with the original password in a length dependent manner, which allows remote attackers to guess the password via a timing attack.

Type:

CWE-287

 (Improper Authentication)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Openmptcprouter -> Openmptcprouter 

 References:
https://github.com/Ysurac/openmptcprouter-vps-admin
https://www.openmptcprouter.com/
https://github.com/Ysurac/openmptcprouter-vps-admin/commit/a01cbc8c3d3b8bb7720bf3ff234671b4c0e1859c#diff-b89ee68e63302a732d4bde35eb04a205b06f1611147e139642356f173195ab80
https://medium.com/d3crypt/timing-attack-on-openmptcprouter-vps-admin-authentication-cve-2021-31245-12dd92303e1
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