CVE-2021-31245
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure.
- Exploit odds
- 2.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 2.1% in the next 30 days (EPSS).
- Severity: 5.9 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 2.1% · EPSS, next 30 days
- Weakness
- CWE-287 · Improper authentication
- Record status
- Modified
Affected
- Openmptcprouter ≤ 0.57.3
Attack profile CVSS 3.1 · 5.9
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2021-31245.md and follow it. Check whether this project is affected by CVE-2021-31245. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- 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
- 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
- https://www.openmptcprouter.com/
References
- https://github.com/Ysurac/openmptcprouter-vps-admin
- 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
- https://www.openmptcprouter.com/
- https://github.com/Ysurac/openmptcprouter-vps-admin
- 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
- https://www.openmptcprouter.com/