CVE-2021-36171: Weak RNG
First published: Tue Mar 01 2022(Updated: )
The use of a cryptographically weak pseudo-random number generator in the password reset feature of FortiPortal before 6.0.6 may allow a remote unauthenticated attacker to predict parts of or the whole newly generated password within a given time frame.
Credit: psirt@fortinet.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Fortinet FortiPortal | <=4.0.4 | |
| Fortinet FortiPortal | >=4.1.0<=4.1.2 | |
| Fortinet FortiPortal | >=4.2.0<=4.2.4 | |
| Fortinet FortiPortal | >=5.0.0<=5.0.3 | |
| Fortinet FortiPortal | >=5.1.0<=5.1.2 | |
| Fortinet FortiPortal | >=5.2.0<5.2.7 | |
| Fortinet FortiPortal | >=5.3.0<5.3.7 | |
| Fortinet FortiPortal | >=6.0.0<6.0.6 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2021-36171.
What is the severity of CVE-2021-36171?
The severity of CVE-2021-36171 is high.
What is the affected software for CVE-2021-36171?
The affected software for CVE-2021-36171 is Fortinet FortiPortal versions up to and including 6.0.6.
What is the description of CVE-2021-36171?
CVE-2021-36171 is a vulnerability that allows a remote unauthenticated attacker to predict parts or the whole newly generated password in the password reset feature of FortiPortal before version 6.0.6 due to the use of a weak pseudo-random number generator.
Is there a fix available for CVE-2021-36171?
Yes, a fix is available for CVE-2021-36171. It is recommended to update FortiPortal to version 6.0.6 or later to address this vulnerability.
- collector/nvd-index
- agent/weakness
- agent/author
- agent/type
- agent/severity
- agent/references
- agent/tags
- agent/event
- agent/description
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- collector/mitre-cve
- source/MITRE
- vendor/fortinet
- canonical/fortinet fortiportal
- version/fortinet fortiportal/4.0.4
- version/fortinet fortiportal/4.1.0
- version/fortinet fortiportal/4.1.2
- version/fortinet fortiportal/4.2.0
- version/fortinet fortiportal/4.2.4
- version/fortinet fortiportal/5.0.0
- version/fortinet fortiportal/5.0.3
- version/fortinet fortiportal/5.1.0
- version/fortinet fortiportal/5.1.2
- version/fortinet fortiportal/5.2.0
- version/fortinet fortiportal/5.3.0
- version/fortinet fortiportal/6.0.0