CVE-2021-26102: Path Traversal
First published: Thu Dec 19 2024(Updated: )
A relative path traversal vulnerability (CWE-23) in FortiWAN version 4.5.7 and below, 4.4 all versions may allow a remote non-authenticated attacker to delete files on the system by sending a crafted POST request. In particular, deleting specific configuration files will reset the Admin password to its default value.
Credit: psirt@fortinet.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Fortinet FortiWan | <=4.5.7=4.4 | |
| Fortinet FortiWan | >=4.4.0<4.5.8 |
Remedy
Please upgrade to FortiWAN version 4.5.8 or above Please upgrade to AscenLink version 7.2.24 or above
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-26102?
CVE-2021-26102 is considered a high severity vulnerability due to its potential impact on system integrity.
How do I fix CVE-2021-26102?
To fix CVE-2021-26102, upgrade FortiWAN to version 4.5.8 or later.
Who is affected by CVE-2021-26102?
CVE-2021-26102 affects FortiWAN versions 4.5.7 and below, as well as all versions of 4.4.
What type of vulnerability is CVE-2021-26102?
CVE-2021-26102 is a relative path traversal vulnerability (CWE-23).
What can an attacker do with CVE-2021-26102?
An attacker exploiting CVE-2021-26102 can delete system files, including specific configuration files that may reset the Admin password.
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- version/fortinet fortiwan/4.4.0