GitHub Advisory DatabaseGHSA-J3JP-GVR5-7HWQpython-engineio vulnerable to Cross-Site Request Forgery (CSRF)
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
31.5%
WebSocket cross-origin vulnerability
Impact
This is a Cross-Site Request Forgery (CSRF) vulnerability. It affects Socket.IO and Engine.IO web servers that authenticate clients using cookies.
Patches
python-engineio version 3.9.0 patches this vulnerability by adding server-side Origin header checks.
Workarounds
Do not use cookies for client authentication, or else add a CSRF token to the connection URL.
References
https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF)
https://www.christian-schneider.net/CrossSiteWebSocketHijacking.html
For more information
If you have any questions or comments about this advisory:
- Open an issue in python-engineio
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| python-engineio_project | python-engineio | * | cpe:2.3:a:python-engineio_project:python-engineio:*:*:*:*:*:*:*:* |
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
31.5%