5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.001 Low
EPSS
Percentile
33.1%
=< [email protected]
users are vulnerable to CRLF Injection on headers when using unsanitized input as request headers, more specifically, inside the content-type
header.
Example:
import { request } from 'undici'
const unsanitizedContentTypeInput = 'application/json\r\n\r\nGET /foo2 HTTP/1.1'
await request('http://localhost:3000, {
method: 'GET',
headers: {
'content-type': unsanitizedContentTypeInput
},
})
The above snippet will perform two requests in a single request
API call:
http://localhost:3000/
http://localhost:3000/foo2
This issue was patched in Undici v5.8.1
Sanitize input when sending content-type headers using user input.
If you have any questions or comments about this advisory:
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.001 Low
EPSS
Percentile
33.1%