Id:
CVE-2020-28463
Comment
:
All versions of package reportlab are vulnerable to Server-side Request Forgery (SSRF) via img tags. In order to reduce risk, use trustedSchemes & trustedHosts (see in Reportlab's documentation) Steps to reproduce by Karan Bamal: 1. Download and install the latest package of reportlab 2. Go to demos -> odyssey -> dodyssey 3. In the text file odyssey.txt that needs to be converted to pdf inject <img src="http://127.0.0.1:5000" valign="top"/> 4. Create a nc listener nc -lp 5000 5. Run python3 dodyssey.py 6. You will get a hit on your nc showing we have successfully proceded to send a server side request 7. dodyssey.py will show error since there is no img file on the url, but we are able to do SSRF
CVSSv2 Score:
4
Access vector:
|
NETWORK
|
Access complexity:
|
LOW
|
Authentication:
|
SINGLE
|
Confidentiality impact:
|
PARTIAL
|
Integrity impact:
|
NONE
|
Availability impact:
|
NONE
|
CVSSv2 Vector:
AV:N/AC:L/Au:S/C:P/I:N/A:N
CVSSv3 Score:
6.5
Attack vector:
|
NETWORK
|
Attack complexity:
|
LOW
|
Privileges required:
|
LOW
|
User interaction:
|
NONE
|
Scope:
|
UNCHANGED
|
Confidentiality impact:
|
HIGH
|
Integrity impact:
|
NONE
|
Availability impact:
|
NONE
|
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References: