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ubuntucveUbuntu.comUB:CVE-2020-28463
HistoryFeb 18, 2021 - 12:00 a.m.

CVE-2020-28463

2021-02-1800:00:00
ubuntu.com
ubuntu.com
13

4 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:S/C:P/I:N/A:N

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

0.002 Low

EPSS

Percentile

52.6%

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” />
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

4 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:S/C:P/I:N/A:N

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

0.002 Low

EPSS

Percentile

52.6%