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Given the rise in professional cybercrime networks actively seeking out these vulnerabilities, it's crucial that any potential threats are promptly addressed and the community is informed. The most effective method to do this is by publishing a CVE, like the one provided below.
Should you discover any vulnerabilities, please report them to us at: report[@]security-presta.org or visit https://security-presta.org for more information.
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[CVE-2022-40842] Server-Side Request Forgery (SSRF) NdkAdvancedCustomizationFields from ndk design a module for PrestaShop
In NdkAdvancedCustomizationFields module for PrestaShop before 4.1.7, an anonymous user can perform a Server-Side Request Forgery (SSRF) in affected versions. 4.1.7 fixed the vulnerability.
Summary
- CVE ID: CVE-2022-40842
- Published at: 2022-11-01
- Advisory source: @daaaalllii
- Platform: PrestaShop
- Product: ndk_advanced_custom_fields
- Impacted release: <= 4.1.6 (4.1.7 fixed the vulnerability)
- Product author: ndk design
- Weakness: CWE-918
- Severity: critical (9.1)
Description
In the NdkAdvancedCustomizationFields module for PrestaShop up to version 4.1.6, an improper validation of loc parameter in the rotateimg.php script can be executed via a trivial HTTP call to forge Server-Side Request. This vulnerability can be exploited to initiate a blind HTTP request, for instance, use the vulnerable website as proxy to attack others websites.
CVSS base metrics
- Attack vector: network
- Attack complexity: low
- Privilege required: none
- User interaction: none
- Scope: unchanged
- Confidentiality: high
- Integrity: high
- Availability: none
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Possible malicious usage
- Attack others websites via the vulnerability
- Bypass WAF/.htaccess restrictions
Proof of concept
http://localhost/modules/ndk_advanced_custom_fields/rotateimg.php?loc=SSRF_PAYLOAD&rot=90&top=1000&left=1000&width=1000&height=1000&imgwidth=1000
Patch
Remove the file or apply this patch :
--- a/modules/ndk_advanced_custom_fields/rotateimg.php
+++ b/modules/ndk_advanced_custom_fields/rotateimg.php
<?php
+ die();
Other recommandations
- It’s recommended to upgrade the module beyong 4.1.7.
- Activate OWASP 931’s rules on your WAF (Web application firewall), be warned that you will probably break your backoffice and you will need to pre-configure some bypasses against these set of rules.
Timeline
| Date | Action |
|---|---|
| 01-11-2022 | GitHub Poc |
| 26-07-2023 | Publish this advisory on security |
Links
DISCLAIMER: The French Association Friends Of Presta (FOP) acts as an intermediary to help hosting this advisory. While we strive to ensure the information and advice provided are accurate, FOP cannot be held liable for any consequences arising from reported vulnerabilities or any subsequent actions taken.
This advisory and patch is licensed under CC BY-SA 4.0
