CVE-2020-8134: Server-side Request Forgery (SSRF) Vulnerability in Ghost CMS
Summary
CVE-2020-8134: Server-side request forgery (SSRF) vulnerability in Ghost CMS < 3.10.0 allows an attacker to scan local or external network or otherwise interact with internal systems. Affects ghost versions < 3.10.0. Fixed in 3.10.0. How to fix ↓
Also tracked for
- ghost · npm
The same CVE-2020-8134 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.
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Background
Ghost CMS is an open-source content management system built on Node.js. It is widely used for creating and managing websites and blogs. The vulnerability identified as CVE-2020-8134 allows an attacker to exploit server-side request forgery (SSRF) and potentially scan local or external networks or interact with internal systems.
Vulnerability Detail
The SSRF vulnerability in Ghost CMS < 3.10.0 enables an attacker to manipulate the server to make requests on their behalf. This can lead to unauthorized access to internal resources, such as databases or other sensitive systems. The attacker can use this vulnerability to scan the local or external network, gather information, or perform actions that should be restricted.
How To Fix
Minimum fixed version
3.10.0
This is the first release that contains the fix.
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Workaround
If updating to the latest version is not immediately possible, a temporary workaround is to implement network-level protections. This can be achieved by configuring firewalls or network security groups to restrict outgoing requests from the application server to external or internal systems. By limiting the destinations and protocols that the server can access, the impact of the SSRF vulnerability can be minimized.
Conclusion
The SSRF vulnerability in Ghost CMS < 3.10.0 poses a significant risk to the security of the application and the underlying systems. It is crucial to update to the latest version and implement network-level protections to mitigate the potential impact. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
A server-side request forgery (SSRF) vulnerability allows an attacker to manipulate a server to make requests on their behalf. This can lead to unauthorized access to internal resources or interactions with restricted systems.
The SSRF vulnerability in Ghost CMS can enable an attacker to scan local or external networks, gather sensitive information, or interact with internal systems that should be restricted. This can lead to unauthorized access, data breaches, or further exploitation of the compromised systems.
To protect your Ghost CMS installation, it is crucial to update to version 3.10.0 or later. Additionally, implementing network-level protections, such as configuring firewalls or network security groups, can help restrict outgoing requests and minimize the impact of the SSRF vulnerability.
At the time of this report, there are no known instances of this vulnerability being actively exploited. However, it is essential to apply the recommended updates and security measures to prevent potential exploitation.
For more information about this vulnerability, you can refer to the official vulnerability report on the Bitnami Vulnerability Database: https://github.com/bitnami/vulndb/tree/main/data/ghost/BIT-ghost-2020-8134.json
References
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