CVE-2022-34800: Plaintext Storage of a Password in Jenkins Build Notifications Plugin
Summary
CVE-2022-34800: Plaintext Storage of a Password in Jenkins Build Notifications Plugin. Affects tools.devnull:build-notifications versions < 1.5.0. No fix is published. How to fix ↓
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Background
The Jenkins Build Notifications Plugin is a tool used for sending build notifications to various messaging platforms such as Pushover, Slack, and Telegram. It is an open-source plugin developed for the Jenkins automation server. The plugin allows users to configure different tokens for each messaging platform to enable notifications. However, versions 1.5.0 and earlier of the plugin store these tokens in plaintext format in global configuration files on the Jenkins controller. This vulnerability exposes sensitive information and puts the security of the messaging platforms at risk.
Vulnerability Detail
The vulnerability in the Jenkins Build Notifications Plugin arises from the insecure storage of tokens in plaintext format. Specifically, the Pushover Application Token, Slack Bot Token, and Telegram Bot Token are stored unencrypted in their respective configuration files. This means that anyone with access to the Jenkins controller can easily retrieve these tokens and potentially misuse them. Attackers could use the exposed tokens to send unauthorized notifications or gain unauthorized access to the associated messaging platforms. The impact of this vulnerability depends on the sensitivity of the information accessible through the affected messaging platforms.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, users can manually encrypt the tokens before storing them in the configuration files. This can be achieved by using encryption libraries or tools available in the programming language or framework being used. By encrypting the tokens, even if an attacker gains access to the configuration files, they will not be able to retrieve the actual tokens. However, it is important to note that this workaround is not a permanent solution and should be used only until the plugin is updated to a secure version.
Conclusion
The Jenkins Build Notifications Plugin suffers from a vulnerability that allows plaintext storage of sensitive tokens used for build notifications. This can lead to unauthorized access to messaging platforms and potential misuse of the exposed tokens. To mitigate this risk, it is crucial to upgrade to a secure version of the plugin, such as version 1.5.1 or later. In the meantime, users can employ a temporary workaround by manually encrypting the tokens before storing them. For additional support and guidance on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability exposes sensitive tokens used for build notifications, potentially allowing unauthorized access to the associated messaging platforms. The impact depends on the sensitivity of the information accessible through these platforms.
You can use the Vulert Playground at Vulert Scanner to check if your application is affected by this vulnerability. Vulert monitors and alerts in real-time for open-source vulnerabilities without requiring access to the code or installation.
Yes, the developers of the Jenkins Build Notifications Plugin have released a fix in version 1.5.1. It is recommended to upgrade to this version or any subsequent versions that include the fix.
Yes, as a temporary workaround, you can manually encrypt the tokens before storing them in the configuration files. However, this workaround should only be used until the plugin is updated to a secure version.
For further support on vulnerability remediation, you can contact info@devnack.com. They can provide guidance and assistance in addressing this vulnerability.
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