Vulnerability in Jetty - Timing Attack Reveals Cryptographic Credentials
Summary
DLA-1020-1: jetty - security update. Affects jetty versions < 6.1.26-1+deb7u1. Fixed in 6.1.26-1+deb7u1. How to fix ↓
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Background
Jetty is a Java servlet engine and webserver that provides support for HTTP/2, WebSocket, and other Java-based web technologies. It is widely used in various applications and frameworks for serving web content. However, a vulnerability has been discovered in Jetty that allows for a timing attack, potentially exposing cryptographic credentials such as passwords to a local user.
Vulnerability Detail
The vulnerability in Jetty arises from a timing attack, which is a type of side-channel attack that exploits variations in the execution time of a cryptographic operation. By carefully measuring the time it takes for certain operations to complete, an attacker can infer sensitive information, such as passwords or cryptographic keys. In the case of Jetty, this timing attack can be carried out by a local user, potentially compromising the security of the system.
How To Fix
Minimum fixed version
6.1.26-1+deb7u1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade jettyTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability. However, it is crucial to ensure that only trusted users have local access to the system running Jetty. Limiting access privileges and implementing strong authentication mechanisms can help mitigate the risk of a timing attack.
Conclusion
The vulnerability in Jetty that allows for a timing attack can potentially expose cryptographic credentials to a local user. To mitigate this risk, it is important to upgrade the Jetty package to the latest version. Additionally, limiting access privileges and implementing strong authentication mechanisms can help enhance the security of the system. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
A timing attack is a type of side-channel attack that exploits variations in the execution time of a cryptographic operation to infer sensitive information.
This vulnerability can be exploited by a local user who has access to the system running Jetty.
The timing attack in Jetty can potentially expose cryptographic credentials, such as passwords, to an attacker. This can lead to unauthorized access to sensitive information and compromise the security of the system.
To fix this vulnerability in Debian 7 Wheezy, you should upgrade the Jetty package to version 6.1.26-1+deb7u1 or later. This can be done through the package management system or by manually downloading the updated package from the official Debian repositories.
You can find more information about Debian LTS security advisories, including how to apply updates and frequently asked questions, on the Debian LTS wiki: https://wiki.debian.org/LTS
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