Critical Memcache Signing Bypass Vulnerability in python-keystoneclient
Summary
CVE-2013-2167: python-keystoneclient version 0.2.3 to 0.2.5 has middleware memcache signing bypass. Affects python-keystoneclient versions < 1:0.2.5-2. Fixed in 1:0.2.5-2. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Habilume
Habit tracker with a companion that grows with you
Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
Background
python-keystoneclient is a client library for interacting with the OpenStack Keystone API, which provides authentication and authorization services for cloud applications. This library is essential for developers working with OpenStack, as it allows them to manage users, roles, and tokens effectively. The vulnerability in question affects versions 0.2.3 to 0.2.5, where a flaw in the middleware allows for a bypass of memcache signing, potentially leading to unauthorized access to sensitive data.
Vulnerability Detail
The vulnerability, identified as CVE-2013-2167, arises from a flaw in the middleware of python-keystoneclient that allows attackers to bypass the signing mechanism for memcache. This could enable unauthorized users to manipulate or access cached authentication tokens, leading to unauthorized access to resources. The severity of this vulnerability is underscored by its CVSS score of 9.8, indicating a critical risk to systems utilizing affected versions of the library. Attackers exploiting this vulnerability could gain elevated privileges and access sensitive information, posing significant security risks.
How To Fix
Minimum fixed version
1:0.2.5-2
This is the first release that contains the fix.
sudo apt-get install --only-upgrade python-keystoneclientTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If an immediate upgrade is not feasible, consider implementing additional security measures such as restricting access to the memcache service or using alternative caching mechanisms until the upgrade can be performed.
Conclusion
The memcache signing bypass vulnerability in python-keystoneclient poses a critical risk to applications using affected versions of the library. It is essential for users to upgrade to the latest version to mitigate this risk. Additionally, utilizing tools like Vulert can help monitor and alert for such vulnerabilities in real-time.
See every vulnerability recorded for python-keystoneclient →
FAQ
CVE-2013-2167 is a vulnerability in python-keystoneclient that allows for a bypass of the memcache signing mechanism, potentially leading to unauthorized access.
Versions 0.2.3 to 0.2.5 of python-keystoneclient are affected by this vulnerability.
Exploitation of this vulnerability could allow unauthorized users to access sensitive data and resources, leading to significant security breaches.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
If an upgrade is not possible, consider implementing additional security measures such as restricting access to the memcache service.
Related vulnerabilities
Recent vulnerabilities recorded for python-keystoneclient.
Habilume
Habit tracker with a companion that grows with you
Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
