Apache CouchDB is a database application that is developed under open-source licenses, featuring document-oriented NoSQL data storage technology. The tool is utilized mainly by web developers connecting to the server using HTTP/REST APIs, JavaScript-powered web applications, and external applications.
The CVE-2017-12635 vulnerability detected in Apache CouchDB software is a result of differences in the Erlang-based JSON parser and JavaScript-based JSON parser. This is a loophole in Apache CouchDB before 1.7.0 and 2.x before 2.1.1 which allows the submission of _users documents with duplicate keys for 'roles' used for access control within the database, including the special case '_admin'role, that denotes administrative users. This vulnerability provides a chance to get non-admin users access to arbitrary shell commands on the server as the database system user.
This vulnerability, when exploited, can lead to tampering with, or even loss, of sensitive data, which can be used to carry out sophisticated attacks on businesses, organizations, and even individuals. The loophole can allow unauthorized users to manipulate sensitive information that can lead to security breaches, data loss, reputation damage, or other catastrophic consequences when full admin privileges are granted to a non-admin user.
s4e.io is a platform that provides pro features that can be employed to learn about vulnerabilities in digital assets quickly and efficiently. Using the platform, those who read this article can keep their digital assets such as databases, software, and websites secure at all times by learning about vulnerabilities, their potential impacts, and appropriate measures to take. Users can quickly determine if their digital assets are affected by Apache CouchDB vulnerabilities and protect their databases against potential attacks.
REFERENCES
- exploit-db.com: 44498
- exploit-db.com: 45019
- lists.apache.org: [dev] 20171114 Apache CouchDB CVE-2017-12635 and CVE-2017-12636
- security.gentoo.org: GLSA-201711-16
- lists.debian.org: [debian-lts-announce] 20180121 [SECURITY] [DLA 1252-1] couchdb security update
- securityfocus.com: 101868
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbmu03935en_us
As a precautionary measure against this vulnerability, users of Apache CouchDB systems must take the necessary steps to ensure their systems are well-secured. Some measures that can help to protect against the loophole include:
- Patching Apache CouchDB to at least version 2.1.1, if it's not yet patched.
- Disable access to the Apache CouchDB system, except only for authorized users.
- Actively monitor network activity to spot and respond to any abnormal system behavior.
- Always have up-to-date security software.
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