TimescaleDB has incorrect access control

TimescaleDB, an open-source time-series SQL database, has a privilege escalation vulnerability in versions 2.8.0 through 2.9.2. During installation, TimescaleDB creates a telemetry job that is runs as the installation user. The queries run as part of the telemetry data collection were not run with a locked down `search_path`, allowing malicious users to create functions that would be executed by the telemetry job, leading to privilege escalation. In order to be able to take advantage of this vulnerability, a user would need to be able to create objects in a database and then get a superuser to install TimescaleDB into their database. When TimescaleDB is installed as trusted extension, non-superusers can install the extension without help from a superuser. Version 2.9.3 fixes this issue. As a mitigation, the `search_path` of the user running the telemetry job can be locked down to not include schemas writable by other users. The vulnerability is not exploitable on instances in Timescale Cloud and Managed Service for TimescaleDB due to additional security provisions in place on those platforms.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

访问控制不恰当

Timescale TimescaleDB 访问控制错误漏洞

Timescale TimescaleDB是美国Timescale公司的一个开源数据库软件。旨在使 SQL 可扩展以适用于时间序列数据。 Timescale TimescaleDB 2.8.0 到 2.9.2版本存在访问控制错误漏洞，该漏洞源于在安装期间，TimescaleDB 创建一个遥测作业，该作业以安装用户身份运行， 然而遥测数据收集的一部分运行查询未在锁定的“search_path”下运行，从而允许恶意用户创建将由遥测作业执行的函数，攻击者利用该漏洞可以导致权限提升。

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