OpenTSDB TAG Validation os command injection

Summaryinfo

A vulnerability marked as critical has been reported in OpenTSDB. The affected element is an unknown function of the component TAG Validation Handler. This manipulation causes os command injection. The identification of this vulnerability is CVE-2023-25826. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in OpenTSDB (the affected version is unknown). It has been declared as very critical. Affected by this vulnerability is an unknown code of the component TAG Validation Handler. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Due to insufficient validation of parameters passed to the legacy HTTP query API, it is possible to inject crafted OS commands into multiple parameters and execute malicious code on the OpenTSDB host system. This exploit exists due to an incomplete fix that was made when this vulnerability was previously disclosed as CVE-2020-35476. Regex validation that was implemented to restrict allowed input to the query API does not work as intended, allowing crafted commands to bypass validation.

The weakness was shared 05/04/2023. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2023-25826 since 02/15/2023. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/04/2023). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

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Productinfo

Name

• OpenTSDB

Website

• Product: https://github.com/OpenTSDB/opentsdb/

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