Vulnerability CVE-2020-35476

Vulnerability CVE-2020-35476

Published: 2020-12-16

Description:

A remote code execution vulnerability occurs in OpenTSDB through 2.4.0 via command injection in the yrange parameter. The yrange value is written to a gnuplot file in the /tmp directory. This file is then executed via the mygnuplot.sh shell script. (tsd/GraphHandler.java attempted to prevent command injections by blocking backticks but this is insufficient.)

See advisories in our WLB2 database:

	Topic	Author	Date
Med.	OpenTSDB 2.4.0 Command Injection	Shai rod	24.12.2022

Type:

CWE-77

(Improper Neutralization of Special Elements used in a Command ('Command Injection'))

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score	Impact Subscore	Exploitability Subscore
7.5/10	6.4/10	10/10

Exploit range	Attack complexity	Authentication
Remote	Low	No required
Confidentiality impact	Integrity impact	Availability impact
Partial	Partial	Partial

Affected software
Opentsdb -> Opentsdb

References:

https://github.com/OpenTSDB/opentsdb/issues/2051

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