CVE-2020-35476 : A remote code execution vulnerability occurs in OpenTSDB through 2.4.0 via comma

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.)

Published 2020-12-16 08:15:14

Updated 2023-03-03 15:34:17

Source MITRE

View at NVD, CVE.org

Vulnerability category: Execute code

Products affected by CVE-2020-35476

Opentsdb » Opentsdb
Versions up to, including, (<=) 2.4.0
cpe:2.3:a:opentsdb:opentsdb:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2020-35476

EPSS FAQ

93.68%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 100 %

Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2020-35476

OpenTSDB 2.4.0 unauthenticated command injection

Disclosure Date: 2020-11-18

First seen: 2023-09-11

exploit/linux/http/opentsdb_yrange_cmd_injection

This module exploits an unauthenticated command injection vulnerability in the yrange parameter in OpenTSDB through 2.4.0 (CVE-2020-35476) in order to achieve unauthenticated remote code execution as the root user. The module first attempts to obta

More information

CVSS scores for CVE-2020-35476

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2020-35476

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2020-35476

http://packetstormsecurity.com/files/170331/OpenTSDB-2.4.0-Command-Injection.html

OpenTSDB 2.4.0 Command Injection ≈ Packet Storm
Exploit;Third Party Advisory;VDB Entry
https://github.com/OpenTSDB/opentsdb/issues/2051

OpenTSDB 2.4.0 Remote Code Execution · Issue #2051 · OpenTSDB/opentsdb · GitHub
Exploit;Issue Tracking;Third Party Advisory

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