RCE in Opentsdb
CVE-2020-35476
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.)
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.853 (99.7th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.853 · newest: 0.853 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/OpenTSDB/opentsdb/issues/2051 (Exploit, Third Party Advisory, Issue Tracking)
- packetstormsecurity.com/files/170331/OpenTSDB-2.4.0-Command-Injection.html (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-35476?
- CVE-2020-35476 is a critical-severity vulnerability in Opentsdb, classified under OS Command Injection. CVSS score: 9.8/10. Published 2020-12-16.
- How severe is CVE-2020-35476?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-35476 known to be exploited?
- 35 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.