Arbitrary file upload in Octobot
CVE-2021-36711
WebInterface in OctoBot before 0.4.4 allows remote code execution because Tentacles upload is mishandled.
Vulnerability class: Unrestricted File Upload
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: 0.166 (96.9th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.158 · newest: 0.166 · change: +0.008
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.octobot.online/ (Vendor Advisory)
- packetstormsecurity.com/files/167721/Sashimi-Evil-OctoBot-Tentacle.html (VDB Entry, Third Party Advisory)
- github.com/Nwqda/Sashimi-Evil-OctoBot-Tentacle (Exploit, Third Party Advisory)
- github.com/Drakkar-Software/OctoBot/issues/1966 (Exploit, Third Party Advisory)
- github.com/Drakkar-Software/OctoBot/blob/master/CHANGELOG.md (Third Party Advisory)
- packetstormsecurity.com/files/167780/OctoBot-WebInterface-0.4.3-Remote-Code-Exe… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-36711?
- CVE-2021-36711 is a critical-severity vulnerability in Octobot, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2022-07-16.
- How severe is CVE-2021-36711?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-36711 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.