CVE-2021-40870
Aviatrix Controller Unrestricted Upload of File
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 1 February 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
An issue was discovered in Aviatrix Controller 6.x before 6.5-1804.1922. Unrestricted upload of a file with a dangerous type is possible, which allows an unauthenticated user to execute arbitrary code via directory traversal.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 93.02% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 18 January 2022 · due 1 February 2022
- Weakness
- CWE-23
- Affected
- aviatrix/controller
- Source
- cve@mitre.org
EPSS 93.0% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2021-40870
References
- http://packetstormsecurity.com/files/164461/Aviatrix-Controller-6.x-Path-Traversal-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- https://docs.aviatrix.com/HowTos/UCC_Release_Notes.html#security-note-9-11-2021Release Notes, Vendor Advisory
- https://wearetradecraft.com/advisories/tc-2021-0002/Exploit, Third Party Advisory
- http://packetstormsecurity.com/files/164461/Aviatrix-Controller-6.x-Path-Traversal-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- https://docs.aviatrix.com/HowTos/UCC_Release_Notes.html#security-note-9-11-2021Release Notes, Vendor Advisory
- https://wearetradecraft.com/advisories/tc-2021-0002/Exploit, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40870US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.