Known exploited vulnerability
CVE-2021-40870
The short answer
CVE-2021-40870 affects n/a n/a and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2022-01-18: attackers are using it, so patch it first.
What it is
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.
Weakness: CWE-23.
Severity
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Jan 18, 2022
Federal due date Feb 1, 2022
EPSS, next 30 days
93%
Higher than 100% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply updates per vendor instructions.
Affected products
n/a. NVD's record lists the exact affected versions.
References
- docs.aviatrix.com/HowTos/UCC_Release_Notes.html#security-note-9-11-2021 Release NotesVendor Advisory
- wearetradecraft.com/advisories/tc-2021-0002/ ExploitThird Party Advisory
- docs.aviatrix.com/HowTos/UCC_Release_Notes.html#security-note-9-11-2021 Release NotesVendor Advisory
- wearetradecraft.com/advisories/tc-2021-0002/ ExploitThird Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40870 US Government Resource
Questions
Is CVE-2021-40870 being exploited?
Yes. CISA added CVE-2021-40870 to its Known Exploited Vulnerabilities catalog on 2022-01-18, with a federal remediation due date of 2022-02-01.
How do I fix CVE-2021-40870?
CISA's required action: Apply updates per vendor instructions.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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