Vulnerability Report

CVE-2021-40870

RCE CISA KEV Active

Title: Aviatrix Controller unrestricted file upload with directory traversal

RCE

Proof Of Concept

PoC Available for CVE-2021-40870

CWE Category CWE-23
Published Date Sep 13, 2021
Modified Date Nov 10, 2025
Exploit Status Available
Score 9.8 CVSS v3.1
Exploit Probability (EPSS)
93.02%

Vulnerability Summary

CVE-2021-40870: 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.

Impacted Vendors

A
aviatrix 1
I
ibm 1

Reference Links

http://packetstormsecurity.com/files/164461/Aviatrix-Controller-6.x-Path-Traversal-Code-Execution.html https://docs.aviatrix.com/HowTos/UCC_Release_Notes.html#security-note-9-11-2021 https://wearetradecraft.com/advisories/tc-2021-0002/ http://packetstormsecurity.com/files/164461/Aviatrix-Controller-6.x-Path-Traversal-Code-Execution.html https://docs.aviatrix.com/HowTos/UCC_Release_Notes.html#security-note-9-11-2021 https://wearetradecraft.com/advisories/tc-2021-0002/ https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40870
CVSS v3.1
Source Entity [email protected]
Severity CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity HIGH
7.5
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-40870 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/0xAgun/CVE-2021-40870
View Code
GitHub https://github.com/orangmuda/CVE-2021-40870
View Code
GitHub https://github.com/JoyGhoshs/CVE-2021-40870
View Code
MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.