CVE-2021-33191

MiNiFi CPP arbitrary script execution is possible on the agent's host machine through the c2 protocol

Description

From Apache NiFi MiNiFi C++ version 0.5.0 the c2 protocol implements an "agent-update" command which was designed to patch the application binary. This "patching" command defaults to calling a trusted binary, but might be modified to an arbitrary value through a "c2-update" command. Said command is then executed using the same privileges as the application binary. This was addressed in version 0.10.0

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 6.75% Top 10%
Third-Party Advisory openwall.com Third-Party Advisory openwall.com
Affected: Apache Software Foundation Apache NiFi - MiNiFi C++
Published at:
Updated at:

References

Link Tags
https://www.openwall.com/lists/oss-security/2021/08/24/1 third party advisory mailing list
http://www.openwall.com/lists/oss-security/2021/08/24/1 third party advisory mailing list
https://lists.apache.org/thread.html/r6f27a2454f5f67dbe4e21c8eb1db537b01863a0bc3758f28aa60f032%40%3Cannounce.apache.org%3E mailing list

Frequently Asked Questions

What is the severity of CVE-2021-33191?
CVE-2021-33191 has been scored as a critical severity vulnerability.
How to fix CVE-2021-33191?
To fix CVE-2021-33191, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-33191 being actively exploited in the wild?
It is possible that CVE-2021-33191 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~7% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-33191?
CVE-2021-33191 affects Apache Software Foundation Apache NiFi - MiNiFi C++.
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