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CVE-2020-13940

MEDIUMCVSS 5.5/10EPSS 1.89%

Last modified

CVE-2020-13940 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In Apache NiFi 1.0.0 to 1.11.4, the notification service manager and various policy authorizer and user group provider objects allowed trusted administrators to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE).. EPSS estimates a 1.89% chance of exploitation in the next 30 days.

Description

In Apache NiFi 1.0.0 to 1.11.4, the notification service manager and various policy authorizer and user group provider objects allowed trusted administrators to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE).

Metrics

CVSS 3.1
5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS Probability
1.89%

76.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
ApacheNifi>= 1.0.0, <= 1.11.4

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-13940?
In Apache NiFi 1.0.0 to 1.11.4, the notification service manager and various policy authorizer and user group provider objects allowed trusted administrators to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE).
How severe is CVE-2020-13940?
CVE-2020-13940 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.89% probability of exploitation in the next 30 days.
How do I fix CVE-2020-13940?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-13940?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST