CVE-2020-13940: Vulnerability Analysis & Exploit Details

Status: Analyzed - Last modified: 05-10-2020 Published: 01-10-2020

CVE-2020-13940
Vulnerability Scoring

5.5
/10

Attack Complexity Details

  • Attack Complexity: Low Impact
  • Attack Vector: LOCAL
  • Privileges Required: None
  • Scope: UNCHANGED
  • User Interaction: REQUIRED

CIA Impact Definition

  • Confidentiality: HIGH IMPACT
  • Integrity:
  • Availability:

CVE-2020-13940 Vulnerability Summary

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).

Access Complexity Graph for CVE-2020-13940

Impact Analysis for CVE-2020-13940

CVE-2020-13940: Detailed Information and External References

EPSS

0.00044

EPSS %

0.15032

References

0.00044

CWE

CWE-611

CAPEC

0.00044

  • Data Serialization External Entities Blowup: This attack takes advantage of the entity replacement property of certain data serialization languages (e.g., XML, YAML, etc.) where the value of the replacement is a URI. A well-crafted file could have the entity refer to a URI that consumes a large amount of resources to create a denial of service condition. This can cause the system to either freeze, crash, or execute arbitrary code depending on the URI.

Vulnerable Configurations

  • cpe:2.3:a:apache:nifi:1.0.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.0.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.0.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.0.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.0.0:beta:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.0.0:beta:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.0.0:beta-rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.0.0:beta-rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.0.1:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.0.1:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.0.1:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.0.1:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.1.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.1.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.1.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.1.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.1.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.1.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.1.1:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.1.1:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.1.1:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.1.1:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.1.2:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.1.2:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.1.2:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.1.2:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.2.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.2.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.2.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.2.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.2.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.2.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.3.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.3.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.3.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.3.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.5.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.5.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.5.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.5.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.6.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.6.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.6.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.6.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.6.0:rc3:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.6.0:rc3:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.7.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.7.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.7.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.7.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.7.1:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.7.1:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.7.1:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.7.1:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.8.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.8.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.8.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.8.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.8.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.8.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.8.0:rc3:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.8.0:rc3:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.9.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.9.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.9.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.9.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.9.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.9.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.9.1:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.9.1:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.9.1:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.9.1:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.9.2:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.9.2:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.9.2:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.9.2:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.9.2:rc2:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.9.2:rc2:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.10.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.10.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.10.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.10.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.10.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.10.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.10.0:rc3:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.10.0:rc3:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.11.0:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.11.0:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.11.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.11.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.11.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.11.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.11.0:rc3:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.11.0:rc3:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.11.1:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.11.1:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.11.1:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.11.1:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.11.2:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.11.2:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.11.3:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.11.3:-:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.11.3:rc1:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.11.3:rc1:*:*:*:*:*:*
  • cpe:2.3:a:apache:nifi:1.11.4:-:*:*:*:*:*:*
    cpe:2.3:a:apache:nifi:1.11.4:-:*:*:*:*:*:*

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

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