Apache NiFi up to 1.11.4 Notification Service Manager xml external entity reference

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Apache NiFi up to 1.11.4. It has been classified as critical. This affects an unknown part of the component Notification Service Manager. Performing a manipulation results in xml external entity reference. This vulnerability was named CVE-2020-13940. There is no available exploit.

Detailsinfo

A vulnerability classified as critical has been found in Apache NiFi up to 1.11.4. This affects an unknown code block of the component Notification Service Manager. The manipulation with an unknown input leads to a xml external entity reference vulnerability. CWE is classifying the issue as CWE-611. The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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).

The weakness was presented 10/01/2020 (Website). The advisory is shared at nifi.apache.org. This vulnerability is uniquely identified as CVE-2020-13940 since 06/08/2020. The requirement for exploitation is a authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/14/2020).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Xml external entity reference
CWE: CWE-611 / CWE-610
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/08/2020 🔍
10/01/2020 +115 days 🔍
10/02/2020 +1 days 🔍
11/15/2020 +44 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: nifi.apache.org
Status: Not defined

CVE: CVE-2020-13940 (🔍)
GCVE (CVE): GCVE-0-2020-13940
GCVE (VulDB): GCVE-100-162153

Entryinfo

Created: 10/02/2020 07:22
Updated: 11/15/2020 12:25
Changes: 10/02/2020 07:22 (36), 10/02/2020 07:27 (3), 10/04/2020 17:21 (1), 11/14/2020 09:34 (5), 11/15/2020 12:25 (14)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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