Elastic APM .NET Agent prior 1.10.0 HTTP Header information disclosure

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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2.8$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Elastic APM .NET Agent. Affected by this vulnerability is an unknown functionality of the component HTTP Header Handler. Performing a manipulation results in information disclosure. This vulnerability is cataloged as CVE-2021-22143. The attack must originate from the local network. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Elastic APM .NET Agent. It has been classified as problematic. This affects an unknown code of the component HTTP Header Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

The Elastic APM .NET Agent can leak sensitive HTTP header information when logging the details during an application error. Normally, the APM agent will sanitize sensitive HTTP header details before sending the information to the APM server. During an application error it is possible the headers will not be sanitized before being sent.

The weakness was shared 11/22/2023. The advisory is shared at discuss.elastic.co. This vulnerability is uniquely identified as CVE-2021-22143 since 01/04/2021. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading to version 1.10.0 eliminates this vulnerability.

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Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.8
VulDB Meta Temp Score: 2.8

VulDB Base Score: 2.1
VulDB Temp Score: 2.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CNA Base Score: 2.1
CNA Vector (Elastic): 🔍

CVSSv2info

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

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: APM .NET Agent 1.10.0

Timelineinfo

01/04/2021 🔍
11/22/2023 +1052 days 🔍
11/22/2023 +0 days 🔍
12/15/2023 +23 days 🔍

Sourcesinfo

Advisory: discuss.elastic.co
Status: Confirmed

CVE: CVE-2021-22143 (🔍)
GCVE (CVE): GCVE-0-2021-22143
GCVE (VulDB): GCVE-100-245949

Entryinfo

Created: 11/22/2023 07:16
Updated: 12/15/2023 15:32
Changes: 11/22/2023 07:16 (49), 12/15/2023 15:32 (11)
Complete: 🔍
Cache ID: 216::103

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