CVE-2021-22143
Published: 22 November 2023
Summary
CVE-2021-22143 is a low-severity Exposure of Sensitive Information to an Unauthorized Actor (CWE-200) vulnerability in Elastic Apm .Net Agent. Its CVSS base score is 2.1 (Low).
Operationally, ranked at the 44.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-2978
Vulnerability details
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…
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error it is possible the headers will not be sanitized before being sent.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Monitoring directly detects unauthorized disclosure of sensitive information, enabling response to exposures.
Coordinating audit logging across organizational boundaries reduces the risk of sensitive audit data being exposed to unauthorized actors during transmission.
A data action map identifies locations where sensitive information may be exposed to unauthorized actors during processing or transfer.
The control's identification, isolation, alerting, and eradication steps directly limit the impact and exploitation window of unauthorized sensitive information exposure.
Requiring organization-defined processing conditions on specific PII categories directly reduces the chance that personal data will be exposed to unauthorized actors.
The assessment process surfaces design decisions that could expose sensitive (including PII) data to unauthorized actors, prompting controls that reduce such exposure.
Directly prevents exposure of critical organizational information by applying OPSEC processes across the SDLC.
Filtering output to only permitted content stops unintended disclosure of sensitive information to unauthorized actors.