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Medium severity · published Nov 22, 2023
CVE-2021-22143
The Elastic APM .NET Agent can leak sensitive HTTP header information when logging the details during an application error
4.3
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AN
Apm .net Agent · Elastic
before 1.10.0 · source: NVD
Affected product
AN
Apm .net Agent
Elastic
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-22143
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-22143
Vendor Advisory
https://discuss.elastic.co/t/elastic-apm-net-agent-1-10-0-security-update/274668
Vendor Advisory
https://www.elastic.co/community/security