Medium severity · published Dec 12, 2023
CVE-2023-6687
An issue was discovered by Elastic whereby Elastic Agent would log a raw event in its own logs at the WARN or ERROR level if ingesting that event to Elasticsearch failed with any…
6.5
CVSS
0.6%
EPSS
No
On KEV
Description
An issue was discovered by Elastic whereby Elastic Agent would log a raw event in its own logs at the WARN or ERROR level if ingesting that event to Elasticsearch failed with any 4xx HTTP status code except 409 or 429. Depending on the nature of the event that Elastic Agent attempted to ingest, this could lead to the insertion of sensitive or private information in the Elastic Agent logs. Elastic has released 8.11.3 and 7.17.16 that prevents this issue by limiting these types of logs to DEBUG level logging, which is disabled by default.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EA
Elastic Agent · Elastic
7.0.0 before 7.17.16; 8.0.0 before 8.11.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-6687
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-6687
Mitigation
https://discuss.elastic.co/t/beats-and-elastic-agent-8-11-3-7-17-16-security-update-esa-2023-30/349180
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