CVE-2023-49921: elasticsearch — Fix

Description

An issue was discovered by Elastic whereby Watcher search input logged the search query results on DEBUG log level. This could lead to raw contents of documents stored in Elasticsearch to be printed in logs. Elastic has released 8.11.2 and 7.17.16 that resolves this issue by removing this excessive logging. This issue only affects users that use Watcher and have a Watch defined that uses the search input and additionally have set the search input’s logger to DEBUG or finer, for example using: org.elasticsearch.xpack.watcher.input.search, org.elasticsearch.xpack.watcher.input, org.elasticsearch.xpack.watcher, or wider, since the loggers are hierarchical.

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CVSS v3.1 Score

5.2

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-532 CWE-532

Affected Products

Vendor	Product	Versions
elastic	elasticsearch	7.0.0 — 7.17.16
elastic	elasticsearch	8.0.0 — 8.11.2

References

Advisories & Patches

https://discuss.elastic.co/t/elasticsearch-8-11-2-7-17-16-security-update-esa-2023-29/349179 https://discuss.elastic.co/t/elasticsearch-8-11-2-7-17-16-security-update-esa-2023-29/349179

Frequently Asked Questions

What is CVE-2023-49921? +

An issue was discovered by Elastic whereby Watcher search input logged the search query results on DEBUG log level. This could lead to raw contents of documents stored in Elasticsearch to be printed in logs. Elastic has released 8.11.2 and 7.17.16 that resolves this issue by removing this excessive logging. This issue only affects users that use Watcher and have a Watch defined that uses the search input and additionally have set the search input’s logger to DEBUG or finer, for example using: org.elasticsearch.xpack.watcher.input.search, org.elasticsearch.xpack.watcher.input, org.elasticsearch.xpack.watcher, or wider, since the loggers are hierarchical. It has a CVSS v3.1 base score of 5.2 (MEDIUM).

How severe is CVE-2023-49921? +

CVE-2023-49921 has a CVSS v3.1 score of 5.2 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-49921? +

CVE-2023-49921 affects products from elastic, specifically: elasticsearch. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-49921? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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