CVE-2017-8449 Information disclosure in Elastic X-Pack Security

What is CVE-2017-8449?

CVE-2017-8449 is a medium-severity vulnerability in Elastic X-Pack Security, published on 16 Jun 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

X-Pack Security 5.2.x would allow access to more fields than the user should have seen if the field level security rules used a mix of grant and exclude rules when merging multiple rules with field level security rules for the same index.

Weakness: CWE-200, CWE-732

Which versions are affected by CVE-2017-8449?

It affects 1 product.

Products include Elastic X-Pack.

How do I fix CVE-2017-8449?

No fix has been published for CVE-2017-8449 yet. Limit exposure of the affected software until one is available.

Is CVE-2017-8449 being exploited?

There is no known exploitation of CVE-2017-8449 in the wild and no public exploit code.

Other vulnerabilities in Elastic X-Pack Security

• CVE-2018-3822 Auth bypass in X-Pack Security Critical 9.8
• CVE-2017-8448 Privilege escalation in Elastic X-Pack Alerting High 8.8
• CVE-2017-8438 Privilege escalation in X-Pack Security High 8.8
• CVE-2017-8450 Missing authorization in Elastic X-Pack Security High 7.5
• CVE-2017-8447 Privilege escalation in Elastic X-Pack Security Medium 6.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-wx3g-r3fp-jg5g.