CVE-2017-5640
9.8
CRITICAL · CVSS 3.0 · EPSS 2.9% (pctl 86)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
It was noticed that a malicious process impersonating an Impala daemon in Apache Impala (incubating) 2.7.0 to 2.8.0 could cause Impala daemons to skip authentication checks when Kerberos is enabled (but TLS is not). If the malicious server responds with 'COMPLETE' before the SASL handshake has completed, the client will consider the handshake as completed even though no exchange of credentials has happened.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.85% — more likely to be exploited than 86% of all CVEs |
| Weakness | CWE-287 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2017-07-10 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| apache | impala |
References
- http://www.securityfocus.com/bid/99508
- https://lists.apache.org/thread.html/c02e83aa46c90b7cbc87dd649cf8f9b73e11053eddea9144a397da53%40%3Cdev.impala.apache.org%3E
- http://www.securityfocus.com/bid/99508
- https://lists.apache.org/thread.html/c02e83aa46c90b7cbc87dd649cf8f9b73e11053eddea9144a397da53%40%3Cdev.impala.apache.org%3E
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