CVE-2017-5640

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CVSS 3.0

9.8 critical

EPSS

3%p86

Published

Jul 10, 2017 (Jul 10, 2017)

Modified

Jun 17, 2026

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.

Vendors: apache
Products: impala
Weakness: CWE-287
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (2.9%)

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