VULNERABILITY INTELLIGENCE

CVE-2017-5640

CVSS score9.8 CRITICAL
EPSS probability2.85%
CISA KEVNot currently listed
Published2017-07-10
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • nvd@nist.gov: CWE-287

Primary references