CVE-2017-5640

critical Apache
CVSS v3 Base Score
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
1.3%
Exploitation probability in 30 days
Top 20% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: July 10, 2017 (3230 days ago)
Last Modified: May 13, 2026
Vendor: Apache
Source: NVD

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.

CWE

CWE-287

Affected Products

apache impala

References

🔗 www.securityfocus.com 🔗 lists.apache.org 🔗 www.securityfocus.com 🔗 lists.apache.org