CVE-2017-5640 — CRITICAL (9.8)

Vulnerability 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.

CVSS Score

9.8

CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Apache	Impala	2.7.0

Related Weaknesses (CWE)

CWE-287

References

http://www.securityfocus.com/bid/99508Third Party AdvisoryVDB Entry
https://lists.apache.org/thread.html/c02e83aa46c90b7cbc87dd649cf8f9b73e11053edde
http://www.securityfocus.com/bid/99508Third Party AdvisoryVDB Entry
https://lists.apache.org/thread.html/c02e83aa46c90b7cbc87dd649cf8f9b73e11053edde

FAQ

What is CVE-2017-5640?

CVE-2017-5640 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 (b...

How severe is CVE-2017-5640?

CVE-2017-5640 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2017-5640?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Impala.