Cleartext transmission of sensitive information in Cassandra - CVE-2020-17516
Published: February 2, 2021
Vulnerability identifier: #VU50246
CSH Severity: Medium
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-17516
CWE-ID: CWE-319
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to software uses insecure communication channel to transmit sensitive information when using "dc" or "rack" internode_encryption setting. A remote attacker can use unencrypted connection despite not being in the same rack or dc, and bypass mutual TLS requirement.
Affected software
Cassandra
How to mitigate CVE-2020-17516
Install updates from vendor's website.
Cassandra - addressed in versions 3.0.24, 3.11.10