SB2022010906 - Multiple vulnerabilities in Spectrum Discover
Published: January 9, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Information Exposure Through Timing Discrepancy (CVE-ID: CVE-2021-38153)
The vulnerability allows a local user to escalate privileges on the system.
the vulnerability exists due to some components in Apache Kafka use "Arrays.equals" to validate a password or key, which is vulnerable to timing attacks. A local user can abuse the "Arrays.equals" to brute force access credentials and escalate privileges on the system.
2) Origin validation error (CVE-ID: CVE-2021-3618)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to a logic error in TLS implementation when handling different protocols but using compatible certificates, such as multi-domain or wildcard certificates. A remote attacker with ability to perform TCP/IP layer MitM attack can redirect traffic from one subdomain to another, resulting in a valid TLS session. This breaks the authentication of TLS and cross-protocol attacks may be possible where the behavior of one protocol service may compromise the other at the application layer.
This attack technique was dubbed ALPACA (application layer protocol content confusion
attack).
Remediation
Install update from vendor's website.
References
- https://www.ibm.com/blogs/psirt/security-bulletin-vulnerabilities-in-apache-kafka-and-nginx-affect-ibm-spectrum-discover/"
- https://www.ibm.com/blogs/psirt/security-bulletin-vulnerabilities-in-apache-kafka-and-nginx-affect-ibm-spectrum-discover/</a></p><p>
- https://www.ibm.com/support/pages/node/6539222</p><p><br></p>