Reliance on Reverse DNS Resolution for a Security-Critical Action in Lightbend - CVE-2023-31442
Published: February 5, 2025
Vulnerability identifier: #VU103643
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2023-31442
CWE-ID: CWE-350
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Akka Project
Affected software:
Lightbend
Lightbend
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to async-dns resolver (used by Discovery in DNS mode and transitively by Cluster Bootstrap) uses predictable DNS transaction IDs when resolving DNS records. A remote attacker can exploit the vulnerability to perform a denial of service attack.
How to mitigate CVE-2023-31442
Install updates from vendor's website.