CVE-2021-23005 Weak cryptography in BIG-IQ
Attackers can intercept high-availability failover traffic because BIG-IQ fails to use TLS for Corosync when a Quorum device is configured.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-23005?
CVE-2021-23005 is a critical vulnerability in F5 Big-Iq Centralized Management, published on 31 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
On all 7.x and 6.x versions (fixed in 8.0.0), when using a Quorum device for BIG-IQ high availability (HA) for automatic failover, BIG-IQ does not make use of Transport Layer Security (TLS) with the Corosync protocol. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
Which versions are affected by CVE-2021-23005?
It affects 1 product.
Products include F5 Big-Iq Centralized Management.
How do I fix CVE-2021-23005?
No fix has been published for CVE-2021-23005 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-23005 being exploited?
There is no known exploitation of CVE-2021-23005 in the wild and no public exploit code.
Other vulnerabilities in F5 Big-Iq Centralized Management
Sources
Also known as GHSA-x5xq-4c5q-64fh.