F5-K000148343: High severity F5 BIG-IP vulnerability
Validating the order of the public keys in the Diffie-Hellman Key Agreement Protocol, when an approved safe prime is used, allows remote attackers (from the client side) to trigger unnecessarily expensive server-side DHE modular-exponentiation calculations. The client may cause asymmetric resource consumption. The basic attack scenario is that the client must claim that it can only communicate with DHE, and the server must be configured to allow DHE and validate the order of the public key.
Affected Software
Event History
Frequently Asked Questions
What is the severity of F5-K000148343?
F5-K000148343 is considered a high-severity vulnerability due to the potential for resource exhaustion attacks.
How do I fix F5-K000148343?
To mitigate F5-K000148343, upgrade to the latest versions of the affected F5 products as specified in the advisory.
What systems are affected by F5-K000148343?
F5-K000148343 affects various versions of F5 BIG-IP, BIG-IQ Centralized Management, F5OS-A, F5OS-C, and Traffix SDC.
Can F5-K000148343 be exploited remotely?
Yes, F5-K000148343 can be exploited remotely by attackers from the client side.
What types of attacks does F5-K000148343 facilitate?
F5-K000148343 allows attackers to trigger costly server-side DHE modular-exponentiation calculations, leading to potential denial-of-service conditions.