HTTP2: Varnish Cache HTTP2 Flow Control Denial of Service
This signature detects attempts to exploit a known vulnerability against Varnish Cache. A successful attack can result in a denial-of-service condition.
Extended Description
Varnish Cache before 7.3.2 and 7.4.x before 7.4.3 (and before 6.0.13 LTS), and Varnish Enterprise 6 before 6.0.12r6, allows credits exhaustion for an HTTP/2 connection control flow window, aka a Broke Window Attack.
Short Name
HTTP2:VARNISH-FLW-CNTRL-DOS
Severity
Major
Recommended
False
Recommended Action
None
Category
HTTP2
Keywords
CVE-2024-30156 Cache Control Denial Flow HTTP2 Service Varnish of
Release Date
05/23/2024
Supported Platforms
srx-branch-19.3
vsrx3bsd-19.2
srx-19.4
vsrx3bsd-19.4
srx-branch-19.4
vsrx-19.4
vsrx-19.2
srx-19.3
Sigpack Version
3707
False Positive
Unknown