PutBuffer(buf) return sha } • istio/istio/mixer/pkg/config/store/fsstore.go (line 91) func parseFile(path string, data []byte) []*resource { chunks := bytes.Split(data, []byte("\n---\n")) resources := make([]*resource continue } r, err := ParseChunk(chunk) if err != nil { log.Errorf("Error processing %s[%d]: %v", path, i, err) continue } if r == nil { continue } resources = append(resources, &resource{BackEndResource: WriteFile(path.Join(dir, "key.pem"), privateKey, 0777); err != nil { return fmt.Errorf( "failed to write private key to file: %v", err) } } if certChain != nil { if err := ioutil.WriteFile(path.Join(dir

disk space. See issue 5 case 1. 92 // DownloadTo downloads from remote srcURL to dest local file path 18 Istio Security Audit, 2023 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 data, err := httprequest.Get(u.String()) if err != nil { return "", err } name := filepath.Base(u.Path) destFile := filepath.Join(dest, name) dir := filepath.Dir(destFile) if _, err := os.Stat(dir); os Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') ● CWE-23: Relative Path Traversal ● CWE-36: Absolute Path Traversal ID: ADA-IST-2 Fix: https://github.com/istio/istio/pull/41786

could be used for routing HTTP 1.1 host host, path，method headers HTTP 2 pseudo header: authority pseudo header: authority, path，method， headers gRPC HTTP 2 path Request-Headers(Delivered as HTTP2 headers)

instance is actually a real process in OS. • Endpoint. It is a path in the certain service for incoming requests, such as HTTP URI path or gRPC service class + method signature. Core ConceptsIstio

having ECC be supported in meshConfig for Istio 1.10 as an Alpha feature ○ There will be a migration path and environmental variables as used in this talk will continue to be supported through at least 1

Experience ● Add pre-checks to identify and warn about known potential issues ○ Provide a clear path forward #IstioCon Upgrade Working Group - Test Infrastructure ● Extend and improve the testing

All rights reserved. ● 4G to 5G translation (Protocols like Diameter, SCTP, GTP) ● High speed data path (SR-IOV/DPDK) ● Customizing workload certificate attributes ● Multi-cluster/site visibility ● Deep

original user’s address (IP_TRANSPARENT) ⑤ Server’s response packet is flowing through the same path (TPROXY + Custom Route) #IstioCon TOA Address Caveats : install toa module in kernel #IstioCon

template: metadata: annotations: sidecar.istio.io/userVolume: '[{"name":"wasmfilters- dir","hostPath":{"path":"/var/local/lib/wasm-filters"}}]’ sidecar.istio.io/userVolumeMount: '[{"mountPath":"/var/local/lib/wasm-filters"

networking if enhanced performance is desired ● Overheads introduced ● No high performance data path support ○ Multi-Gbps bandwidth ○ Ultra low latency #IstioCon Performance Limitations: Solutions