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Update detector and monitoring policy for supporting CVE-2026-31431 Copy Fail vulnerability - #17
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This PR adds a new detector for CVE-2026-31431 "Copy Fail" vulnerability. The detector identifies attempts to exploit this vulnerability by detecting AF_ALG socket creation, which is a key indicator of the exploit.
Changes
CS_RT_CVE_2026_31431inevent-processor/detector/wasm/CS_RT_CVE_2026_31431/main.goevent-processor/deploy/CS_RT_CVE_2026_31431.wasmruntime-monitor/pkg/model/tracingpolicy/listen-socket.yamlto include AF_ALG (family 38) in the selectors forsecurity_socket_createkprobeDetails
The detector monitors for
security_socket_createkprobe events and specifically looks for AF_ALG (address family 38) socket creation, which is the signature of the CVE-2026-31431 exploit. When detected, the detector reports a HIGH severity alert.The tracing policy update ensures that the listen-socket policy captures AF_ALG socket creations, which are crucial for detecting this specific vulnerability exploit.