SERVER-OTHER -- Snort has detected traffic exploiting vulnerabilities in a server in the network.
SERVER-OTHER Intel AMT HTTP invalid chunk size attempt
This rule looks for incoming negative chunk sizes in http packets.
Malformed HTTP requests with negative chunk sizes incoming to victim systems.
No public information
No known false positives
Cisco Talos Intelligence Group
No rule groups
Buffer Overflows occur when a memory location is filled past its expected boundaries. Computer attackers target systems without proper terminating conditions on buffers, which then write the additional information in other locations in memory, overwriting what is there. This could corrupt the data, making the system behave erratically or crash. The new information could include malicious executable code, which might be executed.
CVE-2020-8758Improper buffer restrictions in network subsystem in provisioned Intel(R) AMT and Intel(R) ISM versions before 11.8.79, 11.12.79, 11.22.79, 12.0.68 and 14.0.39 may allow an unauthenticated user to potentially enable escalation of privilege via network access. On un-provisioned systems, an authenticated user may potentially enable escalation of privilege via local access.
Technique: Firmware Corruption
For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org