Tech, ExplainedNetworking, infrastructure and security
Part

Privileged session recording

Every admin keystroke, ready to replay.

INSIDE: PRIVILEGED ACCESS MANAGEMENT (PAM)HOW IT WORKS · A VENDOR'S SESSION ON A SUGAR MILL'S SERVER IN KOLHAPURThe IT firm'sengineer logs inthrough PAM,which opens theserver sessionfor himPAM recordsthe screen andevery command;by minute 41he has typed212 commandsHe types acommand thatdeletes theserver'saudit logPAM matches aforbiddencommand, pausesthe session andalerts the SIEMThe mill's IThead watcheslive and endsthe sessionat 41:20Next morning,the mill and theIT firm replaythe recordingtogetherALSO TALKS TOSIEM↗ SECURITY OPERATIONS CENTREDigital forensics↗ SECURITY OPERATIONS CENTREVendor privileged access managementINSIDE: PRIVILEGED ACCESS MANAGEMENT (PAM)HOW IT WORKS · A VENDOR'S SESSION ON A SUGARMILL'S SERVER IN KOLHAPURThe IT firm's engineerlogs in through PAM,which opens the serversession for himPAM records the screenand every command; byminute 41 he has typed212 commandsHe types a command thatdeletes the server'saudit logPAM matches aforbidden command,pauses the sessionand alerts the SIEMThe mill's IT headwatches live and ends thesession at 41:20Next morning, the milland the IT firm replaythe recording togetherALSO TALKS TOSIEM↗ SECURITY OPERATIONS CENTREDigital forensics↗ SECURITY OPERATIONS CENTREVendor privilegedaccess managementINSIDE: PRIVILEGED ACCESS MANAGEMENT(PAM) · A VENDOR'S SESSION ON ASUGAR MILL'S SERVER IN KOLHAPURThe IT firm's engineer logsin through PAM, which opensthe server session for him↓PAM records the screen and every command;by minute 41 he has typed 212 commands↓He types a command that deletes theserver's audit log↓PAM matches a forbidden command, pausesthe session and alerts the SIEM↓The mill's IT head watches live and endsthe session at 41:20↓Next morning, the mill and the IT firmreplay the recording togetherALSO TALKS TOSIEM↗ SECURITY OPERATIONS CENTREDigital forensics↗ SECURITY OPERATIONS CENTREVendor privileged access management
Inside privileged access management, an IT firm's session on a sugar mill's server is recorded command by command, a forbidden command at minute 41 pauses it and alerts the SIEM, and the mill ends the session and replays it the next day.
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Privileged session recording is the part of privileged access management (PAM) that records everything done with a privileged account, so that the session can be watched live, searched and replayed later. A privileged account is one that can change anything on a system, such as a server's administrator account. The recording captures the screen as video, every command typed and every file transferred.

The recording works because PAM sits between the person and the system. The administrator does not connect to the server directly. He connects to PAM, and PAM opens the connection to the server on his behalf. Everything that passes between them goes through PAM, so PAM can record it. The person cannot switch the recording off, because it does not run on his own computer.

Consider a sugar mill in Kolhapur that hires an outside IT firm to maintain its accounting server. One evening, an engineer from the IT firm logs in through PAM to install an update. He has booked one hour. By minute 41, he has typed 212 commands. Then he types a command that deletes the server's audit log, the file in which the server records who did what. The mill's rules list this command as forbidden. PAM recognises the command, pauses the session and sends an alert to the SIEM. The mill's IT head opens the live session, sees what has happened, and ends it at 41 minutes 20 seconds. The next morning, the mill's team replays the recording together with the IT firm. The engineer says that he was only clearing disk space. The recording shows exactly which commands he ran, so both sides can check his explanation against the facts.

Recordings are also evidence. After an attack, digital forensics investigators can search the recordings for the account that the attacker used, and see each step that the attacker took. Auditors use recordings to check that administrators did only what an approved change ticket in the IT service desk allowed.

Recording is most common for outside staff, such as suppliers and contractors, because the company cannot watch over their computers. Vendor privileged access management makes recording compulsory for every supplier login. A recording does not stop an action by itself. It makes every action visible and tied to a named person. That is why privileged access management (PAM) combines it with approval before the session and a password change after it.

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