Konica Minolta bizhub PRESS C1100 - Manual (Page 32)

Administrator Security Functions
2
2-24 bizhub PRESS C1100/C1085
2.3
*1
: Audit log ID is saved as user ID when user authentication is successfully made, or when password incon-
formity occurs with a registered user name.
*2
: Audit log ID is saved as unregistered user ID when authentication failure occurs with an unregistered user
name.
The purpose of analyzing the audit log is to understand the following and implement countermeasures:
-
Whether or not data was accessed or tampered with
- Subject of attack
- Details of attack
- Result of attack
For specific analysis methods, refer to the following description.
Specifying unauthorized actions: password authentication
If logs have NG as the result of password authentication (action: 01, 02, 11), items protected by passwords
may have been attacked.
-
Failed password authentication (NG) log entries specify who made the operation, and show if unauthor-
ized actions were made when password authentication failed.
-
Even if password authentication succeeded (OK), you may need to check whether a legitimate user cre-
ated the action. Careful check is recommended especially when successful authentication occurs after
series of failures, or for those made during times other than normal operating hours.
Specifying unauthorized actions: actions other than password authentica-
tion
Since all operation results other than password authentication are indicated as successful (OK), use ID and
action to determine if any unauthorized actions were made.
-
Since you cannot identify what was attacked only with an ID, you need to refer to the correspondence
table of actions on the previous page to determine whether unauthorized actions were made on a per-
sonal box or secure box.
-
Check the time of operation, and see if the user who operated the specific subject made any unauthor-
ized actions.
For example:
If a document saved in a box is printed with fraudulent authentication, the following audit log entry will be
created.
1. Password authentication to the box:
action = 11
10 Change user attribute by administrator User ID 10 OK
11 Password authentication for user User ID
*1
/Unregistered
user ID
*2
11 OK/NG
12 Change attributes of user by user (user
password, etc.) User ID 12 OK
13 (not used)
14 (not used)
15 Access to stored job
(Printing hold/HDD store job, recalling
HDD store job to hold job, storing hold
job on HDD) User ID 15 OK
16 Delete store job User ID 16 OK
17 (not used)
18 (not used)
19 Change HDD lock password Administrator ID 19 OK
20 Date/Time setting User ID 20 OK
No. Operation Audit ID Stored ac-
tion Result