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Special Forums Cybersecurity Maybe a security problem involving Linux hosts Post 302980273 by SInt on Thursday 25th of August 2016 03:42:13 PM
Old 08-25-2016
Maybe a security problem involving Linux hosts

Hello,

with the following problem I feel helpless because I do not know where to look for the problem.
Sorry in advance for my poor English.

At some point the interaction with people on Freenode IRC has become mysterious and offending so that I checked my modem/router device. When I tried to make a change the modem gave me the error message that another admin is logged in. It alerted me because all other computers were disconnected. So I called my ISP and they agreed that my device is listed there at "being attacked". They sent me a replacement and they also sent me a new password.

With the new modem I booted a linux livecd that i got from a linux magazine. And from there I downloaded the ISOs and wiped all my machines using DBAN.

With all the people in my social environment telling me to relax, think positive and all that stuff like "its only your false perceiption on things" I stopped paying attention on mysterious errors, etc. Until I needed the Hexchat client to check a local ircd install. And it launched with 1 network added. I am absolutely sure I had 0 networks in that network list when I went on an IRC break. Several months before there was a similar thing where all 18 or 19 networks had their name changed to EF-Net.

Another thing is that I stored all my website passwords in Lastpass and when I went offline for 3 days to install and configure some things my passphrase was changed to the one I used several months ago and all my stored passwords were deleted.

I could provide several more of these stories.

I hope none of you guys reacts now how most people reacted: "this guy is crazy, give him more meds" or something. I know it sounds crazy and it is crazy. But lets say my observations are correct where could the entry point be for an attacker?


friendly Greetings,
SInt
 

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TIGEXP(8)						      Administrator Commands							 TIGEXP(8)

NAME
tigexp - UNIX Security Checker Explanation Generator SYNOPSIS
tigexp msgid [msgid[msgid...]] tigexp [-f|-F] [security_report] DESCRIPTION
Tigexp is used to generate explanations of the output from the Tiger security checking package. In the first form, tigexp will generate an explanation of each of the message ids listed. In the second form, the security report specified will be scanned and explanations gener- ated. The -f option will generate one explanation for each unique message id in the security report, whereas the -F option will output the security report with explanations inserted after each entry in the report. There are five different message levels produced by Tiger. Each of the message levels is the last letter of the message id. The levels are: ALERT A message of this level indicates that Tiger has detected a possible intrusion attempt or troublesome misconfiguration which can expose the whole system to attacks. FAIL Messages of this level indicate a violation of a generic security policy or a possible intrusion. Appropriate action should be taken to fix this security issue. WARN Messages of this level indicate a security issue which should be checked further and might indicate a probable vulnerability or exposure. Most Tiger messages appear in this category. INFO These includes information messages which are not necessarily a security violation but might be useful for the administrator. Note that the tigerrc configuration file through the Tiger_Show_INFO_Msgs option determines whether or not Tiger shows these items. The default behaviour is to not show them. ERROR These messages are errors in the execution of Tiger (or any of its scripts), this is probably due to a misconfiguration in the pro- gram, because of a problem in the installation or because a file needed for the test is missing. The script who outputs this error should be investigated further. CONFIG Messages with this level inform of stages in the configuration process of Tiger. They are not errors (otherwise ERROR would be used) but notices for the user running the program explaining, for example, which configuration might be used. OPTIONS -f Scan the indicated security report and generate explanations of it. One explanation will be generated for each unique message id in the security report. If the name of a security report is not given, then the report is read from stdin. -F Output the indicated security report with explanations inserted after each entry in the report. If the name of a security report is not given, then the report is read from stdin. FILES
$TIGERHOMEDIR/doc/explain.idx SEE ALSO
tiger(8) BUGS
If the explanation index is out of date, it doesn't recognize it and generates junk. Security 12 August 2003 TIGEXP(8)
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