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Adapt regex for case when root login is not allowed #7

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Adapt regex for case when root login is not allowed #7

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4 changes: 2 additions & 2 deletions bearDropper
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Original file line number Diff line number Diff line change
Expand Up @@ -197,7 +197,7 @@ getLogTime () {
# extra validation, fails safe. Args: $1=log line
getLogIP () {
local logLine="$1"
local ebaPID=`echo "$logLine" | sed -n 's/^.*authpriv.info \(dropbear\[[0-9]*\]:\) Exit before auth:.*/\1/p'`
local ebaPID=`echo "$logLine" | sed -n 's/^.*authpriv.info \(dropbear\[[0-9]*\]:\) Exit before auth.*/\1/p'`
[ -n "$ebaPID" ] && logLine=`$cmdLogreadEba | fgrep "${ebaPID} Child connection from "`
echo "$logLine" | sed -n 's/^.*[^0-9]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*$/\1/p'
}
Expand Down Expand Up @@ -429,7 +429,7 @@ exitStatus=0
fileRegex="/tmp/bearDropper.$$.regex"
uciLoad logRegex 's/[`$"'\\\'']//g' '/has invalid shell, rejected$/d' \
'/^[A-Za-z ]+[0-9: ]+authpriv.warn dropbear\[.+([0-9]+\.){3}[0-9]+/p' \
'/^[A-Za-z ]+[0-9: ]+authpriv.info dropbear\[.+:\ Exit before auth:.*/p' > "$fileRegex"
'/^[A-Za-z ]+[0-9: ]+authpriv.info dropbear\[.+:\ Exit before auth.*/p' > "$fileRegex"
lastPersistentStateWrite="`date +%s`"
loadState
bddbCheckStatusAll
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4 changes: 2 additions & 2 deletions src/bearDropper.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -108,7 +108,7 @@ getLogTime () {
# extra validation, fails safe. Args: $1=log line
getLogIP () {
local logLine="$1"
local ebaPID=`echo "$logLine" | sed -n 's/^.*authpriv.info \(dropbear\[[0-9]*\]:\) Exit before auth:.*/\1/p'`
local ebaPID=`echo "$logLine" | sed -n 's/^.*authpriv.info \(dropbear\[[0-9]*\]:\) Exit before auth.*/\1/p'`
[ -n "$ebaPID" ] && logLine=`$cmdLogreadEba | fgrep "${ebaPID} Child connection from "`
echo "$logLine" | sed -n 's/^.*[^0-9]\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*$/\1/p'
}
Expand Down Expand Up @@ -340,7 +340,7 @@ exitStatus=0
fileRegex="/tmp/bearDropper.$$.regex"
uciLoad logRegex 's/[`$"'\\\'']//g' '/has invalid shell, rejected$/d' \
'/^[A-Za-z ]+[0-9: ]+authpriv.warn dropbear\[.+([0-9]+\.){3}[0-9]+/p' \
'/^[A-Za-z ]+[0-9: ]+authpriv.info dropbear\[.+:\ Exit before auth:.*/p' > "$fileRegex"
'/^[A-Za-z ]+[0-9: ]+authpriv.info dropbear\[.+:\ Exit before auth.*/p' > "$fileRegex"
lastPersistentStateWrite="`date +%s`"
loadState
bddbCheckStatusAll
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2 changes: 1 addition & 1 deletion src/config/bearDropper
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Expand Up @@ -54,7 +54,7 @@ config bearDropper
list logRegex '/has invalid shell, rejected$/d' # delete (/d) - use to filter out
# print (/p) - use to filter in
list logRegex '/^[A-Za-z ]+[0-9: ]+authpriv.warn dropbear\[.+([0-9]+\.){3}[0-9]+/p'
list logRegex '/^[A-Za-z ]+[0-9: ]+authpriv.info dropbear\[.+:\ Exit before auth:.*/p'
list logRegex '/^[A-Za-z ]+[0-9: ]+authpriv.info dropbear\[.+:\ Exit before auth.*/p'

# whitelist entries do not work yet; as a temporary workaround, put in a firewall rule upstream
#
Expand Down