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NCCGroup EasyDA Credential Disclosure

NCCGroup EasyDA Credential Disclosure
Posted Apr 4, 2014
Authored by 0a29406d9794e4f9b30b3c5d6702c708

NCCGroup EasyDA suffers from a credential disclosure vulnerability due to misuse of /tmp.

tags | exploit
SHA-256 | 5b7ef0d48812b65b840f408b3ca2c5a9a046d447cc42215e356f33637313da7a

NCCGroup EasyDA Credential Disclosure

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_______ ________ ________ _____ _______
\ _ \ _____ \_____ \/ __ \/ | | \ _ \
/ /_\ \\__ \ / ____/\____ / | |_/ /_\ \
\ \_/ \/ __ \_/ \ / / ^ /\ \_/ \
\_____ (____ /\_______ \ /____/\____ | \_____ /
\/ \/ \/ |__| \/
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0A29-14-1 : NCCGroup EasyDA privilege escalation & credential disclosure
vulnerability [0day]

Author: 0a29406d9794e4f9b30b3c5d6702c708

twitter.com/0a29 - 0a29.blogspot.com - GMail 0a2940

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Description:
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EasyDA by NCCGroup uses /tmp in an insecure manner.
1) Domain Admin credentials can be obtained by a low-privileged user
2) A low-privileged user can escalate to the user which runs EasyDA

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Timeline:
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22 June 2013 - Reported
24 June 2013 - Acknowledged
20 March 2014 - NCCGroup publish an insecure temp priv-esc in Nessus
(plugin)
20 March 2014 - 0a2940 remembers about EasyDa......
02 April 2014 - Published (with extra-special ascii :-))


NCCGroups's vuln in nessus:
https://www.nccgroup.com/media/481256/ncc00643-technical-advisory-nessus-authenticated-scan-local-privilege-escalation.pdf
NCCGroup's software:
https://github.com/nccgroup/easyda

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Details:
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Many problems
e.g.
cat "$HASHFILE" |cut -d ":" -f 1 >/tmp/user.txt

cat "$HASHFILE" |cut -d ":" -f 3,4 >/tmp/pass.txt

paste /tmp/user.txt /tmp/pass.txt >/tmp/userpass.txt

etc.

More info:
https://www.securecoding.cert.org/confluence/display/seccode/FIO21-C.+Do+not+create+temporary+files+in+shared+directories


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