Secunia Security Advisory - Brett Gervasoni has discovered a vulnerability in TheGreenBow VPN Client, which can be exploited by malicious people to compromise a user's system.
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http://secunia.com/blog/71/
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TITLE:
TheGreenBow VPN Client "tgb" File Processing Buffer Overflow
SECUNIA ADVISORY ID:
SA38262
VERIFY ADVISORY:
http://secunia.com/advisories/38262/
DESCRIPTION:
Brett Gervasoni has discovered a vulnerability in TheGreenBow VPN
Client, which can be exploited by malicious people to compromise a
user's system.
The vulnerability is caused due to a boundary error in the processing
of ".tgb" files and can be exploited to cause a stack-based buffer
overflow e.g. with an overly long string passed via the
"OpenScriptAfterUp" variable.
Successful exploitation allows execution of arbitrary code, but
requires that a user is tricked into adding or replacing a
configuration when a specially crafted ".tgb" file is opened.
The vulnerability is confirmed in version 4.65.003. Other versions
may also be affected.
SOLUTION:
Reportedly, the vulnerability will be fixed in the next release.
Do not open "tgb" files from untrusted sources.
PROVIDED AND/OR DISCOVERED BY:
Brett Gervasoni, SOS Labs.
ORIGINAL ADVISORY:
http://www.senseofsecurity.com.au/advisories/SOS-10-001
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