TITLE:
wget NTLM Username Handling Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA17192

VERIFY ADVISORY:
http://secunia.com/advisories/17192/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
GNU wget 1.x
http://secunia.com/product/3416/

DESCRIPTION:
A vulnerability has been reported in wget, which can be exploited by
malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error in the
"ntlm_output()" function when using "memcpy() to copy the supplied
NTLM username to a stack buffer. This can be exploited to cause a
stack-based buffer overflow via a HTTP redirect request that contains
an overly long username in the URL of the "Location" header.

Success exploitation requires that NTLM support is enabled and that
the user is e.g. tricked into using wget on a malicious website.

The vulnerability has been reported in version 1.10. Other versions
may also be affected.

SOLUTION:
Update to version 1.10.2.
http://ftp.gnu.org/pub/gnu/wget/

PROVIDED AND/OR DISCOVERED BY:
Discovered by anonymous person and reported via iDEFENSE.

ORIGINAL ADVISORY:
iDEFENSE:
http://www.idefense.com/application/poi/display?id=322&type=vulnerabilities

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