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[SA11602] Opera Browser Telnet URI Handler File Manipulation Vulnerability
From: Secunia Security Advisories (sec-adv
secunia.com)
Date: Thu May 13 2004 - 06:24:24 CDT
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TITLE:
Opera Browser Telnet URI Handler File Manipulation Vulnerability
SECUNIA ADVISORY ID:
SA11602
VERIFY ADVISORY:
http://secunia.com/advisories/11602/
CRITICAL:
Less critical
IMPACT:
Manipulation of data
WHERE:
From remote
SOFTWARE:
Opera 7.x
DESCRIPTION:
A vulnerability has been reported in the Opera browser, which can be
exploited by malicious people to create or truncate files on a user's
system.
The vulnerability is caused due to an input validation error within
the telnet URI Handler. The problem is that "-" characters aren't
filtered at the beginning of a hostname, which makes it possible to
pass options to the telnet utility.
The vulnerability has been reported in version 7.23 for Windows and
Linux. Prior versions are likely also affected.
SOLUTION:
Update to version 7.50.
http://www.opera.com/download/
PROVIDED AND/OR DISCOVERED BY:
Discovered by: Karol Wiesek and Greg MacManus.
Reported by: iDEFENSE.
ORIGINAL ADVISORY:
http://www.idefense.com/application/poi/display?id=104&type=vulnerabilities
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