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TITLE:
Crob FTP Server Buffer Overflow Vulnerabilities

SECUNIA ADVISORY ID:
SA15585

VERIFY ADVISORY:
http://secunia.com/advisories/15585/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
Crob FTP Server 3.x
http://secunia.com/product/2952/

DESCRIPTION:
Leon Juranic has reported two vulnerabilities in Crob FTP Server,
which can be exploited by malicious users to compromise a vulnerable
system.

1) A boundary error in the argument handling can be exploited to
cause a stack-based buffer overflow by e.g. sending the "STOR"
command followed by the "RMD" command with specially crafted overly
long arguments.

Successful exploitation allows execution of arbitrary code.

2) A boundary error in the handling of certain characters can be
exploited to cause a heap-based buffer overflow by sending e.g. the
"LIST" or "NLST" command with a specially crafted overly long
argument.

Successful exploitation allows execution of arbitrary code.

The vulnerabilities have been reported in version 3.6.1. Other
versions may also be affected.

SOLUTION:
Grant only access to trusted users.

Use another product.

PROVIDED AND/OR DISCOVERED BY:
Leon Juranic, LSS Security

ORIGINAL ADVISORY:
http://security.lss.hr/en/index.php?page=details&ID=LSS-2005-06-06

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