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TITLE:
NetPerformer Products Denial of Service Vulnerabilities

SECUNIA ADVISORY ID:
SA21876

VERIFY ADVISORY:
http://secunia.com/advisories/21876/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

OPERATING SYSTEM:
NetPerformer SDM-9500
http://secunia.com/product/11942/
NetPerformer SDM-9380
http://secunia.com/product/11941/
NetPerformer SDM-9230
http://secunia.com/product/11940/
NetPerformer SDM-9220
http://secunia.com/product/11943/

DESCRIPTION:
Arif Jatmoko has reported two vulnerabilities in various NetPerformer
products, which can be exploited by malicious people to cause a DoS
(Denial of Service).

1) An error in the login handling in the telnet service can be
exploited to crash and reboot a vulnerable device by sending an
overly long username (more than 4550 characters).

2) An error in the handling of ICMP packets can be exploited to hang
a vulnerable device by sending a spoofed ICMP packet to the device
via a LAND attack where the source address is the same as the device
address.

The vulnerabilities have been reported in the following products:
* NetPerformer SDM-95xx version 7.x (R1)
* NetPerformer SDM-93xx version 10.x (R2)
* NetPerformer SDM-92xx version 9.x (R1)

SOLUTION:
Filter traffic to the telnet service and filter ICMP packets to the
device where the source address is the same as the destination
address.

PROVIDED AND/OR DISCOVERED BY:
Arif Jatmoko

ORIGINAL ADVISORY:
http://lists.grok.org.uk/pipermail/full-disclosure/2006-September/049434.html

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About:
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