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TITLE:
Cisco IOS Network Address Translation Multiple Denial of Service
Vulnerabilities

SECUNIA ADVISORY ID:
SA46179

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46179/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46179

RELEASE DATE:
2011-09-30

DISCUSS ADVISORY:
http://secunia.com/advisories/46179/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/46179/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=46179

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Multiple vulnerabilities have been reported in Cisco IOS, which can
be exploited by malicious people to cause a DoS (Denial of Service).

1) An error in the NAT translation of NetMeeting Directory (LDAP)
packets can be exploited to cause a device to reload via specially
crafted packets sent to TCP port 389.

2) An error in the NAT translation of SIP packets over TCP can be
exploited to cause a device to reload via specially crafted packets
sent to TCP port 5060

3) An error in the NAT translation of SIP packets over UDP can be
exploited to cause a device to reload via specially crafted packets
sent to UPD port 5060

Successful exploitation of this vulnerability requires a MPLS enabled
device.

4) An error in the NAT translation of SIP packets over UDP can be
exploited to cause a device to reload via specially crafted packets
sent to UPD port 5060

5) A memory leak error in the NAT translation of SIP packets over UDP
can be exploited to exhaust memory via specially crafted packets sent
to UDP port 5060.

6) An error in the NAT translation of H.323 packets can be exploited
to cause a device to reload via specially crafted packets sent to TCP
port 1720.

Please see the vendor's advisory for a list of affected versions.

SOLUTION:
Update to a fixed version (please see the vendor's advisory for
details).

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
http://www.cisco.com/warp/public/707/cisco-sa-20110928-nat.shtml

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
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private users keeping their systems up to date against the latest
vulnerabilities.

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Secunia NEVER sends attached files with advisories.
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use those supplied by the vendor.

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