16639 : Cisco CSS 11000 Series Malformed AAAA Record DoS
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Info

Last Modified

8 months ago

Percent Complete

100%

Disclosure

Apr 30, 2003

Discovery

Unknown

Dates

Exploit

Apr 30, 2003

Solution

Unknown

Description

Cisco CSS 1100 series contains a flaw that may allow a remote denial of service. The issue is triggered when the Cisco CSS DNS server is prompted for a nonexistant AAAA records, the DNS server will respond with response code 3 (NXDOMAIN or "Name Error") instead of response code 0 ("No Error"). These negative responses may be cached by various proxies or caching nameservers and will result in loss of availability for the domain.

Classification

Location: Remote/Network Access Required
Attack Type: Denial of Service
Impact: Loss of Availability
Exploit: Exploit Available
Disclosure: OSVDB Verified

Solution

Upgrade to version 5.00.2.01, 6.10, 7.20.0.03, 7.10.2.06 or higher, as it has been reported to fix this vulnerability.

Products

Cisco Systems, Inc.
Watch-list
Cisco CSS 11000 Content Services Switch
Watch-list
5.00
5.00.1.05
5.01
5.02
5.03
7.10
7.10.1.02

References

Credit

  • Allen D Householder -

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