CVE-2003-1132

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2003-12-31 · updated 2026-06-16

Description

The DNS server for Cisco Content Service Switch (CSS) 11000 and 11500, when prompted for a nonexistent AAAA record, responds with response code 3 (NXDOMAIN or "Name Error") instead of response code 0 ("No Error"), which allows remote attackers to cause a denial of service (inaccessible domain) by forcing other DNS servers to send and cache a request for a AAAA record to the vulnerable server.

Affected products

Cisco Content Services Switch 11000: all versions
Cisco Content Services Switch 11500: all versions

References

http://www.cisco.com/warp/public/707/cisco-sa-20030430-dns.shtml
http://www.kb.cert.org/vuls/id/714121
http://www.cisco.com/warp/public/707/cisco-sa-20030430-dns.shtml
http://www.kb.cert.org/vuls/id/714121

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