CVE-2000-0984

published 2000-12-19

CVE-2000-0984: The HTTP server in Cisco IOS 12.0 through 12.1 allows local users to cause a denial of service (crash and reload) via a URL containing a "?/" string.

Priority P2 64 medium 5 CVSS 2.0

AV N AC L Au N C N I N A P

ITW EXPLOIT VulnCheck KEV

The HTTP server in Cisco IOS 12.0 through 12.1 allows local users to cause a denial of service (crash and reload) via a URL containing a "?/" string.

Affected

24 ranges

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Detection & IOCs extracted from sources · hover to see the quote

url http://target/anytext?/↗

• → Look for HTTP requests to Cisco IOS HTTP server where the URL path contains the literal string '?/' — this triggers an infinite loop leading to a watchdog-timer crash and reload. ↗

• · The attack requires the enable password to be absent, known, or easily guessable — exploitation is gated by authentication to the IOS HTTP server. ↗
• · The Cisco IOS HTTP server is only enabled by default on Cisco 1003, 1004, and 1005 routers; on all other affected platforms it must be explicitly enabled. ↗
• · In certain cases the device will not automatically reload after the crash, requiring a manual restart to restore functionality. ↗

CVSS provenance

nvd v2.0 5.0 MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P

vulncheck 5.0 MEDIUM

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